Cavilabiata BECHLY,
1996
- Included taxa: Cordulegastrida
and Cristotibiata.
-
Autapomorphies:
- Wing venation: discoidal triangles at least
somewhat longitudinal elongate in both wings (reversed
in the forewing of Paneurypalpidomorpha), especially in
the hindwing; distal part of antesubnodal area free of
crossveins ("cordulegastrid gap") (BECHLY,
1994; convergent to Gomphaeschnidae,
Araripegomphidae, Cordulagomphinae, and a few
other Anisoptera; reversed in Chlorogomphida); gaff (=
basal CuA before its branching) of the hindwing at
least slightly prolonged (convergent to Aeshnodea);
RP3/4 and MA slightly undulating in both pairs of wings
(reversed in Juracorduliidae and
Paneurypalpida); reduction of the dorsal sclerotisation
that is connecting the ScP-kink with the nodal veinlet
(nodal bracket).
- Other characters: compound eyes
medio-dorsally more or less approximated (CARLE &
LOUTON, 1994; convergent to Aeshnoptera); postfrons
with intraocellar lobe (LOHMANN, 1995), convergent to
Aeshnoptera (contra CARLE, 1995;
contra LOHMANN, 1996); larval frons in the
groundplan with a distinct frontal ridge (=
"frontal plate") (FRASER, 1957; CARLE, 1995)
that is correlated with a burrowing life style (maybe
rather a derived groundplan character of Exophytica
according to LOHMANN, 1996) (reduced in Eurypalpida);
larva with spoon-shaped (scoop-like) concave prehensile
mask (FRASER, 1957; CARLE & LOUTON, 1994); larval
labrum concealed by enlarged triangular-shaped lateral
lobes of the prehensile mask ("palps") (CARLE
& LOUTON, 1994; CARLE, 1995); the inner margin of
the lateral lobes ("palps") of the larval
prehensile mask is strongly and irregularly serrated in
the groundplan (CARLE, 1995); larval labium in the
groundplan with a bifid apex of the prementum (LOHMANN,
1995, 1996) that is reduced in Eurypalpida; endhook of
larval labium distinctly shorter than "palp"
(CARLE & LOUTON, 1994); larval prehensile mask with
characteristical pattern of elongate dorsal setae on
the prementum and the lateral lobes ("palps")
(FRASER, 1957; CARLE, 1995; convergent to Lestidae and
Coenagrionodea; reduced in Neopetaliidae); larval
gizzard (= proventriculus) is bilaterally symmetrical
(BULLENS, 1966; CARLE, 1995); the four lobes of the
larval gizzard with a large acute tooth with 2-8 small
denticles arranged serially along posterior edges
(Fraser, 1957; CARLE & LOUTON, 1994; CARLE, 1995);
larval abdominal transverse muscles 4 and 5 phragmatic
(LOHMANN, 1995, 1996; contra CARLE, 1995;
muscle 5 is reduced in derived groups, e.g.
Libellulidae, according to ASAHINA, 1954); embryo with
a partially invaginated type of germ-band (ANDO, 1962);
egg with conical micropylar projection which is convex
in the groundplan (BECNEL & DUNKLE, 1990; MAY,
1995a); female ovipositor with vestigial progonocoxae
and strap- or rod-like metagonopodites (CARLE, 1995;
the other groundplan reductions in the exophytic
ovipositor are interpreted by me as synapomorphies with
Gomphides, contra CARLE, 1995); the
progonapophyses of the female ovipositor are
secondarily elongated into a gently tapered spade
("pseudo-ovipositor") that extends beyond the
caudal end of the abdomen (LOHMANN, 1996; transformed
in Neopetaliidae and reduced in Chlorogomphidae and
most Eurypalpida, but retained in some Synthemistidae
and Gomphomacromia), correlated with an
endosedimentary oviposition in flight (FRASER, 1957;
PFAU, 1985, 1991; CARLE & LOUTON, 1994; CARLE,
1995); posterior margin of larval abdominal segments in
the groundplan with long setae (CARLE, 1995); adult
labium with at least somewhat enlarged
"palps"; larval wing pads divergent (reversed
in some Cordulegastrida and in the Neopetaliidae and
Neolamellida; treated as Brachystigmata autapomorphy by
CARLE, 1995); male secondary genitalia with derived
type of lamina anterior, with an elongated and
thickened "Grenzstück" and reduced
"Spangen" (SCHMIDT, 1916); proximal
cylindrical part of the third segment of the male
vesicula spermalis distinctly shorter than the second
segment (SCHMIDT, 1916); lateral spines only present on
segments 8 and 9 of the larval abdomen or even more
reduced (secondarily increased in a few derived
libellulids); anterior margin of larval prementum
secondarily without dense row of setae; characteristic
burrowing and camouflage behaviour, different from
Gomphides (HEIDEMANN & SEIDENBUSCH, 1993; CARLE,
1995); terminal segment of male vesicula spermalis
without primary flagellae (LOHMANN, 1996).
-
Taxonomy:
- Libellulini FRASER, 1957 (taxon nov., not a
tribus)
- [Libelluloidea sensu CARLE, 1986]
- Cavilabiata BECHLY, 1996a (taxon nov.)
- Cavolabiata LOHMANN, 1996 (taxon nov., based on a
suggestion of Bechly)
Cordulegastrida
BECHLY, 1996
- Included taxa: Zoraenidae and Cordulegastridae.
-
Autapomorphies:
- Wing venation: "cordulegastrid
gap" very distinct in all wings (BECHLY, 1994);
wings with a basal furcation of IR2 basal of the
lestine oblique vein (BECHLY, 1994; CARLE & LOUTON,
1994; the similar furcation in Lindeniidae is situated
distal of the lestine oblique vein and without doubt a
convergence); pterostigmal brace vein reduced
(convergent to Hemeroscopidae, Chlorogomphida,
Valdicordulioidea, Eocordulia,
and some Eurypalpida) (BECHLY, 1994); discoidal
triangles of similar elongate shape in both pairs of
wings (FRASER, 1957; BECHLY, 1994), correlated with a
secondarily less distinct pseudo-anal vein PsA and
subdiscoidal triangle (convergent to Neopetaliidae and
Hemeroscopidae).
- Other characters: male meso- and metatibiae
with outer spines extremely peg-like
("Pufferdornen") (BUCHHOLZ, 1963; LOHMANN,
1992, 1996; CARLE & LOUTON, 1994; CARLE, 1995; the
distinctness of this character is here regarded as
derived, contra LOHMANN, 1995); male hamuli
anteriores large erect-foliate (CARLE & LOUTON,
1994; CARLE, 1995); the progonapophyses of the female
ovipositor are more strongly elongated into a gently
tapered spade ("pseudo-ovipositor") that
extends beyond the caudal end of the abdomen
(convergent to Steleopteridae,
Tarsophlebiidae, Aeschnidiidae); larval anal
pyramid elongated and attenuate, with a long
epiproct-process and long paraprocts (LOHMANN, 1995,
1996; convergent to Neoaeshnida), but with small cerci
that are shorter than the half length of the ventral
margin of the 10. abdominal segment (CARLE, 1995;
convergent to Zygoptera and Austropetaliida); in adult
males the lateral longitudinal keels at the ventral
margin of abdominal tergum 3 are distinctly widened and
somewhat pellucid; number of macrotrichae on the wing
veins strongly reduced (convergent to Gomphides);
unique shape of the terminal segment of the male
vesicula spermalis (LOHMANN, 1995, 1996).
-
Taxonomy:
- [partim: "Gomphines" SELYS,
1850]
- [légion Cordulegaster SELYS, 1854
(not available as family-group taxon according to Art.
11f IRZN)]
- [partim: "Fissilabres" SELYS,
1854 (taxon nov.)]
- [partim: "Gomphinae"; SELYS in
HAGEN, 1858]
- [partim: "Vacuibases" SELYS in
HAGEN, 1858 (taxon nov.)]
- [Cordulegasterina sensu HAGEN, 1875 (nom.
imperf.)]
