Collitoptyx (Confusoptyx) duplex Volynkin & Černý, 2024, sp. n.

Collitoptyx (Confusoptyx) duplex sp. n. https://zoobank.org/ urn:lsid:zoobank.org:act: 96B1C208-72CB-4A18-AF6A-182B22A0B4FA (Figs 21–24, 44, 45, 59, 60) Type material. Holotype (Figs 21, 44): male, “ Myanmar (Burma) | 50 km E Putao | env. Nan Thi village | 950 m, 11–16. V. 1996 | leg. Murzin & Sinjaev [recte: Sinyaev] | Museum Witt” / “Genitalpräparat | Heterocera | Nr. 35.802 | Museum Witt München” (MWM/ ZSM). Paratypes. INDIA: 1 male, 1 female, W Meghalaya, Garo Hills, Nokrek National Park, 25°40'N 91°04'E, 1150m, 2–13.vii.1997, Afonin & Sinyaev leg., gen. prep. Nos.: MWM 37.518 (male), MWM 37.519 (female) (MWM/ ZSM); 1 male, Sikkim, Pemayangtse unterhalb [below] Rimbi, 26.viii.1988, Lf [light trap], Dr. W. Thomas leg., gen. prep. No.: MWM 35.798 (MWM/ ZSM); 1 male, 1 female, Gopaldhara, Darjeeling, 3440–5800’ (H. Stevens), 11.ix.[19]18 / Rothschild Bequest B.M. 1939-1, unique IDs: NHMUK010604518, NHMUK010292471, gen. prep. No.: NHMUK010313295 (male) (NHMUK); MYANMAR: 1 male, 50 km E Putao, env. Nan Thi Village, 950m, 11–16.v.1998, Murzin & Sinyaev leg., gen. prep. No.: MWM 35.802 (male) (MWM/ ZSM); THAILAND: 1 male, Changwat Chiang Mai, Mt. Doi Phahompok, 19 km NW of Fang, 1900m, 3.iv.1998, Tibor Csővári & Pál Stéger leg., gen. prep. No.: MWM 35.822 (male) (MWM/ ZSM); 2 males, Changwat Chiang Mai, Mt. Doi Phahompok, 16 km NW of Fang, 2000 m, 2.iv.1998, Tibor Csővári & Pál Stéger leg. (MWM/ ZSM); VIETNAM: 1 male, Tam Dao (sec. forest), 60 km NW Hanoi, 950m, 21°34'N 105°20'E, V. Sinyaev leg., gen. prep. No.: MWM 35.891 (male) (MWM/ ZSM); 12 males, 1 female, 1600m, Mt. Fan-si-pan (North), Cha-pa, Primärurwald [primary forest], 22°17'N 103°44'E, 20–30.iv.1995, V. Sinyaev & einh. Samml. [local collectors] leg., gen. prep. Nos.: MWM 35.889 (male), MWM 35.890 (female) (MWM/ ZSM); 3 males, Mt. Fan-si-pan, Cha pa, 2400 m NN (22°15'N, 103°46'E), 8–29.v.1993, Sinyaev & Simonov leg. (MWM/ ZSM); 1 male, Mts. Fan-si-pan, W side, Chapa, 22°20''N, 103°40''E, 1600– 1800 m, iv.1994, Sinyaev & loc. coll. leg. (MWM/ ZSM); 1 male, same data as previous (CKC); 2 males, 1 female, Vietnam sept., Phansipan [Fansipan], Sapa, 1000m, V. 1990, Kubáň leg. (CKC). Note. The species displays the variability in its male genitalia structures, namely in the length of the distal saccular process and the number of diverticula in the vesica (Figs 44, 45). Diagnosis. The forewing length is 17.5–18.5 mm in males and 22.0–23.0 mm in females. Collitoptyx duplex sp. n. is externally reminiscent of the partially sympatric C. fraterna sp. n., from which the male of the new species can be distinguished by the broader forewing, the shorter and distally broader medial spot, and the smaller costal spot of the forewing. The females of the two species are very similar although C. duplex sp. n. is somewhat larger than C. fraterna sp. n., and reliable identification requires the examination of the genitalia structures. The comparison with another partly sympatric species, C. meghalaya sp. n. is provided above in its diagnosis. The genital differences between C. duplex sp. n. and other congeners are listed above in the diagnosis of the subgenus Confusoptyx subgen. n. Distribution. The new species is widespread from Northeast India (Sikkim, north of West Bengal and Meghalaya) through northern Myanmar (Kachin State) and Thailand (Chiang Mai Province) to Northern Vietnam (Lào Cai and Tuyên Quang Provinces). Etymology. The specific epithet is the Latin adjective meaning ‘dual’ and referring to the presence of two forms having one and two diverticula in the male vesica.