Barsine garo Volynkin, 2018

Volynkin, A. V., 2018, Four new species of the genus Barsine Walker, 1854 (Lepidoptera: Erebidae, Arctiinae) from Oriental Region, Far Eastern Entomologist 358, pp. 1-18 : 6-7

Barsine garo Volynkin , sp. n.

Figs 3, 4 , 22 , 34

TYPE MATERIAL. Holotype ( Figs 3 , 22 ) – ♂, NE India, Assam, W Meghalaya,

Garo Hills, Nokrek National Park, 25°40'N, 91°04'E, 1150 m, 2–13.VII 1997, leg.

Afonin & Sinajev, slide MWM 31769 Volynkin (Coll. MWM / ZSM). Paratypes :

same data as in the holotype, 1 ♂, 6 ♀, slide MWM 31770 (♀) Volynkin (Coll.

MWM / ZSM).

DIAGNOSIS. The new species ( Figs. 3, 4 ) is a closest relative of B. midzhan

( Figs. 1, 2 ) but differs externally from it by its by its significantly larger size, more reddish forewing ground color and pinkish hindwings, The male genitalia of B.

garo ( Fig. 22 ) differ from those of B. midzhan ( Fig. 21 ) by the much narrower tuba analis, presence of a long conical medial process of juxta, slightly smaller medial costal process, much smaller dorsal subapical costal process, more robust distal saccular process, longer aedeagus, narrower, conical subbasal diverticulum without a cluster of cornuti, and longer and narrower cornuti of both clusters. The male genitalia of B. garo are also similar to those of B. complicata ( Fig. 23 ), but differ by the broader tuba analis, broader medial costal process, presence of distal costal process, much larger distal saccular process, longer aedeagus, and presence of one more cluster of spine-like cornuti in vesica. In the female genitalia, B. garo ( Fig.

34) differs from B. midzhan ( Fig. 33 ) by its larger lateral ostial ligula, narrower and significantly longer antrum, less sclerotized appendix bursae and weaker spinulose scobination of corpus bursae; from B. complicata ( Fig. 35 ) differ by the presence of ostial ligula, much longer postvaginal plate, slightly longer and stronger sclerotized antrum, much smaller appendix bursae, much narrower corpus bursae with dense spinulose scobination medially and posteriorly (whereas in B. complicata the medial and posterior sections of corpus bursae are weakly sclerotized, rugose, with two sclerotized narrow bands), and larger signum. Externally, B. garo is also similar to medial line not angled outwards at tornus, darker, more reddish hindwings with dark suffusion at apex, dark hindwings cilia at apex, and the male and female genitalia structures.

DESCRIPTION. Adult ( Figs 3, 4 ). Forewing length 10–10.5 mm, in males and

10–11 mm in females. Male antennae ciliate, female antennae filiform. Head and thorax brick orange; abdomen ochreous. Forewing ground color brick orange with intense reddish suffusion between veins; pattern thin, blackish brown; antemedial line angled; medial line angular-wavy, connects with antemedial line in cell; postmedial line strongly curved, connected with medial line at costal and tornal margins,

submarginal area with a series of longitudinal stripes of different length between veins, marginal line interrupted, presented as a row of dots between veins; costa and cilia blackish brown. Hindwings ochreous pinkish, with slight dark suffusion at apex; cilia blackish at apex and pinkish ochreous at tornus and along anal margin.

Male genitalia ( Fig. 22 ). Uncus long, narrow, laterally flattened, curved,

apically pointed; tuba analis medium broad, scaphium thin and weakly sclerotized,

subscaphium as a setose field; tegumen short and narrow; juxta shield-like, with large, conical medial process; vinculum short, U-like. Valve long and narrow, costa weakly sclerotized, with short, pimple-like medial process directed ventrally and very small and apically rounded subapical process directed dorsally; medial membranous lobe of valve small; sacculus narrow, weakly setose, with short but robust distal process curved dorsally. Aedeagus long, narrow, S-like curved, with short coecum; vesica membranous, broad, consists of large, conical subbasal diverticulum,

and several smaller medial diverticula and two clusters of short, but robust, thorn-

like cornuti.

Female genitalia ( Fig. 34 ). Ovipositor short and broad, papillae anales quadran-

gular, with rounded angles; apophyses anteriores and posteriores moderately long,

thin, equal in length; ostium broad, with trigonal, apically rounded lateral ostial ligula; postvaginal plate medium broad, elongated, heavily sclerotized; antrum short and broad; anterior section of ductus bursae short, membranous, narrow. Corpus bursae globular, with moderately strong spinulose scobination postero-medially,

and very weak spinulose scobination and round signum anteriorly; appendix bursae small, conical, weakly sclerotized, situated latero-posteriorly.

DISTRIBUTION. The new species is known from northeastern India (Garo Hills in Meghalaya State).

ETYMOLOGY. The species name is dedicated to the Garo people inhabiting its type locality, Garo Hills in Meghalaya State of India .

Figures

Figs. 1–8. Barsine spp., adults. 1, 2 – B. midzhan sp. n.: 1 – holotype ♂, N Myanmar, Kachin State (MWM/ZSM); 2 – paratype ♀, N Myanmar, Kachin State (MWM/ZSM); 3, 4 – B. garo sp. n.: 3 – holotype ♂, NE India, W Meghalaya (MWM/ZSM); 4 – paratype ♀, NE India, W Meghalaya (MWM/ZSM); 5, 6 – B. complicata: 5 – ♂, Malaysia, Cameron Highlands

Figs. 21–24. Barsine spp., male genitalia. 21 – B. midzhan sp. n., holotype, N Myanmar;

Figs. 33–40. Barsine spp., female genitalia. 33 – B. midzhan sp. n., paratype, N Myanmar;