- [partim: "Dynamophlebiae"
BUCHECKER, 1876 (taxon nov.)]
- [Cordulegastrina sensu HAGEN, 1885 (nom.
correct.)]
- [partim: "Cordulegasterina";
KIRBY, 1890]
- [Cordulegasterinae sensu HANDLIRSCH in
SCHRÖDER, 1925]
- [partim: "Fissilabioidea"
FRASER, 1929, 1933 (taxon nov.)]
- Cordulegastrida BECHLY, 1996a (taxon nov.)
- Cordulegastrata LOHMANN, 1996 (taxon nov.)
Zoraenidae LOHMANN,
1992
(Type genus: Zoraena KIRBY, 1890.)
- Included taxa: only including the two
genera Zoraena KIRBY, 1890 and
Archegaster LOHMANN, 1992.
-
Autapomorphies:
- Wing venation: see LOHMANN (1995).
- Other characters: see LOHMANN (1995).
-
Taxonomy:
- Zoraeninae LOHMANN, 1992 (subfam. nov.;
intentionally proposed as paraphylum)
- [Zoraeninae sensu LOHMANN, 1995 (sens.
nov.) (unpublished according to Art. 8 IRZN)]
- Zoraenidae sensu BECHLY, 1996a (stat.
nov.)
Cordulegastridae
HAGEN, 1875
(Type genus: Cordulegaster [LEACH], [1815].)
- Included taxa: Cordulegastrinae
and Thecagastrinae.
-
Autapomorphies:
- Wing venation: see LOHMANN (1995).
- Other characters: see LOHMANN (1995).
-
Taxonomy:
- Cordulegasterina HAGEN, 1875 (nom. imperf. ?)
- Cordulegastrina; HAGEN, 1885 (nom. correct.
?)
- Cordulegasteridae; BANKS, 1892 (either an jun. obj.
syn., or a stat. nov. ex Cordulegasterina HAGEN,
1875)
- Cordulegasteridae; CALVERT, 1893
- Cordulegastridae; JACOBSON & BIANCHI,
1905
- Cordulegasteridae; FRASER, 1929, 1933
- Cordulegasteridae; TILLYARD & FRASER,
1940
- Cordulegasteroidea; TILLYARD & FRASER, 1940
(stat. nov.)
- Cordulegasteroidea; FRASER, 1957
- Cordulegastroidea; PRITYKINA, 1980
- Cordulegastridae; CARLE, 1982 (sens. nov.)
- Cordulegastridae; CARLE, 1986 (sens. nov.)
- Cordulegastridae; LOHMANN, 1992 (sens. nov.)
- Cordulegastrinae sensu LOHMANN, 1992
(sens. nov.)
- [Cordulegastrinae sensu LOHMANN, 1995
(unpublished according to Art. 8 IRZN)]
- Cordulegastridae sensu BECHLY, 1996a
(sens. nov.)
Cordulegastrinae
HAGEN, 1875
(Type genus: Cordulegaster [LEACH], [1815].)
- Included taxa: Taeniogastrini and
Cordulegastrini.
-
Autapomorphies:
- Wing venation: see LOHMANN (1995).
- Other characters: see LOHMANN (1995).
-
Taxonomy:
- Cordulegastrinae BUCHECKER, 1876 (stat. nov.)
- Cordulegasterinae; LUCAS, 1900
- Cordulegasterinae; NEEDHAM, 1903
- Cordulegastrinae; TILLYARD,1917
- Cordulegasterinae; FRASER, 1929, 1933, 1940
- Cordulegastrinae; LOHMANN, 1992 (sens. nov.;
incorrectly indicated as stat. nov.)
- [Cordulegastrini sensu LOHMANN, 1995
(sens. nov.) (unpublished according to Art. 8
IRZN)]
- Cordulegastrinae sensu BECHLY, 1996a
(sens. nov.)
Taeniogastrini LOHMANN,
1992
(Type genus: Taeniogaster SELYS, 1854.)
- Included taxa: only including the type
species Taeniogaster obliqua (SAY, 1839) (nec
1838: DAVIES & TOBIN, 1985).
-
Autapomorphies:
- Wing venation: see LOHMANN (1995).
- Other characters: see LOHMANN (1995).
-
Taxonomy:
- Taeniogastrini LOHMANN, 1992 (trib. nov.)
- [Taeniogastrina sensu LOHMANN, 1995
(invalid stat. nov. since unpublished according to Art.
8 IRZN)]
Cordulegastrini HAGEN,
1875
(Type genus: Cordulegaster [LEACH], [1815].)
- Included taxa: only including the two
genera Cordulegaster [LEACH], [1815] and
Kalyptogaster LOHMANN, 1992.
-
Autapomorphies:
- Wing venation: see LOHMANN (1995).
- Other characters: see LOHMANN (1995).
-
Taxonomy:
- Cordulegastrini sensu LOHMANN, 1992 (stat.
nov.) (nom. transl. ex Cordulegasteridae BANKS, 1892
(sic))
- [Cordulegastrina sensu LOHMANN, 1995
(invalid stat. nov. since unpublished according to Art.
8 IRZN)]
Thecagastrinae LOHMANN,
1992
(Type genus: Thecagaster SELYS, 1854; =
Kuldanagaster YOUSUF & YUNUS, 1974, jun. subj.
syn.)
- Included taxa: Pangaeagastrini
and Thecagastrini.
-
Autapomorphies:
- Wing venation: see LOHMANN (1995).
- Other characters: see LOHMANN (1995).
-
Taxonomy:
- Kuldanagasterinae YOUSUF & YUNUS, 1974 (subfam.
nov. with the type genus Kuldanagaster YOUSUF
& YUNUS, 1974 = Thecagaster SELYS, 1854)
(jun. subj. syn.)
- Thecagastrini LOHMANN, 1992 (trib.nov.)
- [Thecagastrini sensu LOHMANN, 1995
(unpublished according to Art. 8 IRZN)]
- Thecagastrinae sensu BECHLY, 1996a (stat.
nov.)
Pangaeagastrini
BECHLY, 1996
(Type genus: Pangaeagaster LOHMANN, 1992)
- Included taxa: only including the type
species Pangaeagaster maculata (SELYS, 1854).
-
Autapomorphies:
- Wing venation: see LOHMANN (1995).
- Other characters: see LOHMANN (1995).
-
Taxonomy:
- [Pangaeagastrina sensu LOHMANN, 1995
(unpublished manuscript name according to Art. 8
IRZN)]
- Pangaeagastrini BECHLY, 1996a (trib. nov.)
Thecagastrini LOHMANN,
1992
(Type genus: Thecagaster SELYS, 1854; =
Kuldanagaster YOUSUF & YUNUS, 1974, jun. subj.
syn.)
- Included taxa: Lauragastrina and Thecagastrina.
-
Autapomorphies:
- Wing venation: see LOHMANN (1995).
- Other characters: see LOHMANN (1995).
-
Taxonomy:
- Thecagastrini LOHMANN, 1992 (trib. nov.)
- [Thecagastrina sensu LOHMANN, 1995
(invalid stat. nov. since unpublished according to Art.
8 IRZN)]
- Thecagastrini sensu BECHLY, 1996a
Lauragastrina BECHLY,
1996
(Type genus: Lauragaster LOHMANN, 1992)
- Included taxa: only including the type
genus Lauragaster LOHMANN, 1992.
-
Autapomorphies:
- Wing venation: see LOHMANN (1995).
- Other characters: see LOHMANN (1995).
-
Taxonomy:
- Lauragastrina BECHLY, 1996a (subtrib. nov.)
Thecagastrina LOHMANN,
1992
(Type genus: Thecagaster SELYS, 1854; =
Kuldanagaster YOUSUF & YUNUS, 1974, jun. subj.
syn.)
- Included taxa: only including the two
genera Anotogaster SELYS, 1854 and
Thecagaster SELYS, 1854; the latter with the three
subgenera "Neallogaster" COWLEY, 1934,
Sonjagaster LOHMANN, 1992 and Thecagaster
SELYS, 1854.
