Barsine cacharensis Singh & Kirti, 2016

Volynkin, Anton V., Huang, Si-Yao, Dubatolov, Vladimir V. & Kishida, Yasunori, 2019, Barsine wangi, a new species from Guangdong, southern China (Lepidoptera, Erebidae, Arctiinae), Zootaxa 4664 (3), pp. 445-450 : 446-450

Barsine cacharensis Singh & Kirti, 2016 ( Figs 3, 4 , 12 , 16 )

Barsine cacharensis Singh & Kirti, in Kirti & Singh, 2016 , Arctiid Moths of India 2: 66, text figs (Type locality: “ Assam, Cachar hills, Jatinga”).

Material examined: long series of both sexes from China (Yunnan and Sichuan Provinces), North Thailand (Chiang Mai and Nan Provinces), North Laos (Houaphanh Province) and North Vietnam (Hòa Bình and Lào Cai Provinces) (Colls MWM/ ZSM, CKC and CAV).

Remark. In the original description of B. cacharensis ( Kirti & Singh 2016) , the authors mention an asymmetry of vvalves as the main diagnostic feature of its male genitalia. However, the asymmetry of valves is unknown in the subtribe Nudariina , which the genus Barsine belongs to. At the same time it is clearly visible on the picture provided (see Kirti & Singh 2016: 66) that the left valve of B. cacharensis is distally broken, what is a reason of the appearance of this seeming asymmetry. All other specimens examined have symmetric valves, which structure fits to the illustrations in the original description well.

Diagnosis. Forewing length 15–17 mm in males and 20–22 mm in females. Externally, B. cacharensis ( Fig. 3, 4 ) resembles B. striata ( Bremer & Grey, 1852) (illustrated by Volynkin & Černý 2016: figs 15,16), but can be distinguished from it by the more diffuse blackish forewing pattern elements, the medial transverse line being angled in the cell (that is smoothly curved in B. striata ) and the longer longitudinal strokes of subterminal area. The male genital capsule of B. cacharensis ( Fig. 12 ) differs clearly from that of B. striata (illustrated by Volynkin & Černý 2016: fig. 27) by its distally narrower uncus, larger vinculum, valve being narrower basally and broader distally, larger and distally blunted medial costal process (that is apically pointed in B. striata ), larger distal membranous lobe of valve, shorter and broader basal saccular process being blunted apically, and bilobate distal saccular process (that is unilobate in B. striata ). The vesica of B. cacharensis differs from that of B. striata by its smaller 1 st medial diverticulum, bilobate 2 nd medial diverticulum bearing a narrower cluster of cornuti (that is unilobate and bearing broader cluster of cornuti in B. striata ), and longer 3 rd medial diverticulum. The female genitalia of B. cacharensis ( Fig. 16 ) can be easily distinguished from those of B. striata (illustrated by Volynkin & Černý 2016: fig. 34) by the narrower and much shorter ductus bursae and elongated corpus bursae (that is globular in B. striata ). The differences between B. cacharensis and B. wangi are listed in the diagnosis of the latter species.

Distribution. The species is widespread in North East India (Assam) ( Kirti & Singh 2016), South West China, North Thailand, North Laos and North Vietnam.

Figures

FIGURES 1–10. Barsine spp.: adults. 1, B. wangi, holotype ♂, China, Guangdong (ZSMN); 2, B. wangi, paratype ♀, China, Guang- dong (ZSMN); 3, B. cacharensis, ♂, China, Yunnan (MWM/ZSM); 4, B. cacharensis, ♀, N Thailand, Nan (MWM/ZSM); 5, B. defecta rubella, holotype ♂, China, Yunnan (MWM/ZSM); 6, B. defecta rubella, paratype ♀, China, Yunnan (MWM/ZSM); 7, B. defecta defecta, ♂, Nepal (MWM/ZSM); 8, B. defecta defecta, ♀, Nepal (MWM/ZSM); 9, B. gratissima gratissima, ♂, N Vietnam (MWM/ ZSM); 10, B. gratissima gratissima, ♀, N Vietnam (CKC).

FIGURES 11–14. Barsine spp.: male genitalia. 11, B. wangi, holotype, China, Guangdong, slide AV1788♂ Volynkin; 12, B. cacharensis, China, Yunnan, slide MWM 33954 Volynkin; 13, B. defecta rubella, holotype, China, Yunnan, slide MWM 31622 Volynkin; 14, B. gratissima gratissima, N Vietnam, slide AV2501♂ Volynkin.

FIGURES 15–18. Barsine spp.: female genitalia. 15, B. wangi, paratype, China, Guangdong, slide AV1789♀ Volynkin; 16, B. cacha- rensis, N Thailand, Nan, slide MWM 35697 Volynkin; 17, B. defecta rubella, paratype, China, Yunnan, slide MWM 31623 Volynkin; 18, B. gratissima gratissima, N Vietnam, slide AV2814♀ Volynkin.