Barsine nigralba ( Hampson, 1894 )

Volynkin, Anton V., Černý, Karel & Huang, Si-Yao, 2019, A review of the Barsine hypoprepioides (Walker, 1862) species-group, with descriptions of fifteen new species and a new subspecies (Lepidoptera, Erebidae, Arctiinae), Zootaxa 4618 (1), pp. 1-82 : 16-17

Barsine nigralba ( Hampson, 1894)

( Figs 56–63 , 176, 177 , 239 )

Miltochrista nigralba Hampson, 1894 , The Fauna of British India, including Ceylon and Burma (Moths), 2: 109 (Type locality: [ Myanmar] “Bernardmyo; E. Pegu ”).

Type material examined. Syntypes ( Fig. 56 ): 1 ♂, printed label [N Myanmar, Mandalay Region] “ Bernardmyo, Burmah , 5500–7000 ft., May 1890, W. Doherty ” / handwritten label “ Miltochrista nigralba Hmpsn. type ♂ ” / round printed label with a red ring “Type” / printed label “ Collection H.J. Elwes ” / printed label “Rothschild Bequest B.M. 1939-I ” / label with QR-code “NHMUK010604385” (Coll. NHMUK); 1 ♂, [N Myanmar, Mandalay Region] “Ber- nardmyo, Burmah, 5500–7000 ft., May 1890, W. Doherty ” (Coll. NHMUK); 1 ♀, printed label [C Myanmar, Bago Region] “East Pegu, 500 ft., March–April 1890, W. Doherty. ” / handwritten label “ Miltochrista nigralba Hmpsn. type ♀ ” / printed label “ Collection H.J. Elwes ” / printed label “Rothschild Bequest B.M. 1939-I ” / label with QRcode “NHMUK010604412” (Coll. NHMUK) .