-
Autapomorphies:
- Wing venation: see LOHMANN (1995).
- Other characters: see LOHMANN (1995).
-
Taxonomy:
- Kuldanagasterinae sensu YOUSUF &
YUNUS, 1974 (subfam. nov. with the type genus
Kuldanagaster YOUSUF & YUNUS, 1974 =
Thecagaster SELYS, 1854) (jun. subj.
syn.)
- Thecagastrini LOHMANN, 1992 (trib. nov.)
- Thecagastrina sensu BECHLY, 1996a (stat.
nov.)
Cristotibiata BECHLY, 2003e
- Included taxa: Neopetaliidae and Brachystigmata.
-
Autapomorphies:
- Wing venation: pterostigmata not parallel
sided (distal side more oblique than basal side), and
rather stout with length less than 8 times width (CARLE
& LOUTON, 1994); forewing nodus shifted distinctly
distal of midwing position (reversed in Libellulidae);
the hindwing CuAa is shortened, with fewer (1-6)
posterior branches (BECHLY, 1994); anal loop at least
elongated and enlarged, with more than 5 cells in the
groundplan (BECHLY, 1994).
- Other characters: adult compound eyes
medio-dorsally even more approximated (convergent to
Aeshnoptera); adult lateral clypeal lobes inflated
(CARLE & LOUTON, 1994; CARLE, 1995); adult
intraocellar lobe with at least a small posterior
inflation (CARLE & LOUTON, 1994; CARLE, 1995);
males with true tibial keels (carinae or cristae
tibiales) that have at least 1/3 length of the
protibiae and 1/5 length of the meso- and metatibiae
(FRASER, 1957; CARLE & LOUTON, 1994; CARLE, 1995;
reduced in Libellulida); adult glossal processes
("paraglossal spines") obsolete (CARLE &
LOUTON, 1994; CARLE, 1995); metagonapophyses of female
ovipositor further reduced (CARLE & LOUTON,
1994).
-
Taxonomy:
- Carinitibiata BECHLY, 1996a (taxon nov.;
incorrectly latinized)
- Ocreata LOHMANN, 1996 (taxon nov.)
- Cristotibiata BECHLY, 2003e (taxon nov.)
Neopetaliidae TILLYARD
& FRASER, 1940
(Type genus: Neopetalia COWLEY, 1934 nom. subst.
pro Petalia HAGEN in SELYS, 1854, nec
Petalia XXX.)
- Included taxa: only including the type
species Neopetalia punctata (SELYS, 1854).
-
Autapomorphies:
- Wing venation: costal margin of wings with a
row of 4 reddish spots (BECHLY, 1994; CARLE &
LOUTON, 1994; CARLE, 1995; convergent to
Austropetaliida); the most distal spot divided by the
yellowish orange pterostigma (CARLE & LOUTON,
1994); intercalary vein IR1 secondarily long and
straight (convergent to Petaluridae, Austropetaliida,
Petaliaeschna and Hageniidae) and forked
(LOHMANN, 1995, 1996; convergent to the neoaeshnid
genus Allopetalia), consequently the area
between RA and RP1 stays only unicellular for 3-4 cells
(convergent to Austropetaliida and Libellulida);
discoidal triangles of similar elongate shape in both
pairs of wings (FRASER, 1957; BECHLY, 1994), correlated
with a secondarily less distinct pseudo-anal vein PsA
and subdiscoidal triangle (convergent to
Cordulegastrida and Hemeroscopidae).
- Other characters: adult compound eyes
medio-dorsally contiguous; adult frons hypertrophied;
males with ordinary spines on the outer margin of the
meso- and metatibiae (LOHMANN, 1995, 1996; peg-like
spines reduced, convergent to Neolamellida); male
hamuli anteriores contiguous and L-shaped (CARLE &
LOUTON, 1994; CARLE, 1995); female tergum 2 with
"genital lobes" (CARLE & LOUTON, 1994;
CARLE, 1995); female sternum 10 expanded into a unique
huge circular splash plate (CARLE & LOUTON, 1994),
correlated with elongate curved cerci supporting its
outer rim (CARLE & LOUTON, 1994; CARLE, 1995);
larval prehensile mask with bilobate lateral lobes
("palps"), ending in 5 or 6 irregular medial
teeth (CARLE & LOUTON, 1994); larval prehensile
mask with only 4-6 vestigial setae on the prementum and
only one small dorso-medial seta on the lateral lobes
("palps") (CARLE, 1995); larval mesonotum
with postspiracular spines (CARLE, 1995); adult body
excessively hairy, the abdominal segments 5-8 with
ventro-apical tufts of long black hair (CARLE &
LOUTON, 1994; CARLE, 1995); larval male epiproctal
tubercle large acute-pyramidal (CARLE, 1995); larval
antefrons mound-like with lateral patches of spine-like
setae (CARLE, 1995); larval antennae with 6 segments
and the third segment about as long as the distal
portion of antennae (CARLE & LOUTON, 1994); larval
wing pads non-divergent (convergent to Neolamellida and
some Cordulegastrida).
-
Taxonomy:
- [partim: "Petalinae" MUTTKOWSKI,
1910 (objectively invalid subfam. nov. since based on a
homonym type genus)]
- [partim: "Petaliini"; TILLYARD,
1917 (stat. nov.)]
- [partim: "Petaliidae"; FRASER,
1933 (stat. nov.)]
- partim: "Neopetalinae" TILLYARD
& FRASER, 1940
- [partim: "Petaliidae"; SCHMIDT,
1941]
- [partim: "Petaliinae"; ST.
QUENTIN & BEIER, 1968]
- partim: Neopetaliidae; DAVIES, 1981 (stat.
nov.)
- Neopetaliidae sensu CARLE & LOUTON,
1994 (sens. nov.)
- Neopetaliata sensu LOHMANN, 1996 (taxon
nov.)
Brachystigmata BECHLY,
1996
- Included taxa: Nannogomphidae and
Eubrachystigmata.
-
Autapomorphies:
- Wing venation: wings with relatively short
pterostigmata that cover only 1-3 complete cells
(BECHLY, 1994; convergent to some derived Neoaeshnida
and Gomphides; reversed in Libellulinae); in the
hindwing the gaff (= basal CuA before its branching) is
strongly prolonged (BECHLY, 1994; convergent to several
Aeshnidae, especially Anacina) and very straight in the
groundplan (but sigmoidal in Eurypalpidomorpha); area
between MP and CuA basally widened with more than one
row of cells (convergent to many Aeshnidae and the
gomphid Cacoides; reversed in
Chloropetaliidae, Valdicordulia and
Eurypalpidiformia, but regained in a few Macromiidae);
the terminal branch of CuAa is secondarily branched on
CuA (convergent to a few Austropetalliidae and
Aeshnidae, and Octogomphus; this character is
of course not applicable in
Nannogomphus, Araripephlebia,
and Eurypalpidiformia since CuAa is secondarily
unbraches in these taxa); RP3/4 and MA strictly
parallel up to the hind margin; area between RP2 and
IR2 distally distinctly widened, with more than one
cell row in the distal half (convergent to some
Petaluridae, Austropetaliida, and Aeshnida; reversed in
Chlorogomphida and Eurypalpida).
- Other characters: not yet known.
-
Taxonomy:
- [Brevistigmata LOHMANN, 1995 (unpublished
manuscript name according to Art. 8 IRZN; based on a
suggestion of Bechly)]
- Brachystigmata BECHLY, 1996a (taxon nov.)
- Brevistigmata LOHMANN, 1996 (taxon nov., based on a
suggestion of Bechly)
Nannogomphidae BECHLY, 1996
(Type genus: Nannogomphus HANDLIRSCH,
1906-1908)
- Included taxa: only including the
genera Nannogomphus HANDLIRSCH, 1906-1908
and Prohemeroscopus BECHLY et al.
(1998).
