Barsine kirata Volynkin & N. Singh, 2020

Volynkin, Anton V., Singh, Navneet, Kirti, Jagbir Singh & Datta, Harvinder Singh, 2020, Description of a new Barsine Walker, 1854 from India and Nepal (Lepidoptera, Erebidae, Arctiinae, Lithosiini), ZooKeys 941, pp. 107-120 : 107

Barsine kirata Volynkin & N. Singh sp. nov. Figs 11-18 , 25-28 , 31 , 32

Type material.

Holotype (Figs 11 , 25 ): male, "N-E. India, Assam, Nambor Reserv[e] Forest, Garampani, H = 100 m, 26°20'N, 93°55'E, 21-20. Nov. [IX] 1997, leg. V. Siniaev & M. Murzin", slide MWM 35702 Volynkin (Coll. MWM/ZSM).

Paratypes. India: 1 male, same data as in the holotype (Coll. MWM/ZSM); 6 males, India, Andhra Pradesh, Visakhapatnam, Paderu, 08.IX.2018, leg. Navneet Singh & Party, gen. preps by H.S. Datta (Coll. NZCZSI); Nepal: 1 male, Nepal, Tanahoun distr., Baisakhe Ghat, 10 km W Duleguunda, 630 m, 10.X.1994, leg. Csorba & Ronkay, slide MWM 33961 Volynkin (Coll. MWM/ZSM); 2 females, Nepal, valley of Tamea Kosi River, 1 km N of Dolakha, 1700 m, 12.X.1995, leg. L. Németh, slide MWM 33938 Volynkin (Coll. MWM/ZSM); 1 male, Nepal, valley of Tamea Kosi River, 5 km S of Piguti, 950m, 8/9.X.1995, leg.: L. Németh, slide MWM 33937 Volynkin (Coll. MWM/ZSM); 2 males, 19 females, Nepal, Lapchi Kang Range, 1 km S of Chitre (Signati), 1200m, (27°42'N, 86°10'E), 08.09.1995, leg. Chenga Sherpa, Museum Witt, slides MWM 33943 (male), MWM 33944 (female) Volynkin (Coll. MWM/ZSM); 3 males, 5 females, Nepal, Tanahoun distr., Bimalnager village, 530 m, 12.X.1994, leg. Csorba & Ronkay (Coll. MWM/ZSM); 7 males, 1 female, Nepal, Ganesh Himal, valley of Trisuli River, 2 km S of Betrawati, 930 m, 25.IX.1995, leg. L. Németh, slide MWM 33918 (male) Volynkin (Coll. MWM/ZSM); 2 males, Nepal, Ganesh Himal, 1040 m, Mailung Khola, ca 20 km NE Trisuli, 28°04'5"N, 85°12'5"E, 24.IX.1995, leg. B. Herczig & Gy. M. László (Coll. MWM/ZSM); 1 male, Nepal, Royal Chitwan National Park, Island Jungle Resort, 240 m, 21-23.VI.1993, leg. M. Hreblay, G. Csorba (Coll. MWM/ZSM).

Remarks.

Kirti and Singh (2016) erroneously recorded this species from India as B. orientalis bigamica Černý, 2009. Like B. germana , B. kirata sp. nov. is dimorphic, but the yellow form (Figs 17 , 18 ) is rare, and, so far, known only from the state of Andhra Pradesh (southeast India).

Diagnosis.

The new species (Figs 11-18 ) is very similar externally to B. germana (Figs 1-10 ) and can be distinguished from it by its less wavy antemedial transverse line. The male genital capsule of the new species (Figs 25-28 ) differs clearly from that of B. germana (Figs 21-24 ) by the distal ventral process of the valva having a short distal lobe directed dorso-distally and the longer dorsal lobe dorsally directed, while in B. germana the distal lobe is more elongated and distally directed and the dorsal lobe is dorso-distally directed. Additionally, in B. kirata sp. nov. the juxta is broader than that of B. germana , the basal saccular process is stouter and more curved, the distal lobe of valva is larger, and the distal part of the distal ventral process of valva is more robust. The vesica of B. kirata sp. nov. differs from that of B. germana by its slightly narrower 1st medial diverticulum, the smaller cornuti on the 2nd medial diverticulum, and the slightly less elongated 3rd medial diverticulum. The female genitalia of the new species (Figs 31 , 32 ) clearly differ from those of B. germana (29, 30) by the significantly shorter ductus bursae with shorter subostial folds, the wrinkled posterior sclerotised section of corpus bursae, the slightly smaller signum, the presence of the second, band-like signum in the anterior section of corpus bursae (absent in B. germana ), and the slightly smaller lateral membranous protrusion of the corpus bursae.

Description.

