Barsine perpallida (Hampson, 1900)

(Figs 5–7, 34, 35, 49)

Miltochrista perpallida Hampson, 1900:495, pl. 32, fig. 22 (replacement name for Korawa pallida Moore, 1878).

= Korawa pallida Moore, 1878: 12 (original description). Type locality: “Darjiling” [= NE India, north of West Bengal, Darjeeling]). Junior secondary homonym of Calligena pallida Bremer, 1864, currently placed in Miltochrista .

= Diacrisia porthesioides Rothschild, 1910: 186 (original description). New junior subjective synonym. Type locality:[NE India], “ Sikkim ”

Type material examined. Korawa pallida . SYNTYPES (Figs 5, 6): 1 ♂, “Darjiling [Darjeeling] / 1866” (handwritten) // “ Korawa / pallida ♂ / (type) Moore” (handwritten) // “Moore Coll. / 94–106” (printed) // round printed label with a red circle “Type” / printed label with QRcode “NHMUK010604654” (NHMUK); 1 ♀, “Darjiling [Darjeeling] / (at light) / May [18]64” (handwritten) // “ Korawa / pallida ♀ / (type) Moore” (handwritten) // “Moore Coll. / 94–106” (printed) / printed label with QR-code “NHMUK010604655” (NHMUK); 1 ♂, “Darjiling [Darjeeling] / 1864” (handwritten) // “coll. Atkinson” (printed) // “Coll. / Staudinger” (printed) (ZMB).

Diacrisia porthesioides: SYNTYPES (Figs 6, 49): 1♀, “ Sikkim (printed) / 6.5.89 (handwritten) / J.G. Pilcher” (printed) // pink handwritten label “ Diacrisia / porthesioides / Rothsch. Type” // printed label “Rothschild / Bequest / B.M. 1939-1.” // printed label “Rothschild / Bequest / B.M. 1939-1.” // round printed label with a red circle “Type” // printed label with QR-code “NHMUK010918008” (NHMUK); 1 ♀, “ Sikkim (printed) / 29.4.89 (handwritten) / J.G. Pilcher” (printed) // printed label “Rothschild / Bequest / B.M. 1939-1.” // printed label with QR-code “NHMUK010918009” (NHMUK); 1♀, “ Sikkim (printed) / 10.5.89 (handwritten) / J.G. Pilcher” (printed) // printed label “Rothschild / Bequest / B.M. 1939-1.” // printed label with QR-code “NHMUK010918100”, slide NHMUK010315755 Volynkin (NHMUK).

Other material examined. INDIA: WEST BENGAL: 1♂, Darjeeling.July, 1886.H.J.Elwes./ Collectio H.J. Elwes / Rothschild Bequest B.M.1939-1. / NHMUK010604657, slide BMNH(E) Arct. 4665♂ (NHMUK); 2 ♀♀, Darjeeling, Ex coll. Lidderdale (NHMUK); 1 ♀, Darjeeling, 1864, slide BMNH(E) Arct. 4666♂ (NHMUK); 1 ♀, Darjeeling, 26.VIII.1886, H.J. Elwes (NHMUK); 1 ♀, Darjeeling (at light) May [18]64 (NHMUK); 2 ♀♀, Darjeeling, Dr.Lidderdale, 19–54 (NHMUK). NEPAL: 1♂, Nepal, Prov. Nr.3 East, Jubing, 1600 m, 6.v.1994, leg.W.Dierl, slide ZSM Arct. 230/2017♂ Volynkin (ZSM). CHINA: XIZANG: 1♂ 1♀, 24.v.2018, altitude 2450 m, Cuona County, Shannan Prefecture, Tibet, leg. Tian-peng Chen, preparations in glycerol by Huang (SCAU).

Diagnosis. Forewing length is 16.0–19.5 mm in males and 21.0–22.5 mm in females. Externally, the species (Figs 5–7) differs from the patternless form of B. biformis (Figs 3, 4) in its larger size and paler forewing ground color; B. perpallida also resembles B. hololeuca and B. flavicollis, but differs from B. hololeuca (Fig. 8) in its pale ochreous patagia, slightly darker forewing ground color and ciliate male antennae (shortly bipectinate in B. hololeuca); from B. flavicollis (Fig. 9) it differs in its slightly darker forewing ground color and ciliate male antennae (shortly bipectinate in B. flavicollis). The male genitalia of B. perpallida (Figs 34, 35) differ from those of B. hololeuca (Fig. 36) and B. flavicollis (Fig. 37) in their smaller juxta, distally broadened valva with a large distal costal process, trigonal medial costal process directed distally, much longer basal saccular process, and different configuration of diverticula of vesica. The female genitalia of B. perpallida (Fig. 49) differ from those of B. biformis (Fig. 48) in significantly narrower ductus bursae, smaller corpus bursae without signa and scobination, and longer appendix bursae.

Remarks. This species was considered by HAMPSON (1900) to be a member of the genus Miltochrista, and the name M. perpallida was introduced as a replacement for the name M. pallida Moore, 1878, which was a junior secondary homonym of Miltochrista pallida (Bremer, 1864) . According to the article 59.3 of ICZN (1999), the name M. pallida Moore is permanently invalid as it was replaced before 1961 and the name M. perpallida was in use after its introduction (HAMPSON 1914; STRAND 1922; FANG 1991, 2000; SINGH et al. 2014; ČERNÝ & PINRATANA 2009).

Diacrisia porthesioides was described on the base of female syntypes from Sikkim (ROTHSCHILD 1910). Examination of their genitalia proved their conspecificity with B. perpallida .

Distribution. North East India (Sikkim, north of West Bengal), East Nepal (Solukhumbu Distr.), China (Xizang). The records for Yunnan (FANG 1991, 2000) need confirmation.