Barsine dao Volynkin, Černý & Huang, 2019

Volynkin, Anton V., Černý, Karel & Huang, Si-yao, 2019, A review of the Barsine perpallida-B. yuennanensis species-group, with descriptions of six new species (Lepidoptera: Erebidae: Arctiinae), Acta Entomologica Musei Nationalis Pragae 59 (1), pp. 273-293 : 290-293

Barsine dao Volynkin, Černý & Huang , sp. nov.

( Figs 25–28 , 46, 47 , 57 )

Type locality. N Vietnam, 1600m, Mt. Fan-si-pan (N), Cha-pa, 22.17°N 103.44°E.

Type material. HOLOTYPE ( Figs 25 , 46 ):♂, “N-Vietnam 1600m / Mt. Fansi-pan ( Nord ) / Cha-pa, Primärurwald [primary forest] / 22.17’’N 103.44’’E / 25–30.III.1995 / leg. V.Sinjaev & / A.Schintlmeister ”,slide MWM 31552 Volynkin ( MWM / ZSM) . PARATYPES: VIETNAM: 2♂♂ 1♀, same data as in the holotype, slide MWM 35664 (♂) Volynkin ( MWM / ZSM); 27 ♀♀, same locality, but 20–30.iv.1995, leg. V. Sinjaev & local collectors, slide MWM 31553 (♀) Volynkin ( MWM / ZSM); 1 ♂, North Vietnam, Prov. Lao Cai, Plateau Nr. 1, 2170 m, Fansipan, leg. Binh, coll. S. Löffler, slide MWM 31548 (♂) Volynkin ( MWM / ZSM); 1 ♂, N Vietnam, Fan-si-pan Mts., W side, near Cha-pa, 1600–1800 m, 22°20′N 103°40′E, V.1995, leg. local collectors, ex coll. Schintlmeister ( MWM / ZSM); 1♀, same locality, but iv.1995, leg.Sinjaev & loc.coll.,ex coll.Schintlmeister ( MWM / ZSM); 2 ♂♂, N Vietnam, 1600 m, Mt. Fan-si-pan (North), Cha-pa, primary forest, 22.17°N 103.44°E, 20–30.vi.1995, leg. V. Sinjaev & local collectors ( MWM / ZSM). CHINA: 1 ♂, China, Yunnan, Dulong County, 60 km SE Wen Shan, 10 km SE Maguan, 2400 m, 30.iii.1999, leg. G. Müller, slide MWM 35663 (♂) Volynkin ( MWM / ZSM); 21♂♂, China, Yunnan,Pingbian Miao Autonomous County, Mts. Daweishan, 2100 m, 18.viii.2018, leg. Si-yao Huang ( SCAU);5♂♂, same locality and collector,but 19.viii.2018 ( SCAU); 1♂, China, Guangdong, Ruyuan Yao Autonomous County, Mts. Nanling, 997 m, 6.v.2017, leg. Min Wang ( SCAU); 1♂ 1♀, same locality, but 11.v.2018, leg. Si-yao Huang & Fu-hong Wei ( SCAU).

