Eremocossus erebuni Yakovlev, 2008

Yakovlev, R. V., 2019, Eremocossus erebuni Yakovlev, 2008, stat. n. (Lepidoptera: Cossidae) - bona species, Russian Entomological Journal 28 (4), pp. 458-459 : 458-459

Eremocossus erebuni Yakovlev, 2008 , stat.n.

Figs. 1–2, 4 .

Eremocossus vaulogeri erebuni Yakovlev, 2008: 407 .

TYPE LOCALITY: Armenia, Parak .

MATERIAL EXAMINED: holotype, ♀, ArmSSR, Parak. exp., baza PRK-4, 7.6.62 [ Armenia, Parak ] ; paratype, ♀, Armenia, Chosrov env., 83.06, leg. Zubaschik (coll. M. Ströhle in Weiden) ; ♂, Causasus , Armenia, Karaglukh, 24.vi.1962, E. Milanowski (Zoological Institute in St. Peterburg) .

DESCRIPTION of male. Length of fore wing 13 mm. Antenna bipectinate, antenna processes 1.5 times longer than antenna rod diameter; length of antenna about ½ of fore wing length. Fore wing pale brown, with pattern of blurred brown spots and strokes throughout wing area. Fringe mottled, brown at veins, pale brown between veins.Hind wing pale grey without pattern, thin brown border on outer edge, fringe pale brown.

Male genitalia. Uncus wide, triangle, apically semicircular; tegumen robust; gnathos arms long, thick; gnathos membranous, poorly expressed; valve lanceolate, membranous in distal third, well expressed slightly serrated crest on costal edge of valve; transtilla process triangle, wide, with uncinately sharpened apex; juxta tiny, with two lateral processes diverging at obtuse angle; saccus semicircular, robust; phallus slightly shorter than valve, slightly curved in medium third, gradually narrowing to apex, vesica aperture in dorsoapical position, vesica without cornuti.

DIAGNOSIS. When comparing to the topotypes of E. vaulogeri (Staudinger, 1897) ( Figs 3, 5 ) from Algeria, a significant difference was revealed in their external characters as well as in the male genital structure details. E. vaulogeri is much lighter coloured, the fore wing is light yellow, with a transverse brownish band from the wing apex to root, and with a transverse band in submarginal area; the hind wing is light yellow. The genitalia of E. vaulogeri male are characterized by a narrow lanceolate valve, a poorly developed crest on the costal edge of the valve, tiny processes of the transtilla, and the well expressed saccus. Thus, the taxon from Armenia needs to get a species status of Eremocossus erebuni Yakovlev, 2008 , stat.n.

Acknowledgements. The authors express their gratitude to Sergei Sinev ( ZISP), and Harald Sulak ( MWM). The authors are grateful to Anna Ustjuzhanina (Tomsk, Russia) and Prof. Boris Kondratieff ( Fort Collins , USA) for language improvements. Financial support for this study was provided by grants No. 18-04-00440 from the Russian Foundation for Basic Research .

Figures

Figs 1–5. Adult specimens and male genitalia of Eremocossus: 1 — E. erebuni, holotype, ♀ (Zoological Institute, St. Petersburg); 2 — E. erebuni, ♂ (Zoological Institute, St. Petersburg); 3 — E. vaulogeri, ♂, Algeria (Museum Witt, Munich); 4 — E. erebuni, male genitalia (Genital slide Coss #5/ZISP — 2018); 5. E. vaulogeri, male genitalia (Genital slide 28.369 Museum Witt, Munich). Рис. 1–5. ЭкЗемплЯры имаго и гениталии самцов Eremocossus: 1 — E. erebuni, голотип, ♀ (Зоологический институт РАН, Санкт- Петербург); 2 — E. erebuni, ♂ (Зоологический институт РАН, Санкт-Петербург); 3 — E. vaulogeri, ♂, Алжир (МуЗей Витта, Мюнхен); 4 — E. erebuni, гениталии самца (слайд Coss #5/ZISP — 2018); 5. E. vaulogeri, гениталии самца (слайд 28.369 МуЗей Витта, Мюнхен).