Other material examined: MYANMAR: 1 ♂, [N Myanmar, Kachin State] Upper Burma: Hpimaw Fort, Nr. Myitkyina , 8000 ft., Capt. A.E. Swann [leg.] / Brit. Mus. 1923–488, slide BMNH(E) Arct. 6515 ♂ Volynkin ( Coll. NHMUK) ; 1 ♀, Upper Burma: Htawgaw, 6000 ft., Capt. A.E. Swann [leg.] / Brit. Mus. 1923–488, slide BMNH(E) Arct. 6514 ♀ Volynkin ( Coll. NHMUK) ; THAILAND: 1 ♂, Thailand , Changwat Chiang Mai, 20 km NW of Mae Ai, 1650 m, 09.IX.1999, leg. A. Szabó & Z. Czere (Coll. MWM/ ZSM) ; 2 ♂, Thailand, Chiang Mai, Chang Wat , 6 km SE of Pang Faen, 1100 m, 16.IX.1999, leg. A. Szabó & Zita (Coll. MWM/ ZSM) ; 3 ♂, 2 ♀, Thailand, Changwat Chiang Mai, 23 km NW of Sop Kha, 1 km E of Kop Dong , 1650 m, 5.VIII.1999, leg. T. Csővári & L. Mikus, (Coll. MWM/ ZSM) ; 1 ♀, N Thailand / Chiangmai Prov., NE Chiangmai , Doi-Saket Distr. , ESE below Hang , Doi San Yao , ca. 1260 m NN, 20/18 °C, LF, 12.III.1986 / 18.30–0.30 h, leg. W. Nässig & H. Bänziger (Coll. MWM/ ZSM) ; 1 ♂, 2 ♀, N Thailand, Chiang Mai prov., Fang distr., Doi Pha Hom Pok , 1630 m, 20°07´20´´N, 99°10´52´´E, 24.IV.2006, leg. K. Černý, slide MWM 33640 (♂) Volynkin ( Coll. MWM/ ZSM) ; 1 ♀, Thailand, Changwat Chiang Mai, Mt. Doi Phahompok , 10 km NW of Fang, 1700 m, 8.VIII.1999, leg. T. Csővári & L. Mikus, (Coll. MWM/ ZSM) ; 6 ♂, 2 ♀, Thailand, Changwat Chiang Mai, Mt. Doi Phahompok, 16 km NW of Fang, 2000 m, 6–7.VIII.1999, leg. T. Csővári & L. Mikus, slide MWM 33638 (♂) Volynkin ( Coll. MWM/ ZSM) ; 1 ♀, same locality and collectors, but 12.IX.1999 (Coll. MWM/ ZSM) ; 1 ♀, Thailand, Changwat Chiang Mai, Mt. Doi Phahompok, 17 km NW of Fang, 2100 m, 15.VIII.1999, leg. T. Csővári & L. Mikus, slide MWM 33639 (♀) Volynkin ( Coll. MWM/ ZSM) ; 1 ♀, Thailand , Changwat Chiang Mai, Mt. Doi Inthanon NP, 2300 m, 17.X.2000, leg. local collector (Coll. MWM/ ZSM) ; 5 ♂, 1 ♀, Thailand, Changwat Nan, 30 km E Pua, 1700 m, 14–15.IX.1999, leg. A. Szabó & Z. Czere, slide MWM 33642 (♂) Volynkin ( Coll. MWM/ ZSM) ; 1 ♀, same locality, but 20–21.VI.1998, leg. István Soós & Atilla Szabó, slide MWM 33643 (♀) Volynkin ( Coll. MWM/ ZSM) ; 1 ♀, Thailand , Changwat Nan, 5 km N of Bo Luang, 1000 m, 12.XI.1999, leg. Márton Hreblay (Coll. MWM/ ZSM) ; 1 ♂, Thailand , Changwat Nan, 22 km N of Bo Luang, 1100 m, 30.III.1998, leg. Tibor Csővári & Pál Stéger (Coll. MWM/ ZSM) ; 1 ♂, 2 ♀, same locality, but 18–19.VI.1998, leg. István Soós & Attila Szabó (Coll. MWM/ ZSM) ; 7 ♂, [E] Thailand, [prov. Nakhon Ratchasima] Plateau Korat [Khorat], Korat , 14°48´N, 102°07´E, VIII.1996, leg. Steinke & Lehmann (Coll. MWM/ ZSM) ; LAOS: 1 ♂, Laos, Luang Prabang, Phakeng Ngai , 1220 m, 19°29’27’’N 102°24’21’’E, 21.IV.2017, leg. K. Černý, slide AV4637 ♂ Volynkin ( Coll. CKC) ; 1 ♂, Laos , prov. Phongsali, 5 km N Ban Yo, 890 m, 21°31’N 101°7’E, 27.IV.2017, leg. K. Černý, slide AV4641 ♂ Volynkin ( Coll. CKC) ; 3 ♂, Laos, Phu Soai Dao , 1250 m, VI.1996, leg. Steinke & Lehmann (Coll. MWM/ ZSM) ; 1 ♂, Laos, Phu Soai Dao , 650 m, VI.1996, leg. Steinke & Lehmann (Coll. MWM/ ZSM) ; VIETNAM: 1 ♂, North Vietnam, Mt. Fan-si-Pan, Cha Pa , 1700 m, NN, 22.15´N, 103.46´E, 05–29.V.1993, leg. Sinjaev & Afonin, (Coll. MWM/ ZSM) ; 2 ♂, North Vietnam, Tam Dao , 60 km NW Hanoi, 1200 m, 21.34´N, 105.20´E, 1–15.XI.1992, sec. forest, leg. Sinjaev & Simonov, ex coll. A. Schintlmeister (Coll. MWM/ ZSM) ; 4 ♂, same locality and collectors, but 1–5.V.1993 (Coll. MWM/ ZSM) ; 1 ♀, 14–19.III.2012, Central Vietnam, Gia Lai prov., K’Bang Distr., Dak Roong Comm. , vill. Kon Loc , Kon Ka Kinh NP, 14°42.602’N 108°38.062’E, 1050 m, V. Zolotuhin leg. (Coll. SZMN) ; 4 ♂, 4 ♀, IV.2016, Central Vietnam, Prov. Thua Thien-Hue, Bach Ma Mt. , 1400 m, leg. Le Luong Thanh, slides AV2328 ♂, AV2329 ♀ Volynkin ( Coll. CAV) ; 1 ♂, 1 ♀, same locality and collector, but III.2016 (Coll. CAV) ; 25 ♂, 12 ♀, S Vietnam, Plateau Tay Nguyen, Mt. Ngoc Linh , 900–1400 m, 15°02´N, 107°59´E, 10–25.VIII.1996, leg. Sinjaev & Afonin, slides MWM 33633 (♂), MWM 33634 (♂) Volynkin ( Coll. MWM/ ZSM) .

