First description of female of Haplosialodes liui Huang et al., 2016 (Megaloptera: Sialidae) from Cretaceous Burmese amber
Author
Liu, Xingyue
Author
Lu, Xiumei
Author
Xia, Fangyuan
Author
Wang, Bo
text
Zootaxa
2017
4254
5
593
598
journal article
33186
10.11646/zootaxa.4254.5.9
0dbad34b-5bdc-4ba3-9c6b-ee46ef7040d4
1175-5326
556315
DFCF4040-7097-43B1-BD18-841367669259
Haplosialodes liui
Huang
et al.
(
Figs. 1–3
)
Haplosialodes liui
Huang
et al.
, 2016
: 8
.
Description of female.
Body length
6.4 mm
; forewing
7.5 mm
long and
2.9 mm
wide, hind wing
6.2 mm
long and
2.4 mm
wide.
Head blackish brown. Compound eyes strongly produced. Antennae with ca. 22 segments; flagellum distinctly attenuated, densely pilose. Mouthparts with labrum about 4.0 times as wide as long and not concaved medially; mandibles distally acutely pointed.
Thorax blackish brown; pronotum with convex anterior margin and much paler on median portion. Legs blackish brown; tarsomere 4 distinctly flattened and bilobed. Wings pale brown, with dense minute setae on wing surface and veins. Forewing nearly 3.0 times as long as wide; 6–7 distinct costal crossveins present; one scp-ra present at proximal 1/ 3 of subcostal space; ScP and RA distally fused; RP 2-branched; MA 2-branched; length of MA fork about half of RP fork; three crossveins present in RA space; MP having two main branches, both branches bifurcated into equal-sized forks; CuA 2-branched. Hind wing poorly preserved; RP, MA, and anterior branch of MP bifurcated.
Abdomen brown, but integument of abdominal segment 9 yellow. Sternum 7 broad, about 2.5 times as wide as long; posterior margin nearly truncate, posterolateral corners rounded. Gonocoxite 8 rather short, ~1/4× length of sternum 7, but transversely wide and slightly arched; putative gonapophyses 8 paired and sclerotized; a feebly sclerotized subtriangular lobe present posteriad gonapophyses 8.