Psychostoechotes undulatus, Khramov, Alexander V. & Makarkin, Vladimir N., 2015

Khramov, Alexander V. & Makarkin, Vladimir N., 2015, New fossil Osmylopsychopidae (Neuroptera) from the Early / Middle Jurassic of Kyrgyzstan, Central Asia, Zootaxa 4059 (1), pp. 115-132 : 122

Psychostoechotes undulatus sp. nov.

Figs 4 , 5

Description. Forewing broad, with undulate outer, hind margins; ca. 18 mm long as preserved (estimated complete length ca. 22–23 mm); ca. 9.5 mm wide. Costal space moderately broad at proximal one thirds gradually narrowed towards apex. Subcostal veinlets closely spaced, vast majority of these forked once or twice. Costal crossveins not detected except two in apical part. Sc, R1 incompletely preserved. Subcostal space broad medially, not preserved in other parts. Distal part of space between R1, Rs narrow; no crossveins detected. Rs+MA with 31 parallel branches, all shallowly branched (most of these once forked distally, rarely simple or twice forked). Proximal part of M not preserved; proximal configuration of MA unknown. Fork of MP not preserved. MP1 strongly concave, pectinately branched; with four branches. MP2 few pectinate, with three long branches, one of these deeply forked. CuA pectinate, with seven long branches; basal-most branch twice deeply forked (i.e. with four long branches). CuP long, probably deeply dichotomously branched. Anal veins preserved fragmentarily. Trichosors present, but indistinct. Crossveins scarce, indistinct. Color pattern not preserved.

Material. Holotype PIN 2345 / 335 (part, counterpart), a nearly complete well-preserved forewing, housed in PIN.

Type locality and horizon. Kyrgyzstan: Sai-Sagul; late Early Jurassic to the early Middle Jurassic.

Etymology. From the Latin undulatus [- a, - um], undulate, in reference to the undulate hind wing margin.

Figures

FIGURE 4. Psychostoechotes undulatus gen. et sp. nov. Holotype PIN 2345 / 335. A, part. B, counterpart. Scale bars = 5 mm.

FIGURE 5. Psychostoechotes undulatus gen. et sp. nov. Forewing venation of the holotype PIN 2345 / 335. Scale bar = 5 mm.