Barsine cardinalis gemina Volynkin & Černý, 2017

Volynkin, Anton V. & Černý, Karel, 2017, Revision of the Barsine cardinalis - anomala ' species-complex' (Lepidoptera, Erebidae, Arctiinae), Zootaxa 4358 (3), pp. 441-461 : 443-444

Barsine cardinalis gemina Volynkin & Černý , ssp. nov .

( Figs. 5–6 , 27 , 39 )

Type material. Holotype ( Figs. 5 , 27 ): ♂, 14–22.VIII.2016, N Thailand, Chiang Mai prov., Thong Chai Range, near Doi Suthep-Pui National Park, 18°54'10.50''N 98°51'46.05''E, h= 700 m, secondary forest, Volynkin A.V. & Ivanova M.S. leg., slide AV 2376m Volynkin (Coll. NHMUK, ex coll. CAV).

Paratypes (2 ♂, 2 ♀): 2 ♀, same data as in the holotype, slide AV2377f Volynkin ( Coll. CAV) ; 1 ♂, N Thailand, Lampang prov., Chae Son NP, 1496 m, 18°51'23''N, 99°22'E, 1.VI.2011, leg. K. Černý (Coll. CKC) ; 1 ♂, Thailand, Chiang Mai province, Doi Suthep , 18°47.974´N; 98°54.901´E, 1087 m, At MV light, 01.VIII.2006, G. Martin, BMNH (E); 2006-128 (Coll. NHMUK) .

Diagnosis. Externally, the new subspecies differs from the nominate subspecies in slightly smaller females only, the main differences are in the genitalia of both sexes: the male genitalia differ in the broader valva with basally broader apical costal process, the more prominent distal saccular process, and the broader subbasal diverticulum of vesica with a cluster of smallest robust cornuti of different size (whereas in the nominate subspecies the valva is narrower, the distal costal process is narrower basally, the distal saccular process is almost not prominent beyond the valva edge, and the vesica has narrower subbasal diverticulum without a field of smallest cornuti); the female genitalia differ in longer anterior section of corpus bursae with a longer band-like signum.

Description. Adult ( Figs. 5–6 ). Sexual dimorphism well developed: male has fasciculate antennae (whereas female has ciliate antennae), significantly smaller size (length of forewing 8.5–9 mm in males and 11–11.5 mm in females), narrower forewings and narrower and more trigonal hind wings. Head and thorax dark red, abdomen black. Forewing narrow, elongated, with rounded apex and oblique anal edge. Ground color of forewing dark red, darkened in submarginal and marginal areas. Pattern consists of a narrow longitudinal trigonal black strip along vein Cu and reaching wing margin between M1 and M2. Cilia dark red, with black spots opposite dark strip and between veins M3 and Cu1. Hind wing narrow, trigonal. Ground color of hind wing blackish brown, basally hyaline with pinkish suffusion, this hyaline area is broader in male. Cilia blackish brown. Male genitalia ( Fig. 27 ). Uncus long, narrow, laterally flattened, apically pointed, C-like curved. Tuba analis with scobinated field in subscaphial area. Tegumen short and moderately broad. Vinculum of moderate size, U-like. Valva narrow, subdistally broadened, apically strongly narrowed, with trigonal distal costal process situated apically; medial costal process reduced, small, tubercle-like; membranous distal lobe of valva absent. Sacculus narrow, setose; distal saccular process short, apically blunt, slightly prominent beyond the valva edge. Aedeagus of moderate width, almost straight; vesica globular, membranous, with one broad conical subbasal diverticulum with field of very small but robust cornuti latero-ventrally and field of short robust cornuti medially. Female genitalia ( Fig. 39 ). Ovipositor short and broad, papillae anales broad, trapezoid, with rounded angles. Apophyses anteriores and posteriores of same length, long and thin. Antrum broad, antevaginal plate broad, strongly sclerotized, with deep U-like medial concavity; ductus bursae short and broad, membranous; corpus bursae long, medially twisted, its posterior section with strong rugose sclerotization; anterior section of corpus bursae membranous, with one long band-like signum; appendix bursae short, conical, membranous, situated postero-laterally.

Distribution. North Thailand (Chiang Mai and Lampang provinces).

Etymology. 'Geminus' is 'twin' in Latin. The subspecies' name refers to its external similarity to the nominate subspecies.

Figures

FIGURES 1–9. Barsine spp.: adults.1, B. cardinalis cardinalis, holotype ♂, Sikkim (©NHMUK); 2, B. cardinalis cardinalis, holotype ♂ of Miltochrista erubescens, Khasis (©NHMUK); 3, B. cardinalis cardinalis, ♂, Khasis (©NHMUK); 4, B. cardinalis cardinalis, ♀, Khasis (©NHMUK); 5, B. cardinalis gemina, holotype ♂, N Thailand, Chiang Mai prov. (NHMUK, ex coll. CAV); 6, B. cardinalis gemina, paratype ♀, N Thailand, Chiang Mai prov. (CAV); 7, B. longstriga, holotype ♂, China, Shaanxi prov., Qinling (IZCAS); 8, B. longstriga, ♂, China, Sichuan, Kwanhsien (©NHMUK); 9, B. longstriga, ♀, China, Sichuan, Kwanhsien (©NHMUK).

FIGURES 26–28. Barsine spp.: male genitalia. 26, B. cardinalis cardinalis, NE India, Khasis, slide BMNH(E) Arct-6487m Volynkin (©NHMUK); 27, B. cardinalis gemina, holotype, N Thailand, slide AV2376m Volynkin; 28, B. longstriga, China, Sichuan, slide BMNH(E) Arct-6485m Volynkin (©NHMUK).

FIGURES 38–43. Barsine spp.: female genitalia. 38, B. cardinalis cardinalis, NE India, Khasis, slide BMNH(E) Arct-6488f Volynkin (©NHMUK); 39, B. cardinalis gemina, paratype, N Thailand, slide AV2377f Volynkin; 40, B. longstriga, China, Sichuan, slide BMNH(E) Arct-6486f Volynkin (©NHMUK); 41, B. pseudocardinalis, paratype, N Thailand, slide AV2375f Volynkin; 42, B. pseudocardinalis, paratype, Central Vietnam, slide AV2388f Volynkin; 43, B. anomala, Sikkim, slide BMNH(E) Arct-6483f Volynkin (©NHMUK).