-
Autapomorphies:
- Wing venation: forewing ax1 shifted basal of
the level of the distal angle of the discoidal triangle
(convergent to Paneurypalpidomorpha); in both pairs of
wings ax1 and ax2 are relatively close together with
not more than one secondary antenodal crossvein between
them (convergent to Paneurypalpidomorpha); .
- Other characters: not yet known.
-
Taxonomy:
- Nannogomphidae BECHLY, 1996a (fam. nov.)
Comment: there are no strong synapomorphies known for
Nannogomphus bavaricus,
Prohemeroscopus jurassicus, and
Prohemeroscopus ? kuehnapfeli, but all three species
belong to the same grade of Brachystigmata (basal of
Eubrachystigmata), and Nannogomphus exactly
corresponds to the wing venation that would have to be
expected from a miniaturized relative of
Prohemeroscopus.
The following characters are autapomorphies of
Prohemeroscopus jurassicus: the forewing
subdiscoidal triangle is widened with a curved or angled
posterior margin (convergent to Juracorduliidae,
Paneurypalpida, Petalurida, and some Gomphides).
The following characters are autapomorphies of
Nannogomphus bavaricus: very small body size;
hindwing CuAa secondarily without posterior branches; there
are no antesubnodal crossveins present in the hindwing,
between RA and RP, distal of the arculus and basal of the
subnodus; anal loop slightly reduced in size and with only
four cells; pterostigma further shortened, only 1-2 cells
long (convergent to Juracorduliidae and
Eurypalpidiformia); discoidal triangles unicellular in both
pairs of wings (convergent to Hemeroscopidae and
Paneurypalpidomorpha). For a redescription of the holotype of
Nannogomphus bavaricus and discussion of its
phylogenetic position see BECHLY & NEL &
MARTÍNEZ-DELCLÒS, 1996. Although
Nannogomphus without doubt belongs to
Brachystigmata, its few derived similarities with Eurypalpida
(e.g. unbranched CuAa) rather seem to be convergences due to
the small size of Nannogomphus.
Eubrachystigmata
BECHLY, 2003e
- Included taxa: Hemeroscopidae and
Neobrachystigmata.
-
Autapomorphies:
- Wing venation: the hindwing CuAa is more
distinctly curved towards the hind margin, and thus
further shortened with less than five posterior
branches.
- Other characters: head with two high frontal
spines (convergent to Austroaeschna atrata and
the males of Nasiaeschna pentacantha) (FLECK,
1996; BECHLY et al., 1998).
-
Taxonomy:
- Eubrachystigmata BECHLY, 2003e (taxon nov.)
Hemeroscopidae PRITYKINA, 1977
(Type genus: Hemeroscopus PRITYKINA,
1977.)
- Included taxa: only including the type
species Hemeroscopus baissicus PRITYKINA,
1977, and according to NEL et al. (in prep.)
most probably also Huaxiagomphus
taushanense (HONG, 1982) that was totally incorrectly
figured in the drawing of the original description (NEL
et al., in prep.).
-
Autapomorphies:
- Wing venation: discoidal triangles of
similar elongate shape in both pairs of wings (FRASER,
1957; BECHLY, 1994), correlated with a secondarily less
distinct pseudo-anal vein PsA and subdiscoidal triangle
(convergent to Cordulegastrida and Neopetaliidae);
discoidal triangles unicellular in both pairs of wings
(convergent to Nannogomphus and
Paneurypalpidomorpha); only 2-4 secondary antenodal
crossveins present between the two primary antenodal
brackets ax1 and ax2; anal loop transversely elongated
and at least 8 cells large (convergent to Aeshnoidea,
Chlorogomphoidea, and Eurypalpida); presence of a
weakly defined Rspl in both pairs of wings (doubtful in
Huaxiagomphus); pterostigmal brace vein
reduced (convergent to Cordulegastrida, Chlorogomphida,
Valdicordulioidea, Eocordulia,
and some Eurypalpida).
- Other characters: not yet known.
-
Taxonomy:
- Hemeroscopidae PRITYKINA, 1977 (fam. nov.)
- Hemeroscopidae sensu BECHLY et
al., 1998
Comment: BECHLY et al. (1998) and BECHLY (1998d)
suspected that the alleged larvae of Hemeroscopidae
most probably represent larval Aeschnidiidae, just
like Sonidae (larvae) with which they should be most
closely related. The alleged libelluloid-like larval mask and
gizzard described by PRITYKINA (1977) was considered by these
authors as fragments of another type of larvae. However, HUANG
& NEL (2001) could recently describe fossil dragonfly
larvae that clearly belong to the alleged hemeroscopid larval
type, and which indeed do possess a spoon shaped mask. Since
these larvae are found together with numerous adult
Hemeroscopidae, it is well possible that they represent
hemeroscopid larvae indeed. Anyway, these larvae do neither seem
to be related to the sonid larvae, nor to the true aeschnidiid larvae.
Neobrachystigmata
BECHLY, 2003e
- Included taxa: Chlorogomphida and
Paneurypalpidomorpha.
-
Autapomorphies:
- Wing venation: arculus not distinctly angled
but more or less straight (convergent to many
gomphids); posterior part (crossvein) of arculus
distinctly shorter than anterior part [RP & MA]
(BECHLY, 1994; CARLE, 1995; dubious in
Araripechlorogomphidae); hindwing MP distinctly curved
towards the hind margin and thus somewhat shortened,
ending basal of the level of the nodus (LOHMANN,
1996).
- Other characters: males with
characteristical derived type of peg-like setae
(tumidotrichae) on the meso- and metatibiae (LOHMANN,
1995, 1996; only retained in some Chlorogomphida and
Synthemistidae); male tibial keels more than 1/3 length
of protibiae and more than 1/5 length of meso- and
metatibiae (CARLE & LOUTON, 1994; CARLE, 1995);
larval gizzard with inner denticles of dorsal lobes
directed medially (CARLE, 1995); larval rectal gills of
the lamellate duplex type (TILLYARD, 1917; LOHMANN,
1995, 1996); ligula of the male secondary genitalia
without longitudinal keel (SCHMIDT, 1916); second
segment of male vesicula spermalis only basally curved
or not curved at all, and rectangular to segments 3 and
4 (LOHMANN, 1996); adult males with femora of hind legs
thickened and supplied with irregularly dispersed
spines (LOHMANN, 1996).
-
Taxonomy:
- Neobrachystigmata BECHLY, 2003e (taxon nov.)
Chlorogomphida BECHLY,
1996
- Included taxa: Araripechlorogomphidae
and Chlorogomphoidea.
-
Autapomorphies:
- Wing venation: hypertriangles much longer
than discoidal triangles in both pairs of wings
(correlated with the following character); discoidal
triangle more transverse in the hindwing; typical shape
of the subdiscoidal triangle in the hindwing which is
distinctly slanted towards the hind margin (correlated
with the transverse shape of the discoidal triangle),
basally dilated, but distally abruptly narrowed (CARLE
& LOUTON, 1994; CARLE, 1995); pterostigmal brace
vein reduced (convergent to Cordulegastrida,
Hemeroscopidae, Valdicordulioidea,
Eocordulia, and some Eurypalpida) (BECHLY,
1994; CARLE, 1995; contra LOHMANN, 1996); anal
loop longitudinally elongated and broad (at least 7-9
cells large) and of characteristic pentagonal shape;
area between RP2 and IR2 not distinctly widened
distally (reversal; convergent to Eurypalpida).
- Other characters: not yet known.
-
Taxonomy:
- Chlorogomphida BECHLY, 1996a (taxon nov.)
Araripechlorogomphidae BECHLY & UEDA, 2002
(Type genus: Araripechlorogomphus BECHLY & UEDA, 2002
- Included taxa: only including the type
species from the Lower Cretaceous of Brazil.
-
Autapomorphies:
- Wing venation: hindwing discoidal triangle
unicellular (convergent to
Nannogomphus, Hemeroscopidae, and
Paneurypalpidomorpha).
- Other characters: not yet known.