Diagnosis. Barsine dao ( Figs 25–28 ) is very similar externally to the typical form of B. yuennanensis ( Figs 21, 23 ), but can be distinguished by its slightly darker fore- and hindwing coloration, and slightly longer dashes of transverse lines. In addition, in B. dao the dashes of the antemedial and medial lines are connected in the cell, whereas in B. yuennanensis the antemedial and medial lines are well separated from each other. Nevertheless, reliable identification is often possible based on the genitalia structures only. The male genitalia of B. dao ( Figs 46, 47 ) differ clearly from those of B. yuennanensis ( Figs 42, 43 ) in distally narrower uncus, slightly broader juxta, more elongated valva, strongly narrowed tip of the medial costal process (evenly trigonal in B. yuennanensis ), narrower dorsal lobe of the distal saccular process, longer and apically narrower distal lobe of the distal saccular process, and the vesica structure. Compared to that of B. yuennanensis , vesica of B. dao has much larger basal diverticulum, globular 1 st medial diverticulum (hook-like curved in B. yuennanensis ), much broader 2 nd medial diverticulum without subdiverticulum and covered with a longitudinal cluster of larger cornuti, much larger 3 rd medial diverticulum covered with larger cornuti, broader 4 th medial diverticulum covered with larger cornuti, and broader 5 th medial diverticulum covered with larger cornuti. The female genitalia of B. dao ( Fig. 57 ) differ from those of B. yuennanensis ( Fig. 53 ) in horseshoe-like concavity of ostium bursae (absent in B. yuennanensis ), ductus bursae being slightly broadened anteriorly, broader and more rugose sclerotized posterior section of corpus bursae surrounded by a broad area of strong shortly spinulose scobination (in B. yuennanensis the scobination is weaker, its area is narrower and present only anteriorly), and larger appendix bursae.

Description. Adult ( Figs 25–28 ). Forewing length 15.5– 18.5 mm in males (18.5 mm in holotype) and 20.0–21.0 mm in females.Antennae of both sexes ciliate, with longer ciliae in males. Head and thorax from ochreous yellow to bright yellow; abdomen pale ochreous basally and ochreous yellow or bright yellow distally. Forewing ground color from ochreous yellow to bright yellow. Forewing pattern black.Antemedial and medial lines slightly curved, consist of elongated dashes on veins, situated closely to each other, sometimes their dashes connected in the cell; postmedial line curved, consist of elongated dashes on veins; subterminal area with a series of longitudinal dashes of various length on veins. In females pattern more diffuse, longitudinal dashes thinner and often fused to each other. Cilia as forewing ground color. Hindwing pale ochreous yellow. Male genitalia ( Figs 46, 47 ). Uncus narrow, laterally flattened, curved basally and subapically, with short claw-like tip. Tuba analis broad, membranous, subscaphium broad and setose. Tegumen short and moderately broad. Juxta large, broad, X-shaped. Vinculum short, more or less V-shaped, slightly curved laterally. Valva elongated, narrowed distally. Medial costal process broadly trigonal, with slightly curved outer margin; its distal part strongly tapered with blunt tip, directed ventrally. Distal costal process absent. Distal membranous lobe of valva narrow, short, apically rounded, directed distally. Sacculus broad, its basal process long, robust, curved dorsally, and pointed apically. Distal saccular process bilobate, its dorsal lobe short, narrow, with blunt tip, directed dorsally-distally; distal lobe of distal saccular process elongated, narrowly trigonal, with tapered apex, directed distally. Aedeagus slightly curved medially and broadened proximally. Vesica broad, its basal diverticulum short but very broad, membranous. 1 st medial diverticulum small, globular, granulated. 2 nd medial diverticulum large, conical, with broad basal part, bearing a longitudinal narrow cluster of short but robust trigonal cornuti of various size, directed distally. 3 rd medial diverticulum short, broad, conical, covered with short but robust trigonal cornuti of various size. 4 th medial diverticulum short, round, covered with short but robust trigonal cornuti of various size. 5 th medial diverticulum large, rounded, covered with short but robust trigonal cornuti of various size. Basal plate of vesica ejaculatorius broadly trigonal, heavily sclerotized. Female genitalia ( Fig. 57 ). Papillae anales broad, trapezoidal with rounded corners, setose.Apophyses long and thin, of equal length. Ostium bursae broad, with a deep horseshoe-shaped ventral concavity. Ductus bursae sclerotized, elongated, dorso-ventrally flattened, slightly broadened anteriorly, its posterior part with several broad longitudinal subostial folds. Corpus bursae short, sack-like, left part of its anterior half membranous, right part weakly granulated and bearing a round signum. Posterior half of corpus bursae sclerotized, with a large elliptical signum having longitudinal concavity; and strongly rugose area broadly surrounded by area of weak, shortly spinulose scobination. Appendix bursae large, conical, sclerotized, curved inwards, situated postero-laterally.

