Arctiocossus stroehlei Yakovlev, 2021

Yakovlev, Roman V., 2021, New species of Arctiocossus Felder, 1874 (Lepidoptera, Cossidae: Cossinae) from Republic of South Africa, Ecologica Montenegrina 41, pp. 1-5 : 3

Arctiocossus stroehlei Yakovlev sp. n.

https://zoobank.org/ urn:lsid:zoobank.org:act:3F8D3F2F-6709-4407-B30C-130499DFE0DC

Figs 1−2 , 5

Material. Holotype, male, South Africa, Free State Province, Clarens, Sunny Side lodge, 28º32′09.0′′ S / 028º31′07.9′′ E, 1813 m, 19−22.xi.2012, leg. Ströhle ( MSW, slide MSW 2015 /25 Coss).

Description. Length of fore wing 11.5 mm. Antenna bipectinate, crest processes long, 4 times longer than antenna rod diameter. Fore wing brown, with wide longitudinal light colored stroke basally (in basal third of costal edge, in discal cell and between veins M 2 and CuA 1); bright black strokes in medial area postdiscally and along vein CuP (in medium third), small black strokes on wing apically; fringe brown unicolorous. Hind wing brown, slightly lighter colored in anal area, with light-brown rim and unicolorous brown fringe.

Male genitalia. Uncus long, cylindrical, with parallel edges, apically rounded; gnathos arms thick, long; gnathos small; valve evenly narrowing from base to apex, costal edge almost smooth (very poorly developed bumps in medium third of costal edge), valve apically rounded; transtilla processes short, uncinately bent, basally very thick, apically sharp; juxta saddle-like with two lateral processes clavately widened apically and diverged at an angle of 90º; saccus tiny, semicircular; phallus shorter than valve, gradually narrowing from base to apex, strongly curved on border between medium and basal third; vesica aperture in dorso-apical position, takes about 1/3 of phallus in length, vesica without cornuti.

Female unknown.

Diagnosis. Externally, the new species is most close to A. antargyreus Felder, 1874 ( Figs 3−4 ), from which it distinctively differs in a series of characters in the male genital structure:

- the expressed ledge on the costal edge of the valve (on border between medium and distal thirds;

- very thin transtilla processes.

Etymology. The new species is named after my colleague and friend, Manfred Ströhle (Weiden, Germany) an explorer of the African fauna of Lepidoptera .

Figures

Figures 1−4. Acrtiocossus (Holotypes and male genitalia of Holotypes): 1. A. stroehlei (MSW); 2. Male genitalia of A. stroehlei (slide: MSW 2015/25 Coss); 3. A. antargyreus (NHMUK); 4. Male genitalia of A. antargyreus (slide: Cossidae genitalia slide # 224).