-
Taxonomy:
- Araripechlorogomphidae BECHLY & UEDA, 2002 (fam. nov.)
Comment: the only known specimen is also discussed and
figured in BECHLY (1998d), and represents the first fossil
record of chlorogomphids, and the first New World record,
too.
Chlorogomphoidea
NEEDHAM, 1903
(Type genus: Chlorogomphus SELYS, 1854.)
- Included taxa: Chloropetaliidae
and Chlorogomphidae.
-
Autapomorphies:
- Wing venation: sectors of arculus
approximate (convergent to Eurypalpida and some
Araripelibellulidae); basal accessory antenodal
crossveins present in the subcostal space between ax0
and ax1 (FRASER, 1957; no groundplan character
according to CARLE, 1995); hindwing discoidal triangle
divided into 3-6 cells (FRASER, 1957 no groundplan
character according to CARLE, 1995); wings secondarily
with crossveins immediately basal of the subnodus
("cordulegastrid gap" reduced) (BECHLY,
1994); median space of wings is traversed by one or
more crossveins (FRASER, 1957; CARLE, 1995; BECHLY,
1994); hypertriangles traversed by several crossveins
in both pairs of wings; cubital cell (between
CuP-crossing and PsA) divided by accessory cubito-anal
crossveins (convergent to Synthemistidae, Macromiidae,
Idomacromiidae, and some Idionychidae and
Libellulidae); male hindwing with a less distinct anal
angle (LOHMANN, 1995, 1996).
- Other characters: male hamuli anteriores
elongate-triangular and with incurvate apices (CARLE,
1995); males with a stout lateral interhamular spur
posterior to the hamuli anteriores (CARLE, 1995),
spur-like elongated lateral lobes of the terminal
segment of the vesicula spermalis (SCHMIDT, 1916);
female ovipositor extremely reduced (progonapophyses
vestigial as valvula vulvae, mesogonapophyses
completely reduced and metagonapophyses vestigial;
convergent to Gomphides and Trichodopalpida) (LOHMANN,
1995, 1996); larval epiproct needle-like apically
(CARLE, 1995).
-
Taxonomy:
- [légion Chlorogomphus SELYS, 1854
(not available as family-group taxon according to Art.
11f IRZN)]
- [partim: "Gomphines"; SELYS,
1854]
- [partim: "Fissilabres" SELYS,
1854 (taxon nov.)]
- [partim: "Gomphinae"; SELYS in
HAGEN, 1858]
- [Nervulibases SELYS in HAGEN, 1858 (taxon
nov.)]
- [partim: "Dynamophlebiae"
BUCHECKER, 1876 (taxon nov.)]
- [partim: "Cordulegasterina";
Kirby, 1890]
- Chlorogomphinae NEEDHAM, 1903 (subfam. nov.)
sensu auct. (except CARLE, 1995 and BECHLY,
1996a)
- [partim: "Fissilabioidea"
FRASER, 1929, 1933 (taxon nov.)]
- Chlorogomphinae sensu auct. (except CARLE,
1995 and BECHLY, 1996a)
- Chlorogomphidae sensu auct. (except
BECHLY, 1996a)
- Chlorogomphoidea sensu BECHLY, 1996a
(stat. nov.) (nom. transl. ex Chlorogomphinae NEEDHAM,
1903)
- [Chlorogomphata LOHMANN, 1996 (taxon nov.)]
Chloropetaliidae
CARLE, 1995
(Type genus: Chloropetalia CARLE, 1995.)
- Included taxa: only including the type
genus Chloropetalia CARLE, 1995.
-
Autapomorphies:
- Wing venation: see CARLE (1995).
- Other characters: see CARLE (1995).
-
Taxonomy:
- Chloropetaliinae CARLE, 1995 (subfam. nov.)
- Chloropetaliini CARLE, 1995 (trib. nov.)
- Chloropetaliidae sensu BECHLY, 1996a
(stat. nov.)
Chlorogomphidae
NEEDHAM, 1903
(Type genus: Chlorogomphus SELYS, 1854.)
- Included taxa: Eorogomphinae and Chlorogomphinae.
-
Autapomorphies:
- Wing venation: see CARLE (1995).
- Other characters: see CARLE (1995).
-
Taxonomy:
- Chlorogomphidae CARLE, 1982 (stat.nov.) (nom.
transl. ex Chlorogomphinae NEEDHAM, 1903)
- Chlorogomphidae; CARLE, 1986
- Chlorogomphinae sensu CARLE, 1995 (sens.
nov.)
- Chlorogomphidae; LOHMANN, 1992
- Chlorogomphidae sensu BECHLY, 1996a (sens.
nov.)
Eorogomphinae CARLE,
1995
(Type genus: Eorogomphus CARLE, 1995.)
- Included taxa: only including the type
genus Eorogomphus CARLE, 1995.
-
Autapomorphies:
- Wing venation: see CARLE (1995).
- Other characters: see CARLE (1995).
-
Taxonomy:
- Eorogomphini CARLE, 1995 (trib. nov.)
- Eorogomphinae sensu BECHLY, 1996a (stat.
nov.)
Chlorogomphinae
NEEDHAM, 1903
(Type genus: Chlorogomphus SELYS, 1854.)
- Included taxa: Sinorogomphini and
Chlorogomphini.
-
Autapomorphies:
- Wing venation: see CARLE (1995).
- Other characters: see CARLE (1995).
-
Taxonomy:
- Chlorogomphinae NEEDHAM, 1903 (subfam. nov.)
- Chlorogomphinae; TILLYARD, 1917
- Chlorogomphinae; FRASER, 1933
- Chlorogomphinae; CARLE, 1995 (sens. nov.)
- Chlorogomphinae sensu BECHLY, 1996a (sens.
nov.)
Sinorogomphini CARLE,
1995
(Type genus: Sinorogomphus CARLE, 1995.)
- Included taxa: only including the type
genus Sinorogomphus CARLE, 1995.
-
Autapomorphies:
- Wing venation: see CARLE (1995).
- Other characters: see CARLE (1995).
-
Taxonomy:
- Sinorogomphini CARLE, 1995 (trib. nov.)
Chlorogomphini NEEDHAM,
1903
(Type genus: Chlorogomphus SELYS, 1854.)
- Included taxa: including the genera
Chlorogomphus SELYS, 1854, Orogomphus
SELYS, 1878, Neorogomphus CARLE, 1995,
Indorogomphus CARLE, 1995, and
Aurorachlorus CARLE, 1995.
-
Autapomorphies:
- Wing venation: see CARLE (1995).
- Other characters: see CARLE (1995).
-
Taxonomy:
- Chlorogomphini CARLE, 1995 (stat. et sens. nov.)
(nom. transl. ex Chlorogomphinae NEEDHAM, 1903)
- Chlorogomphini sensu BECHLY, 1996a
Paneurypalpidomorpha
BECHLY, 2003e
- Included taxa: Juracorduliidae
and Eurypalpidomorpha.
-
Autapomorphies:
- Wing venation: anterior margin of
hypertriangle distinctly convex, especially in the
hindwings, because of a basally arched MA (BECHLY,
1994; CARLE & LOUTON, 1994; CARLE, 1995); forewing
ax1 shifted basal of the level of the distal angle of
the discoidal triangle (convergent to
Nannogomphidae); in both pairs of wings ax1 and ax2 are
relatively close together with not more than one
secondary antenodal crossvein between them (BECHLY,
1994; convergent to Nannogomphidae); lestine
oblique vein only 1-2 cells distad of the subnodus in
both pairs of wings; forewing discoidal triangle more
or less transverse instead of elongate (reversal);
discoidal triangles unicellular in both pairs of wings
(convergent to Nannogomphus and
Hemeroscopidae; reversed in the hindwing of
Araripephlebiidae and in some Eurypalpida); basal part of postsubnodal area
free of crossveins ("libellulid gap") (NEL
& MARTÍNEZ-DELCLÒS, 1993; BECHLY,
1994).
- Other characters: not yet known.
