Barsine eos Volynkin & Černý, 2019

Volynkin, Anton V., Černý, Karel & Huang, Si-Yao, 2019, A review of the Barsine hypoprepioides (Walker, 1862) species-group, with descriptions of fifteen new species and a new subspecies (Lepidoptera, Erebidae, Arctiinae), Zootaxa 4618 (1), pp. 1-82 : 25-26

Barsine eos Volynkin & Černý , sp. n.

( Figs 106, 107 , 200, 201 , 254 )

Type material. Holotype ( Figs 106 , 200 ): ♂, N Thailand, Lampang prov., Chae Son NP, 1496 m, 18°51’23’’N 99°22’E, 1.VI.2005, leg. K. Černý, slide AV2771 ♂ Volynkin (Coll. MWM/ ZSM, ex coll. CKC).

Paratypes: THAILAND: 1 ♂, same data as in the holotype, slide AV2772 ♂ Volynkin (Coll. CKC) ; 2 ♀, N Thailand, Chiang Mai prov., Doi Inthanon NP, 1416 m, 18°30’59’’N 98°28’13’’E, 6–7.VI.2005, leg. K. Černý, slide AV2773 ♀ Volynkin (Coll. CKC) ; 1 ♂, Thailand , Changwat Nan, 30 km E of Pua, 1700 m, 14–15.IX.1999, leg. A. Szabo & Zita (Coll. MWM/ ZSM) .

Diagnosis. Forewing length is 9.5–10 mm in males (10 mm in the holotype) and 10.5–11 mm in females. Barsine eos sp. n. is a closest relative of B. multistriata , but differs from it by the smaller size and less elongated forewing. The new species is also similar externally to B. terminifusca , but can be easily distinguished from it by its more thin pattern elements (those are more broad and diffuse in B. terminifusca ), less wavy medial line, the absence of blackish shades outside the postmedial line, and longitudinal strokes on veins in the subterminal area of forewing being in and stretched along the whole subterminal area (those are shorter, more diffuse and situated only in the medial part of the subterminal area in B. terminifusca ). In the male genitalia, B. eos sp. n. differs from B. multistriata by its valva being slightly broader medially, more robust medial costal process, ventral subbasal diverticulum being elongated (that is globular in B. multistriata ), and broader dorsal subbasal diverticulum. In comparison to those of B. terminifusca , the male genitalia of B. eos sp. n. have the valva being broader medially, the vinculum being more robust (that is narrower and more weakly sclerotized in B. terminifusca ), the broader ventral subbasal diverticulum, and the slightly broader dorsal subbasal diverticulum. The female genitalia of B. eos sp. n. differs from those of B. multistriata by the stronger spinulose scobination of corpus bursae and appendix bursae, and from those of B. terminifusca by the antrum being slightly broader and more heavily sclerotized.

Distribution. North Thailand (Chiang Mai and Nan) ( Černý & Pinratana 2009, as multistriata ).

Etymology. In Greek mythology, Eos is a Titaness and the goddess of the dawn.

Figures

FIGURES 102–109. Barsine spp., adults. 102, B. multistriata, holotype ♂, NE India (©NHMUK); 103, ditto, ♂, N Myanmar (MWM/ZSM); 104, ditto, ♂, NE India (©NHMUK); 105, ditto, ♀, NE India (©NHMUK); 106, B. eos, holotype ♂, N Thailand (MWM/ZSM); 107, ditto, paratype ♀, N Thailand (CKC); 108, B. terminifusca, holotype ♂, China, Fujian (ZFMK); 109, ditto, ♀, China, Sichuan (©NHMUK).

FIGURES 200–203. Barsine spp., male genitalia. 200, B. eos, holotype, N Thailand, slide AV2771 Volynkin; 201, ditto, N Thailand, slide AV2772 Volynkin; 202, B. terminifusca, holotype, China, Fujian, slide AV1826 Volynkin; 203, B. conformis, N Vietnam, slide MWM 31445 Volynkin.

FIGURES 252–258. Barsine spp., female genitalia. 252, B. ivanovamariae, paratype, N Vietnam, slide AV2795 Volynkin; 253, B. multistriata, NE India, slide BMNH(E) Arct.-6531 Volynkin (©NHMUK); 254, B. eos, paratype, N Thailand, slide AV2773 Volynkin; 255, B. terminifusca, China, Sichuan, NHMUK010315201 Volynkin (©NHMUK); 256, B. conformis, N Vietnam, slide MWM 31446 Volynkin; 257, B. helenae, holotype, N Thailand, slide MWM 30124 Černý; 258, B. melanovena, paratype, N Myanmar, slide MWM 31750 Volynkin.