Jankowskia pseudathleta Sato, 1980

Jiang, Nan, Xue, Dayong & Han, Hongxiang, 2010, A review of Jankowskia Oberthür, 1884, with descriptions of four new species (Lepidoptera: Geometridae, Ennominae), Zootaxa 2559, pp. 1-16 : 6-7

Jankowskia pseudathleta Sato, 1980

Jankowskia pseudathleta Sato, 1980 , Tyô to Ga 30 (3&4): 136, figs. 9, 10, 15, 20. Holotype 3, [ Japan]: Hokkaido, Sapporo. (NSMT)

Diagnosis. This species is very similar to J. athleta in: the forewing outer margin is almost straight; the tegumen posterior processes of the male genitalia are digitiform, each with a bundle of long setae apically; the juxta symmetrical. But it can be distinguished from that species by the forewing postmedial line which is less protruded outwards between M1 and M2, and the hindwing basal area is dull blackish brown. In the male genitalia ( Sato, 1980), the tegumen posterior processes are much shorter; the valva is even in width, not broadened terminally, one cluster of long setae is present near center, extending dorsally. In the female genitalia ( Sato, 1980), the ductus bursae is longer; the signum is irregularly shaped, with 4–6 long spines.

Distribution. Russia (Amur, Ussuri, South Kuriles), Japan, South Korea.