-
Taxonomy:
- Paneurypalpidomorpha BECHLY, 2003e (taxon nov.)
Juracorduliidae BECHLY, 2003e
(Type genus: Juracordulia BECHLY,
1998g)
- Included taxa: only including the type
genus Juracordulia BECHLY, 1998g.
-
Autapomorphies:
- Wing venation: pterostigma further
shortened, only 1-2 cells long (convergent to
Nannogomphidae and Eurypalpidiformia); the forewing
subdiscoidal triangle is widened with a curved or
angled posterior margin (convergent to
Prohemeroscopus jurassicus, Paneurypalpida,
Petalurida, and some Gomphides); unique shape of the
transversely elongate anal loop; postdiscoidal area
very narrow and strongly bent in both pairs of wings;
RP2 and IR2 more strongly divergent; RP3/4 and MA
secondarily not undulating in both pairs of wings
(convergent to Paneurypalpida).
- Other characters: not yet known.
-
Taxonomy:
- Juracorduliidae BECHLY, 2003e (fam. nov.)
Eurypalpidomorpha
BECHLY, 2003e
- Included taxa: Valdicordulioidea
and Eurypalpidiformia.
-
Autapomorphies:
- Wing venation: in the hindwing the elongated
gaff (= basal CuA before its branching) is sigmoidally
curved; CuAb shifted very far distally, and CuAa with
only one or two posterior branches.
- Other characters: not yet known.
-
Taxonomy:
- Eurypalpidomorpha BECHLY, 2003e (taxon nov.)
Valdicordulioidea BECHLY, 1996
(Type genus: Valdicordulia JARZEMBOWSKI
& NEL, 1996)
- Included taxa: Valdicorduliidae
and Araripephlebiidae.
-
Autapomorphies:
- Wing venation: pterostigmal brace vein
reduced (convergent to Cordulegastrida,
Hemeroscopidae, Chlorogomphida,
Eocordulia, and some Eurypalpida); hindwing
subdiscoidal triangle more strongly transverse.
- Other characters: not yet known.
-
Taxonomy:
- Valdicordulioidea sensu BECHLY, 2003e (stat.
nov.) (nom. transl. ex Valdicorduliidae BECHLY,
1996)
Comment: besides the two mentioned weak synapomorphies,
there is a very large phenetic similarity between
Valdicorduliidae and Araripephlebiidae, which of
course includes numerous symplesiomorphies, but probably also
some more putative synapomorphies.
Valdicorduliidae BECHLY, 1996
(Type genus: Valdicordulia JARZEMBOWSKI
& NEL, 1996)
- Included taxa: only including the type
species Valdicordulia wellsorum
JARZEMBOWSKI & NEL, 1996.
-
Autapomorphies:
- Wing venation: characteristical shape of the
anal loop.
- Other characters: not yet known.
-
Taxonomy:
- Valdicorduliidae BECHLY, 1996a (fam. nov.)
Comment: contrary to the original description certainly
not a member of crown-group Eurypalpida as is clearly
demonstrated by the following plesiomorphies: a distal
furcation of CuAa is retained; all secondary antenodal
crossveins non-aligned; pseudo-anal vein PsA still distinctly
developed in the hindwing; area between RP2 and IR2 distally
still widened.
Araripephlebiidae BECHLY, 1998d
(Type genus: Araripephlebia BECHLY,
1998d.)
- Included taxa: only including the type
species Araripephlebia mirabilis BECHLY,
1998d.
-
Autapomorphies:
- Wing venation: forewing with ax1 shifted
basal of the level of the basal side of the discoidal
triangle (convergent to Cratocordulia
and Eurypalpida); a unique venation in the cubito-anal
area with a long concave secondary vein (apparently not
a midrib of a so-called "italian" anal loop)
parallel to the totally unbranched CuA (even CuAb is
suppressed); distal half of MA distinctly zigzagged in
the hindwings; discoidal triangle of hindwing more
transverse than in forewing (convergence to
"higher" Chlorogomphoidea;
contraBECHLY, 1998d), and secondarily
traversed by a longitudinal cossvein.
- Other characters: not yet known.
-
Taxonomy:
- Araripephlebiidae BECHLY, 1998d (fam. nov.)
Comment: BECHLY (1998d) regarded Araripephlebiidae
as more closely related to Chlorogomphoidea mainly because of
the hindwing discoidal triangle that is more transverse than
the forewing discoidal triangle. However, the latter
character is hardly developed in Chloropetaliidae and basal
genera of Chlorogomphidae (see CARLE, 1995) and thus may not
belong to the groundplan of Chlorogomphoidea.
Eurypalpidiformia
BECHLY, 2003e
- Included taxa: Eocorduliidae and Paneurypalpida.
-
Autapomorphies:
- Wing venation: pterostigma further
shortened, only 1-2 cells long (convergent to
Nannogomphidae and Juracorduliidae; reversed in
Libellulinae).
- Other characters: not yet known.
-
Taxonomy:
- Eurypalpidiformia BECHLY, 2003e (taxon nov.)
Eocorduliidae BECHLY, 1996
(Type genus: Eocordulia PRITYKINA,
1986)
- Included taxa: only including the type
species Eocordulia cretacea PRITYKINA,
1986.
-
Autapomorphies:
- Wing venation: pterostigmal brace vein
reduced (convergent to Cordulegastrida,
Hemeroscopidae, Chlorogomphida,
Valdicordulioidea, and some Eurypalpida); distinct Rspl
and Mspl present, closely parallel to IR2 and MA
respectively (convergent to many Eurypalpida,
Aeshnoptera, and Aeschnidiidae); more than one
row of cells in the distal half of the area between
RP3/4 and MA (reversal).
- Other characters: not yet known (the
described abdominal fragment with very long anal
appendages was most doubtfully attributed to this taxon
without any evidence by PRITYKINA, 1986).
-
Taxonomy:
- Eocorduliidae BECHLY, 1996a (fam. nov.)
Paneurypalpida BECHLY,
1996
- Included taxa: Araripelibellulidae
(= Condaliidae) and Eurypalpida.
-
Autapomorphies:
- Wing venation: male hindwings with anal
triangle only divided into two cells by a longitudinal
crossvein or even unicellular; the forewing
subdiscoidal triangle is widened with a curved or
angled posterior margin (convergent to
Prohemeroscopus jurassicus,
Juracorduliidae, Petalurida, and some Gomphides);
pseudo-anal vein PsA and subdiscoidal triangle of
hindwings more reduced than in the groundplan of
Cavilabiata (strong tendency towards complete reduction
of the basal side PsA of the hindwing subdiscoidal
triangle; convergent to Araripelibellulinae); the
subdiscoidal vein (basal part of CuA that is aligned
with the distal side MAb of the discoidal triangle) is
reduced in the hindwings (NEL &
MARTÍNEZ-DELCLÒS, 1993; BECHLY, 1994);
the hindwing CuA is further shortened with only one
distinct dichotomic branching into CuAa and CuAb
(BECHLY, 1994); RP3/4 and MA secondarily not undulating
(convergent to Juracorduliidae), at least in the
hindwing; antenodal crossveins more or less aligned, at
least the hindwings with more than two aligned and
bracket-like antenodal crossveins (NEL &
MARTÍNEZ-DELCLÒS, 1993; BECHLY, 1994;
CARLE & LOUTON, 1994; CARLE, 1995), convergent to a
few aeshnid genera ( Gomphaeschnaoides
and Telephlebia) and the fossil gomphid
Cordulagomphus fenestratus (erroneously also
figured for Prostenophlebia in NEL
et al., 1993).
- Other characters: not yet known.
-
Taxonomy:
- Paneurypalpida BECHLY, 1996a (taxon nov.)
- [Pan-Palpolabiata sensu LOHMANN, 1996
(informal name)]
Araripelibellulidae BECHLY, 1996
(Type genus: Araripelibellula NEL &
PAICHELER, 1994)
- Included taxa: Mesocorduliinae
and Araripelibellulinae.
