Lithosarctia goergneri de Freina & Witt, 1994

Volynkin, Anton V., Saldaitis, Aidas & Višinskas, Vytautas, 2018, A brief review of the genus Lithosarctia, with the description of a new species from China (Lepidoptera, Erebidae, Arctiinae), Zootaxa 4444 (5), pp. 561-574 : 572-573

Lithosarctia goergneri de Freina & Witt, 1994

( Figs. 17, 18 , 26 )

Lithosarctia y-albula goergneri de Freina & Witt, 1994 , Atalanta 25 (3/4): 538, text fig. 3, color pl. 18a, fig. 1 (Type locality: “ China, Gansu [= Kansu = Ghansu], Xiahe [=Siaho = Labrang, ca. 150 km SW Lanzhou], 3000–3500 m ”).

Type material examined. Holotype ( Fig. 17 ): ♂, “ China / Gansu, Xiahe, 3000–3300 m, 25–29.VI.1986, Coll. Nr. 245, leg. Görgner ” / “ Holotypus Lithosarctia y-albula ssp. goergneri de Freina & Witt 1994 Atalanta 25 (3/4): 538” / “ W. Thomas Genitalpräp. Nr. A 535” / “ Genitalpräparat Nr. 3092 Th. Witt, München” / “ Coll. Dr. W . Thomas, Mus. Witt München” ( Coll. MWM/ ZSM) ; paratype ( Figs. 12, 20 ): ♂, “ China / Gansu, Xiahe , 3000–3300 m, 25– 29.VI.1986, Coll. Nr. 245, leg. Görgner ” / “ Paratypus Lithosarctia y-album ssp. goergneri de Freina & Witt ” / Museum Witt München ” / “ Coll. Dr. W . Thomas, Mus. Witt München”, slide MWM 33700 Volynkin ( Coll. MWM/ ZSM) .

Diagnosis. Forewing length is 11–12 mm in males. Externally, the species is very similar to L. kozlovi , which belongs to another species-group, and differs only by its paler, dark brown wing coloration. The main differences between the two species are in their male genitalia: in L. goergneri , the uncus is much broader basally, the tegumen is significantly narrower, the distal processes of the valva are reduced, and the vesica is significantly shorter and narrower. The male genitalia of L. goergneri are very similar to those of L. y-albulum (which explains why it was originally described as a subspecies of L. y-albulum), but can be distinguished by the slightly narrower uncus, the juxta having an apical concavity (whereas in L. y-albulum the juxta is more or less rounded apically), the slightly narrower valva, and the much shorter and narrower vesica.

Female is unknown.

Distribution. China: Gansu (de Freina & Witt 1994) ( Fig. 40 ).

Figures

FIGURE 40. Distribution map of the species of Lithosarctia.

FIGURES 11–20. Lithosarctia spp., adults. 11, L. y-albulum, ♂, China, Sichuan (MWM/ZSM); 12, L. y-albulum, ♀, China, Sichuan (MWM/ZSM); 13, L. y-albulum, holotype ♂ of rubida, China, Sichuan (©NHMUK); 14, L. y-albulum, ♀, China, Sichuan (©NHMUK); 15, L. y-albulum, ♂, China, Sichuan (©NHMUK); 16, L. y-albulum, holotype ♀ of lugubris, China, Sichuan (©NHMUK); 17, L. goergneri, holotype ♂, China, Gansu (MWM/ZSM); 18, L. goergneri, paratype ♂, China, Gansu (MWM/ZSM); 19, L. thomasi, holotype ♂, Nepal (MWM/ZSM); 20, L. thomasi, paratype ♂, Nepal (MWM/ZSM).

FIGURES 25–27. Lithosarctia spp., male genitalia. 25, L. y-albulum, China, Sichuan slide MWM 33704 Volynkin; 26, L. goergneri, holotype, China, Gansu, slide MWM 33700 Volynkin; 27, L. thomasi, holotype, Nepal, slide MWM 33702 Volynkin.