Barsine navneetsinghi Volynkin & Černý, 2018

Volynkin, Anton V. & Černý, Karel, 2018, Revision of the Barsine zebrina species-complex, with description of three new species (Lepidoptera, Erebidae, Arctiinae, Lithosiini), Zootaxa 4402 (2), pp. 339-352 : 352

Barsine navneetsinghi Volynkin & Černý , sp. nov.

( Figs. 21–24 , 39, 40 , 46 )

Type material. Holotype ( Figs. 21 , 39 ): ♂, NE India, W Meghalaya, Umran , 33 km N Shillong, 26°06'N, 92°23'E, 800 m, 14–23.VII.1997, leg. Sinjaev & Afonin, slide MWM 33543 Volynkin (Coll. MWM/ ZSM).

Paratypes: 3 ♂, 1 ♀, Myanmar ( Burma ), 21 km E Putao Nan Sa Bon village 550 m, 1–5.V.1998, leg. Murzin & Sinjaev, slides MWM 33552 (♂), MWM 33553 (♂), MWM 33554 (♂), ZSM Arct . 150/2017 ♀ Volynkin (Coll. MWM/ZSM).

Diagnosis. Forewing length is 10–11.5 mm in males and 11 mm in females. Externally, B. navneetsinghi sp. nov. ( Figs. 21–24 ) is very similar to large specimens of the sympatric B. subzebrina sp. nov. ( Figs. 6–12 ), and can be separated by the genitalia structures. The male genitalia of B. navneetsinghi sp. nov. ( Figs. 39, 40 ) are surprisingly different from those of B. subzebrina sp. nov. ( Figs. 31–34 ) by absence of medial process of juxta, larger vinculum, much narrower and curved medial costal process, much shorter distal costal process directed distally, stronger dentation of ventral margin of sacculus, apically pointed distal saccular process, and larger, spinelike cornuti in the largest medial diverticulum of vesica. In the male genitalia, B. navneetsinghi sp. nov. ( Figs. 39, 40 ) is closer to B. radians ( Figs. 25, 26 , 41 , 47 ) due to pentagonal juxta without medial process, large vinculum, and spine-like cornuti in vesica, but differs clearly by the narrower, curved and apically pointed medial costal process, broader distal costal process directed distally, dentate dorsal margin of sacculus, shorter distal saccular process, and larger subbasal diverticulum of vesica, whereas in B. radians ( Fig. 41 ) the medial costal process is much broader and apically rounded, the distal costal process is thinner, apically pointed, directed dorsally, the dorsal margin of sacculus is setose, the distal saccular process is longer, and the subbasal diverticulum of vesica is significantly smaller. The female genitalia of B. navneetsinghi sp. nov. ( Fig. 46 ) differ from those of B. radians ( Fig. 47 ) by the much broader, V-shaped postvaginal plate, broader ostium bursae, narrower sclerotized posterior section of ductus bursae, more robust spinulose scobination of corpus bursae, and much larger appendix bursae; from B. subzebrina sp. nov. ( Fig. 43 ) differ by the V-shaped postvaginal plate (whereas in B. subzebrina sp. nov. the postvaginal plate is more or less T-shaped), heavily sclerotized margins of ostium bursae and posterior section of ductus bursae (whereas in B. subzebrina sp. nov. the ostium bursae has rugose membranous margins, and the ductus bursae is evenly membranous), much smaller signum, and significantly larger appendix bursae.

Distribution. B. navneetsinghi is known from northeastern India (W Meghalaya) and northern Myanmar (Kachin State).

Etymology. The species name is dedicated to Dr. Navneet Singh, a famous researcher of the Arctiinae of India.

Figures

FIGURES 21–26. Barsine spp.: adults. 21, B. navneetsinghi, holotype ♂, NE India (MWM/ZSM); 22, B. navneetsinghi, paratype ♂, N Myanmar (MWM/ZSM); 23, B. navneetsinghi, paratype ♂, N Myanmar (MWM/ZSM); 24, B. navneetsinghi, paratype ♀, N Myanmar (MWM/ZSM); 25, B. radians, holotype ♂, NE India, N of West Bengal, Darjeeling (NKMB); 26, B. radians, ♀, Nepal (MWM/ZSM).

FIGURES 39–41. Barsine spp.: male genitalia.39, B. navneetsinghi, holotype, NE India, slide MWM 33543 Volynkin; 40, B. navneetsinghi, paratype, N Myanmar, slide MWM 33552 Volynkin; 41, B. radians, holotype, NE India, Darjeeling, slide AV2887.

FIGURES 42–47. Barsine spp.: female genitalia. 42, B. zebrina, N Thailand, slide AV2756 Volynkin; 43, B. subzebrina, paratype, Nepal, slide MWM 31694 Volynkin; 44, B. pluma, paratype, W Thailand, slide AV2747 Volynkin; 45, B. bucseki, paratype, SW Thailand, slide AV2761 Volynkin; 46, B. navneetsinghi, paratype, N Myanmar, slide ZSM Arct. 150/2017 Volynkin; 47, B. radians, Nepal, slide MWM 31786 Volynkin.

FIGURES 1–12. Barsine spp.: adults. 1, B. zebrina, holotype ♀, India, Kolkata (©NHMUK); 2, B. zebrina, ♂, India, Kolkata (©NHMUK); 3, B. zebrina, ♂, N Thailand, Phrae prov. (CAV); 4, B. zebrina, ♂, N Thailand, Nan prov. (CKC); 5, B. zebrina, ♀, W Thailand, Kanchanaburi prov. (CKC); 6, B. subzebrina, holotype ♂, Nepal (MWM/ZSM); 7, B. subzebrina, paratype ♀, Nepal (MWM/ZSM); 8,B.subzebrina, paratype ♂, Nepal (MWM/ZSM);9, B.subzebrina, paratype♂, NEIndia (CKC);10, B. subzebrina, paratype ♀, NEIndia (MWM/ZSM); 11, B. subzebrina, paratype ♂,N Myanmar(MWM/ZSM); 12, B.subzebrina, paratype ♀, N Myanmaar (MWM/ZSM).

FIGURES 31–34. Barsine subzebrina: male genitalia. 31, holotype, Nepal, slide MWM 33545 Volynkin; 32, paratype, Nepal, slide MWM 31693 Volynkin; 33, paratype, NE India, slide AV2766 Volynkin; 34, paratype, N Myanmar, slide MWM 31687 Volynkin.