-
Autapomorphies:
- Wing venation: no secondary antenodal
crossveins between ax1 and ax2, and only two or three
secondary antenodal crossveins distal of ax2; all
antenodal crossveins strictly aligned (but the two
primaries ax1 and ax2 are still stronger than the
secondaries); only one or two antesubnodal crossveins;
forewing with only about four postnodal crossveins;
anterior side of hindwing hypertriangle very strongly
curved, and posterior side at leasr slightly curved,
too; postdiscoidal area very narrow in the forewing
(distal part even narrower than basal part); anal loop
very elongate.
- Other characters: not yet known.
-
Taxonomy:
- Araripelibellulidae BECHLY, 1996a (fam. nov.)
- Condaliidae BECHLY, 1996a (fam. nov. based on the
type genus Condalia) (jun. subj.
syn.)
- Condaliidae LOHMANN, 1996 (fam. nov.) (jun. obj.
syn. of Condaliidae Bechly)
Comment: LOHMANN (1996) included the Condaliidae,
Eocorduliidae, and Araripelibellulidae (all
sensu BECHLY, 1996a) in a single family
Condaliidae sensu Lohmann, and furthermore regards
the referring three family group taxa of BECHLY (1996a) as
nomina nuda. Since these taxa are all monotypic and the
original publication includes a statement "fam.
nov.", a designation of a type genus and a reference to
the description of the type genus, all three taxa are valid
according to Art. 13 IRZN. LOHMANN (1996) regarded the
elongated anal loop as a putative synapomorphy of his family
Condaliidae with his higher taxon Firmonervata (=
Neolamellida), but this character is unknown for
Condalia, and furthermore represents a very
homoplastic character anyway. The only other alleged
synapomorphy with Firmonervata (antenodal crossveins aligned)
is absent in Eocordulia, and is very
homoplastic, too. The retention of several plesiomorphies
(forewing arculus angled; bases of RP and MA separated at
arculus; a more distal position of ax2 in the forewing; anal
loop small with only two cells; pterostigmal brace aligned
with basal side of pterostigma) excludes a position of
Araripelibellula within crown-group Eurypalpida. The
fact that Cratocordulia shows the derived
states of these characters has to be regarded as convergence
to crown-group Eurypalpida, since this genus shares all
listed synapomorphies with the other
Araripelibellulidae. Eocordulia still has a
three-celled male anal triangle, while
Araripelibellula shares with crown-group Eurypalpida
the derived two-celled anal triangle as putative
synapomorphy. Consequently, Eocordulia does
not belong to Araripelibellulidae and is therefore
here retained as separate family with a more basal position
in the stemgroup of Eurypalpida.
Mesocorduliinae BECHLY, 2003e
(Type genus: Mesocordulia DONG &
ZIGUANG, 1996)
- Included taxa: only including the type
species Mesocordulia boreala DONG &
ZIGUANG, 1996.
-
Autapomorphies:
- Wing venation: not yet known.
- Other characters: not yet known.
-
Taxonomy:
- Mesocorduliinae BECHLY, 2003e (subfam. nov.)
Araripelibellulinae BECHLY, 1996
(Type genus: Araripelibellula NEL &
PAICHELER, 1994)
- Included taxa: only including the type
species Araripelibellula martinesnetoi NEL
& PAICHELER, 1994, as well as
Araripelibellula anglicana NEL et al. (in prep.), Cratocordulia borschukewitzi
BECHLY, 1998d, Cretaneophya strevensi
JARZEMBOWSKI & NEL, 1996, and Condalia
woottoni WHALLEY & JARZEMBOWSKI, 1985.
-
Autapomorphies:
- Wing venation: anterior side of hindwing
discoidal triangle more distinctly curved (convergent
to the extant species Neophya rutherfordi
SELYS, 1881; postdiscoidal area with only a
single row of cells in the basal half; area between RP2
and IR2 very narrow near the lestine oblique vein
(apomorphy), but more distally distinctly widened
(plesiomorphy ?); anal loop very narrow with only a
single row of 2-4 cells (reduction); PsA suppressed in
the hindwing (convergent to many crown-group
Eurypalpida).
- Other characters: not yet known.
-
Taxonomy:
- Araripelibellulinae BECHLY, 2003e (stat. nov.) (nom.
transl. ex Araripelibellulidae BECHLY, 1996a)
Eurypalpida BECHLY,
1996
- Included taxa: Synthemistidae and
Neolamellida.
-
Autapomorphies:
- Wing venation: sectors of arculus
approximate (convergent to Chlorogomphida and some
Araripelibellulidae), diverging from one point
or even shortly fused basally (BECHLY, 1994; CARLE
& LOUTON, 1994; CARLE, 1995); posterior part of
arculus further shortened, and arculus strictly
straight in both pairs of wings; pterostigmal brace
vein shifted distally beneath the pterostigma, or
reduced (convergent to Cordulegastrida,
Hemeroscopidae, Chlorogomphida,
Valdicordulioidea, and Eocorduliidae); ax2
situated distinctly basal of the discoidal triangle in
forewings; dorsal arcular bracket reduced (convergent
to Polythoridae, Perilestidae and Lestidae); the
forewing pseudo-anal vein PsA is hypertrophied; anal
loop elongate and at least 8 cells large (convergent to
Aeshnoidea, Hemeroscopidae, and Chlorogomphida);
area between RP2 and IR2 not distinctly widened
distally (reversal; convergent to Chlorogomphida);
strong tendency towards coloured wings (convergent to
Eucaloptera).
- Other characters: adult labial
"palps" with vestigial movable end hook and
vestigial apical spine (CALVERT, 1893; CARLE &
LOUTON, 1994; CARLE, 1995); adult labium with strongly
enlarged and contiguous "palps" and a small
and short ligula which is wider than long and without
medio-apical cleft (fissum) (CALVERT, 1893; BUTLER,
1904; ST. QUENTIN, 1974; CARLE & LOUTON, 1994;
CARLE, 1995); adult intraocellar lobe with shelf-like
overhang of medial ocellus (CARLE, 1995); adult
compound eyes medio-dorsally contiguous, correlated
with a triangular antero-dorsal surface of the occiput
("occipital triangle") (TILLYARD, 1917; NEL
& MARTÍNEZ-DELCLÒS, 1993); compound
eyes with a small sinuous projection ("eye
tubercle") at the medio-lateral hind margin; male
hamuli anteriores short and erect or obsolete (CARLE
& LOUTON, 1994; CARLE, 1995); male "penile
prepuce" obsolete (CARLE, 1995; convergent to
Neoaeshnida); male vesicula spermalis in the groundplan
of "synthemistid type", with derived
processus dorsales of the third segment and horn-like
elongated median lobes, without an incus at the first
segment and with the "buccula spermalis"
turned outside in (LOHMANN, 1996); complete reduction
of the dorsal suture (vestige of the spermal furrow) on
the third segment of the male vesicula spermalis
(LOHMANN, 1996; convergent to Gomphides); male bulbus
spermalis of the terminal segment of the vesicula
spermalis is spiral-like invaginated in rest (LOHMANN,
1995); the serration of inner margin of the lateral
lobes ("palps") of the larval prehensile mask
is secondarily smaller and more regular (CARLE, 1995),
either with few strong scallops (groundplan), or with
many small and rounded dagger-like teeth (derived
state) (LOHMANN, 1995); larval prementum without median
cleft and without bifid apex, but with entire anterior
margin that is either smooth, or triangular protruded
(CARLE, 1995; an antero-median protrusion is a derived
groundplan character which is reduced in Valvulida
according to LOHMANN, 1996); larval gizzard with a
large subapical tooth ("bifid tooth") on the
two ventral lobes (FRASER, 1957; CARLE, 1995); dorsal
teeth of larval gizzard with postero-medial edge
inclined medially (CARLE, 1995; contra
LOHMANN, 1995 who considers this character as an
autapomorphy of Neolamellida); egg in the groundplan
with a hyperboloid micropylar cone and only 2 micropyle
openings (BECNEL & DUNKLE, 1990; MAY, 1995a; often
3-4 openings in Gomphomacromia); larval
mesosternum with paracoxal lobes (CARLE, 1995); larval
metasternum with anterior and posterior transverse
sulci contiguous (CARLE, 1995); larval transverse
abdominal muscle 6 attached to flat-elongate
antero-lateral apodemes of sternum 6 (CARLE, 1995);
larvae at least somewhat shorter and wider than in the
groundplan of Brachystigmata; larval mandibles without
molar crest (WATSON, 1956; NEL &
MARTÍNEZ-DELCLÒS, 1993); abdomen of adult
males with a longitudinal carina on the dorsum
(middorsal ridge) at least on segments 7-8
(contra CARLE & LOUTON, 1994; CARLE, 1995;
LOHMANN, 1995, 1996); male abdominal tergum 1 with
ventro-lateral hamule-like projections (CARLE, 1995;
LOHMANN, 1996; reversed in Valvulida according to
LOHMANN, 1996); larval eyes rather small; adults in the
groundplan at least with a slight metallic gloss on the
dark parts of the thorax.