Etymology. In the traditional Chinese philosophy and religion, Dao is the natural order of the universe whose character one’s human intuition must discern in order to realize the potential for individual wisdom. Noun in apposition.

Distribution. The species is known from North Vietnam (Lào Cai Prov.) and the Chinese province of Yunnan.

Figures

Figs 25–32. Barsine spp., adults. 25–28 – B.dao sp. nov.: 25 – holotype♂, N Vietnam (MWM/ZSM); 26 –♂, China,Yunnan (MWM/ZSM); 27 – paratype ♂, N Vietnam (MWM/ZSM); 28 – paratype ♀, N Vietnam (MWM/ZSM); 29–30 – B. eurydice sp. nov. 29 – holotype ♂, N Vietnam (MWM/ZSM); 30 – paratype ♀, N Vietnam (MWM/ZSM). 31–32 – B. ruficollis (Fang, 1991): 31 – ♂, China, Yunnan (MWM/ZSM); 32 – ♀, China, Yunnan (MWM/ZSM).

Figs 45–47. Barsine spp., male genitalia. 45 – B. ruficollis (Fang, 1991), China, Yunnan, slide MWM 31544 Volynkin. 46–47 – B. dao sp. nov.: 46 – holotype, N Vietnam, slide MWM 31552 Volynkin; 47 – paratype, China, Yunnan, slide MWM 35663 Volynkin.

Figs 54–57. Barsine spp., female genitalia. 54 – B. nigrovena (Fang, 2000), China, Sichuan, slide NHMUK010313508 Volynkin (©NHMUK). 55 – B. eurydice sp. nov., paratype, N Vietnam, slide MWM 31555 Volynkin. 56 – B. ruficollis (Fang, 1991), China, Yunnan, slide MWM 31545 Volynkin. 57 – B. dao sp. nov., paratype, N Vietnam, slide MWM 31553 Volynkin.

Figs 17–24. Barsine spp., adults. 17–19 – B. hausmanni sp. nov.: 17 – holotype ♂, Thailand (MWM/ZSM); 18 – paratype ♂, Thailand (MWM/ZSM); 19 – paratype ♀, Thailand (MWM/ZSM). 20–22 – B. yuennanensis (Daniel, 1952): 20 – holotype ♂, China, Yunnan (ZFMK); 21 – paratype ♂, China, Yunnan (MWM/ZSM); 22 – paratype ♀, China, Yunnan (ZFMK). 23–24 – B. nigrovena (Fang, 2000): 23 – holotype ♂, China, Hubei (ICZAS); 24 – ♀, China, Shaanxi (CKC).

Figs 42–44. Barsine spp., male genitalia. 42 – B. yuennanensis (Daniel, 1952), holotype, China, Yunnan, slide AV1846 Volynkin. 43 – B. nigrovena (Fang, 2000), China, Hubei, prep. Huang. 44 – B. eurydice sp. nov., holotype, N Vietnam, slide MWM 31554 Volynkin.

Figs 48–53. Barsine spp., female genitalia. 48 – B. biformis sp. nov., paratype, Thailand, slide ZSM Arct. 155 / 2017 Volynkin. 49 – B. perpallida (Hampson, 1900), syntype of Diacrisia porthesioides Rothschild, 1910, India, slide NHMUK010315755 Volynkin (©NHMUK). 50 – B. laszloi sp. nov., paratype, Nepal, slide MWM 35760 Volynkin. 51 – B. hausmanni sp. nov., paratype, Thailand, slide MWM 31547 Volynkin. 52 – B. andromeda sp. nov., paratype, China, Shaanxi, slide MWM 31543 Volynkin. 53 – B. yuennanensis (Daniel, 1952), paratype, China, Yunnan, slide AV1843 Volynkin.