New Palaeontinidae (Cicadomorpha) from the Triassic of Central Asia: the earliest intimidating eyespots in Hemiptera
Author
Shcherbakov, D. E.
text
Russian Entomological Journal
2022
2022-12-31
31
4
352
358
http://dx.doi.org/10.15298/rusentj.31.4.03
journal article
10.15298/rusentj.31.4.03
0132-8069
13179011
Papiliontina dracomima
Shcherbakov
,
sp.n.
Figs 1–4, 8–9, 12–13.
MATERIAL.
Holotype
PIN 2555
/2136, insect with one forewing and both hind wings spread (positive impression);
Dzhailoucho
(Madygen, northern area),
Leilek District
,
Batken Region
, SW
Kyrgyzstan
;
Madygen Formation
, Ladinian–Carnian.
DESCRIPTION. Forewing
45 mm
long,
19 mm
wide (√LW =
29.3 mm
; different length to width ratios in the
holotype
forewings of three new species are not diagnostic due to rock distortion); wingspan ~
10 cm
. At least 4 weak oblique veins in costal area; slanting postnodal
R
branch arising well beyond nodus.
R
forked 2/3 way from basal cell to nodal line. Basal cell closed with X-junction of M and CuA.
MP
stem more than twice shorter than MA stem. Nodal
m-cu
connecting
MP2
near base and CuA bifurcation. Clavus obliquely truncate at apex. Prenodal part slightly darkened, anterior margin mostly dark, postnodal part with dark apical band and ocellate spot; the eyespot with dark and inner light rings complete, and outer light ring extended up to RA; dark central part not reaching MA2 and extended posterior to
MP2
, with two light flecks at
MP1
and
MP2
. Hind wing
29 mm
long (2/3 forewing length),
22 mm
wide, costal area projecting crescent-like, anterior margin with more than ten close-set hooks before coupling lobe and deeply sinuate at lobe; anal area small, CuP and Pcu rather short; membrane light with dark narrow transverse band before midlength, broader apical band, and several radial streaks arising from inner margin of apical band. Pronotum
15 mm
wide,
6 mm
long, convex, shield-like, transverse oval with humeral angles triangularly projecting, covered with sparse transverse wrinkles. Meso- and metanotum very short, their posterior margins bisinuate with small triangular medial projections (rudimentary meso- and metascutellum). First abdominal tergites very short (1st–3rd preserved)
.
ETYMOLOGY. From Greek
drakon
(fabulous lizardlike animal) and
mimos
(imitator, actor).