External morphology of adults (Figs 11-18 ). Wingspan 14.5-16 mm in males (15 mm in holotype) and 18-20 mm in females. Male antennae ciliate, female antennae filiform, pale ochreous in both sexes. Head crimson with yellow spot on frons. Thorax yellow, with three black dots; collar and tegulae yellow with crimson margins. Forewing broad with slightly elongated and rounded apex. Forewing ground colour yellow, with a pattern of black dots and strokes and various-shaped crimson spots and strokes between veins; costa between base and antemedial line black; basal spot very small, black; subbasal spot black, round; antemedial line W-like wavy, black, interrupted into a series of variously shaped, small spots on veins; medial line almost straight, angled inwards at costa, interrupted into a series of variously shaped small spots on veins; postmedial line smoothly curved outwards medially, presented as a series of black thin strokes of different lengths between veins; cilia amber yellow. Hindwing pale pink with yellowish suffusion along veins; cilia amber yellow along outer margin and apex, and pink along anal margin. Yellow form of species lacks all reddish pattern elements. Abdomen pink with admixture of yellow scales. Male genitalia (Figs 25-28 ). Tegumen moderately broad, shorter than valva; vinculum short but robust, V-shaped with convex lateral margins. Valva massive, with almost parallel margins; medial costal process broadly trigonal, with convex outer margin and slightly broadened and blunted tip; distal costal process very small, tubercle-shaped; distal lobe of valva large, oblique; sacculus broad, its basal process robust, broad, curved dorsally, apically rounded, reaches the distal costal process; distal ventral process broad, bilobate, its dorsal lobe approximatly two 2 times longer than distal lobe, narrow, apically blunted, directed dorsally; distal lobe short, thorn-shaped, directed dorso-distally. Uncus narrow, laterally flattened, curved, medially broadened, with claw-like tip; tuba analis broad. Scaphium narrow, weakly sclerotized. Juxta weakly sclerotized, X-shaped, with broader apical lobes. Aedeagus elongated, narrow, slightly curved medially and broadened distally. Vesica membranous, short and broad, with several diverticula: 1st medial diverticulum elongated, sack-like with rounded tip, its distal half weakly granulated; 2nd medial diverticulum bilobate, its inner lobe covered with numerous variously sized short but robust cornuti, outer lobe weakly granulated; 3rd medial diverticulum long, covered with numerous variously sized short but robust trigonal cornuti; 4th medial diverticulum small, globular, covered with small trigonal cornuti; 5th medial diverticulum broadly globular, its outer surface with broad cluster of small, trigonal cornuti of various sizes; basal diverticulum absent; distal plate of vesica broad, trigonal with slightly convex outer margin, heavily sclerotized. Female genitalia (Figs 31 , 32 ). Ostium bursae broad. Ductus bursae dorso-ventrally flattened, sclerotized, its lateral margins more weakly sclerotized than medial part; posterior section of ductus bursae slightly broadened, with several narrow longitudinal subostial folds. Corpus bursae broad, sac-like, with posterior section moderately sclerotized with wrinkled posterior margin ventrally, and reniform signum dorsally; border between posterior and anterior sections of corpus bursae weakly sclerotized, with a band of short scobination; anterior section of corpus bursae thick and membranous, with a band-like signum surrounded by a rugose area. Appendix bursae weakly sclerotized and granulated, short, conical, situated postero-laterally, directed posteriorly and curved inwards. Apophyses long and thin, apophyses posteriores thinner and ca 1.8 times longer than apophyses anteriores. Papillae anales broad, trapezoidal, weakly setose.

Distribution.

The new species is known from northeastern India (Sikkim, Darjeeling, and Assam) ( Kirti and Singh 2016, as B. orientalis bigamica ), southeastern India, and Nepal (present study).

Etymology.

The Kirata are the people inhabiting the Himalayas and northeastern India.

Figures

Figures 11 - 20. Barsine spp.: adults 11 - 18 B. kirata sp. nov. 11 holotype male, northeastern India (MWM / ZSM) 12 paratype male, Nepal (MWM / ZSM) 13 paratype male, Nepal (MWM / ZSM) 14 paratype female, Nepal (MWM / ZSM) 15 paratype male, Nepal (MWM / ZSM) 16 paratype female, Nepal (MWM / ZSM) 17 paratype male, southeastern India (NZCZSI) 18 paratype male, southeastern India (NZCZSI) 19, 20 B. defecta: 19 male, N India (MWM / ZSM) 20 male, N India (MWM / ZSM).

Figures 25 - 28. Barsine kirata sp. nov., male genitalia 25 holotype, northeastern India, slide MWM 35702 Volynkin 26 paratype, eastern Nepal, slide MWM 33937 Volynkin 27 paratype, central Nepal, slide MWM 33918 Volynkin 28 paratype, southeastern India, prep. H. S. Datta.

Figures 29 - 32. Barsine spp.: female genitalia 29 B. germana, Nepal, slide MWM 33923 Volynkin 30 B. germana, northern Myanmar, slide MWM 33920 Volynkin 31 B. kirata sp. nov., paratype, Nepal, slide MWM 33944 Volynkin 32 B. kirata sp. nov., paratype, Nepal, slide MWM 33938 Volynkin.

Figures 1 - 10. Barsine germana: adults 1 holotype male, NE India (NHMUK) 2 male, northeastern India (MWM / ZSM) 3 female, northeastern India (MWM / ZSM) 4 Holotype male of B. thomasi (NZCZSI) 5 holotype male of B. valvalis (NZCZSI) 6 male, northeastern India (MWM / ZSM) 7 male, C Nepal (MWM / ZSM) 8 male, northeastern India (MWM / ZSM) 9 male, northern Myanmar (MWM / ZSM) 10 female, northern Myanmar (MWM / ZSM).

Figures 21 - 24. Barsine germana: male genitalia 21 northeastern India, slide MWM 33964 Volynkin 22 Nepal, slide MWM 33962 Volynkin 23 holotype of B. thomasi, northern India, prep. H. S. Datta 24 holotype of B. valvalis, northeastern India, prep. H. S. Datta.