Diagnosis. Forewing length is 11–12.5 mm in males and 11.5–13 mm in females. This species is highly polymorphic: the intensity of the suffusion in the subterminal area, the length of the postmedial line dentation and the length and width of the longitudinal strokes in the hindwing subterminal area significantly vary even within the same geographical areas (e.g., mountain). Externally, B. nigralba is very similar to its closest relative B. fasciata , but differs by the broader medial and antemedial line and spots of subbasal area, the longer dentation of the postmedial line (especially on veins M 1 and Cu 2), and the broader, more diffuse longitudinal strokes on veins in the submarginal area of hindwing. The male genitalia of B. nigralba are very similar to those of B. fasciata and differ by the distally broader valva, broader vesica and slightly more robust cornuti in vesica only. The female genitalia of B. nigralba differ from those of B. fasciata by the smaller signum, which is elliptical with a medial concavity (while that is much larger and arrowhead-shaped in B. fasciata ), and the slightly smaller appendix bursae.

Distribution. China (Sichuan, Yunnan) ( Fang 2000), Myanmar, Thailand, Laos, Vietnam ( Černý & Pinratana 2009).

Figures

FIGURES 56–70. Barsine spp., adults. 56, B. nigralba, syntype ♂, Myanmar (©NHMUK); 57, ditto, ♂, N Thailand (MWM/ ZSM); 58, ditto, ♀, Myanmar (©NHMUK); 59, ditto, ♂, N Thailand (MWM/ZSM); 60, ditto, ♀, N Thailand (MWM/ZSM); 61, ditto, ♂, N Laos (CKC); 62, ditto, ♂, S Vietnam (MWM/ZSM); 63, ditto, ♀, C Vietnam (CAV); 64, B. fasciata, holotype ♀, China, Sichuan (©NHMUK); 65, ditto, ♂, N Vietnam (MWM/ZSM); 66, ditto, ♂, China, Hainan (MWM/ZSM); 67, ditto, ♀, N Thailand (CKC); 68, B. amaculata, holotype ♂, S Vietnam (©NHMUK); 69, ditto, paratype ♂, S Vietnam (CKC); 70, ditto, paratype ♀, S Vietnam (CKC).

FIGURES 176–179. Barsine spp., male genitalia. 176, B. nigralba, N Thailand, slide MWM 33640 Volynkin; 177, ditto, N Laos, slide AV4637 Volynkin; 178, B. fasciata, N Thailand, slide AV2764 Volynkin; 179, ditto, N Vietnam, slide MWM 33629 Volynkin.

FIGURES 234–239. Barsine spp., female genitalia. 234, B. prominens, NE India, slide MWM 31790 Volynkin; 235, B. wernerthomasi, paratype, NE India, slide AV1917 Volynkin; 236, B. cao, paratype, N Vietnam, slide MWM 33626 Volynkin; 237, B. speideli, paratype, China, Hainan Isl., slide MWM 31788 Volynkin; 238, ditto, paratype, C Thailand, slide AV2775 Volynkin; 239, B. nigralba, N Thailand, slide MWM 33643 Volynkin.