Roepkiella korshunovi, Yakovlev, 2020

Yakovlev, Roman V., 2020, Two new species of Roepkiella Yakovlev & Witt, 2009 (Lepidoptera, Cossidae) from Indonesia and Thailand, Ecologica Montenegrina 38, pp. 102-106 : 105

Roepkiella korshunovi sp. nov.

Figs 5−6 , 9 .

Material examined. Holotype, male, Thailand, Khon Kaen Prov., Phu Wiang Wat, N 16.75.660 / E102.35.698, 28.x.2011 (MWM, Slide Genitalpräparat Heterocera No 27.414) . Paratype, male, Thailand, Udon Thani Prov., Ban Nong Phai, N 17.24.812 / E 102.89.700, 20.x.2011 (MWM, Slide Genitalpräparat Heterocera No 27.413) .

Description. Length of fore wing 13−15 mm. Antenna simple, not pectinate. Tegulae light- brown, thorax dirty-white from above. Fore wing light-brown with rare pattern of strokes from base to postdiscal area, tow oblique black parallel bands (from costal edge to anal angle), postdiscal and submarginal area light-grey with dense pattern of strokes, small brown spots on outer edge at tops of veins, fringe mottled: dark at veins, light between veins. Hind wing dark-grey, without pattern, fringe grey unicolorous.

Male genitalia. Uncus triangle, long, apex uncinately bent, strongly sclerotized; gnathos arms thick, short; gnathos of medium size; valve basally wide, gradually narrowing to apex, apex lanceolate, distal end of valve membranous, small double dentate process on costal edge of valve (at transition of sclerotized part to membranous one); transtilla processes strongly sclerotized, apically sharp, gradually narrowing from base to apex, almost straight; juxta scaphoid with strongly sclerotized short thick lateral processes; saccus semicircular, of medium size; phallus robust, almost straight, of even thickness along the entire length, vesical aperture in dorso-apical position, takes about ½ of phallus in length, vesica without cornuti.

Diagnosis. The new species differs from all the known species of the genus in the following characters:

- two clearly expressed oblique parallel black bands on the fore wing (from the costal edge to the anal angle) - the double bump on the costal edge of the valve.

Distribution. North-Eastern Thailand (Khon Kaen and Udon Thani Provinces).

Etymology. The new species is named after the well-known Russian entomologist Yury P. Korshunov (1933−2002), a prominent specialist in the fauna of Lepidoptera of the USSR and Siberia, who gave me numerous invaluable lessons in faunistics and taxonomy.

Figures

Figures 1−6. Adult specimens (males) of Roepkiella: 1. R. jakli sp. nov., holotype (MWM); 2. R. jakli sp. nov., paratype (MWM); 3. R. celebensis (Roepke, 1957), holotype (RMNH); 4. R. celebensis (Roepke, 1957), Z. Sulawesi, Kulawi, 1º26′S / 120ºE, 7−8.ii.1995, 1000 m, Tarasov & Sinjaev leg. (MWM); 5. R. korshunovi sp. nov., holotype (MWM); 6. R. korshunovi sp. nov., paratype (MWM).

Figures 7−9. Male genitalia of Roepkiella: 7. R. jakli sp. nov., holotype (Slide Genitalpräparat Heterocera No 27.411); 8. R. celebensis (Roepke, 1957), Z. Sulawesi, Kulawi, 1º26′S / 120ºE, 7−8.ii.1995, 1000 m, Tarasov & Sinjaev leg. (Slide Genitalpräparat Heterocera No 27.410); 9. R. korshunovi sp. nov., holotype (Slide Genitalpräparat Heterocera No 27.414).