-
Taxonomy:
- [Libellulida sensu LEACH, 1815]
- [Libellulidae sensu BURMEISTER,
1839]
- [Libelluloides sensu SELYS, 1840]
- [Libellulidae sensu SELYS, 1850]
- [Libellulina sensu HAGEN, 1861]
- [Libellulida sensu HAECKEL, 1896]
- [Libellulii sensu ACLOQUE, 1897]
- [Libellulidos sensu NAVAS, 1903]
- [Libellulidae sensu NEEDHAM, 1903]
- [Libellulodea sensu JACOBSON &
BIANCHI, 1905]
- [Libelluloidea sensu FRASER, 1957]
- Eurypalpida BECHLY, 1996a (taxon nov.)
- Palpolabiata LOHMANN, 1996 (taxon nov.)
Comment: LOHMANN (1995, 1996) cites the character
"females in the groundplan with only a single
spermatheca" as potential autapomorphy of Eurypalpida,
but since Trichodopalpida have paired spermathecae (compare
MILLER, 1990) this derived state most probably represents a
convergence of Synthemistidae and
Gomphomacromia.
Synthemistidae
TILLYARD, 1911
(Type genus: Synthemis SELYS, 1870.)
- Included taxa: Synthemiopsinae
and Synthemistinae.
-
Autapomorphies:
- Wing venation: sectors of arculus stalked
(CARLE, 1995; convergent to Macromiidae, Idionychidae,
Neophyinae and Libellulidae); median space of wings
with crossveins (BECHLY, 1994; CARLE & LOUTON,
1994; CARLE, 1995; convergent to Chlorogomphoidea,
contra CARLE, 1995); in the hindwings weak and
often non-aligned antenodal crossveins alternate with
3-5 aligned and enforced antenodal brackets (FRASER,
1942, 1952, 1957; BECHLY, 1994; CARLE, 1995; maybe a
plesiomorphic state that is preceding the alignment and
enforcement of all antenodal crossveins); a basal
accessory antenodal present in the subcostal space
between ax0 and ax1; cubital cell (between CuP-crossing
and PsA) divided by accessory cubito-anal crossveins
(convergent to Chlorogomphoidea, Macromiidae,
Idomacromiidae, and some Idionychidae and
Libellulidae).
- Other characters: male abdomen attenuate
(4th abdominal segment typically about 5 times as long
as high) (CARLE, 1995; plesiomorphic absent in the most
basal genus Synthemiopsis); larval prementum
with a median trigonal protrusion at the anterior
margin (LOHMANN, 1995; might also be a derived
groundplan character of Eurypalpida which resulted from
a fusion of the bifid apex that is present in
non-eurypalpid Cavilabiata); eggs with a hyperboloid
micropylar projection and apical recessed micropyle
openings (TRUEMAN, 1991); males with elongated
middorsal abdominal carina from segment 2-8 (LOHMANN,
1995; contra LOHMANN, 1996); male epiproct
unifurcate (LOHMANN, 1996; still regarded as potential
autapomorphy of Eurypalpida in LOHMANN, 1995).
-
Taxonomy:
- Synthemina sensu TILLYARD, 1911 (nom.
imperf.)
- Synthemini sensu TILLYARD, 1917 (trib.
nov.) (nom. imperf.)
- Syntheminae sensu TILLYARD, 1926 (stat.
nov.) (nom. imperf.)
- Synthemidae sensu FRASER, 1954 (stat.
nov.)
- Synthemidae sensu FRASER, 1957 (nom.
imperf.)
- Synthemistidae sensu THEISCHINGER, 1977
(nom. correct.)
- Synthemistidae sensu DAVIES, 1981
- Synthemistinae sensu DAVIES & TOBIN,
1985
- Synthemistidae sensu BECHLY, 1996a
- [Synthemistata sensu LOHMANN, 1996 (taxon
nov.)]
Synthemiopsinae CARLE,
1995
(Type genus: Synthemiopsis TILLYARD, 1917.)
- Included taxa: only including the type
genus Synthemiopsis TILLYARD, 1917.
-
Autapomorphies:
- Wing venation: see CARLE (1995).
- Other characters: see CARLE (1995).
-
Taxonomy:
- Synthemiopsini CARLE, 1995 (trib. nov.)
- Synthemiopsinae sensu BECHLY, 1996a (stat.
nov.)
Synthemistinae
TILLYARD, 1911
(Type genus: Synthemis SELYS, 1870.)
- Included taxa: Palaeosynthemistini
and Synthemistini.
-
Autapomorphies:
- Wing venation: see CARLE (1995).
- Other characters: see CARLE (1995).
-
Taxonomy:
- Syntheminae; TILLYARD, 1926 (stat. nov.) (nom.
transl. ex Synthemina TILLYARD, 1911) (nom.
imperf.)
- Synthemistinae; DAVIES & TOBIN, 1985
- Synthemistinae sensu BECHLY, 1996a
Palaeosynthemistini
CARLE, 1995
(Type genus: Palaeosynthemis FÖRSTER,
1903.)
- Included taxa: only including the type
genus Palaeosynthemis FÖRSTER, 1903.
-
Autapomorphies:
- Wing venation: see CARLE (1995).
- Other characters: see CARLE (1995).
-
Taxonomy:
- Palaeosynthemistini CARLE, 1995 (trib. nov.)
Synthemistini TILLYARD,
1911
(Type genus: Synthemis SELYS, 1870.)
- Included taxa: Eusynthemistina
and Synthemistina.
-
Autapomorphies:
- Wing venation: see CARLE (1995).
- Other characters: see CARLE (1995).
-
Taxonomy:
- Synthemini TILLYARD, 1917 (trib. nov.)
- Synthemistini; CARLE, 1995 (sens. nov.)
- Synthemistinae BECHLY, 1996a (sens. nov.)
Eusynthemistina CARLE,
1995
(Type genus: Eusynthemis FÖRSTER, 1903.)
- Included taxa: including the genera
Eusynthemis FÖRSTER, 1903,
Choristhemis TILLYARD, 1910, and
Austrosynthemis CARLE, 1995.
-
Autapomorphies:
- Wing venation: see CARLE (1995).
- Other characters: see CARLE (1995).
-
Taxonomy:
- Eusynthemistini CARLE, 1995 (trib. nov.)
- Eusynthemistina sensu BECHLY, 1996a (stat.
nov.)
Synthemistina TILLYARD,
1911
(Type genus: Synthemis SELYS, 1870.)
- Included taxa: including the genera
Synthemis SELYS, 1870, Parasynthemis
CARLE, 1995, and Calesynthemis CARLE, 1995.
-
Autapomorphies:
- Wing venation: see CARLE (1995).
- Other characters: see CARLE (1995).
-
Taxonomy:
- Synthemistini sensu CARLE, 1995 (sens.
nov.)
- Synthemistina sensu BECHLY, 1996a (stat.
nov.) (nom. transl. ex Synthemina TILLYARD, 1911)