Osmylopsychoides anteromedialis sp. nov.

Fig. 3

Description. Forewing broad, ca. 20 mm long as preserved (along R1; estimated complete length ca. 25–28 mm); ca. 14.5 mm wide. Costal space broad (at least in middle portion). Subcostal veinlets poorly preserved, forked. Subcostal space moderately broad in middle part, no crossveins detected. Space between R1, Rs rather broad, no crossveins detected (although some possible). Rs with 11 preserved branches, mostly deeply forked and dichotomously branched distally. MA with three deeply forked branches. MP forked at level of proximal-most fork of CuP. MP1 pectinate, with three branches, one of these deeply forked. MP2 pectinate, with three branches, one of these deeply forked. MP space markedly dilated proximally. CuA with five pectinate long branches, mostly deeply forked. CuP few branched, nearly dichotomous. A1 nearly dichotomously branched, greater than CuP. A2 fragmentarily preserved. Crossveins poorly preserved, only several detected, others possible. Color pattern not preserved.

Material. Holotype PIN 2389 / 512 (part only), an incomplete, rather poorly preserved forewing; housed in PIN.

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

Etymology. From the Latin anterior, anterior, and Media, a medial vein, in reference to the structure of the Media anterior (MA) of the forewing.