Cyana dubernardi Volynkin & Černý & Huang & Saldaitis 2023, sp. n.

Cyana dubernardi sp. n.

(Figs 20, 21, 37, 53)

Type material. Holotype (Figs 20, 37): male, [China, Yunnan Prov., Yanmenxiang] “Tse Kou | R P.[ère] Dubernard | 1895” / “Ex Oberthür Coll. | Brit. Mus. 1927–3” / QR-code label with a unique ID “ NHMUK 010918587 ” / “Slide | NHMUK010316330 ” (NHMUK).

Paratypes. CHINA: 1 female, same data as holotype, unique ID: NHMUK010918588, gen. prep. No.: NHMUK010316331 (prepared by Volynkin) (NHMUK); 2 males, [China, Sichuan, Ya’an-Kangding road] Siao-Lou, gen. prep. Nos.: AV2093 and AV2094 (prepared by Volynkin) (ZFMK).

Diagnosis. The forewing length is 14.0–14.5 mm in males and 16.0 mm in the female. Cyana dubernardi sp. n. (Figs 20, 21) is externally vaguely reminiscent of pale specimens of C. griseilinea (Figs 22–25) but can be distinguished from this species by the presence of two discal spots in the male (whereas there is only one but larger, comma-shaped spot in C. griseilinea), and the thinner and more distinct, bronze-brown transverse lines (they are greyish-brown in the congener), of which the antemedial line is less bent outwards along the anal margin, and the medial part of the postmedial line is curved outwards and W-like zigzagged. Additionally, the terminal area of the forewing of the new species is intensely suffused with grey whereas it is white in C. griseilinea, and the discal spot on the hindwing is present (absent in the congener). Despite the external similarity to C. griseilinea, the genitalia structures of both sexes of C. dubernardi sp. n. are closely similar to C. yunnanensis. In the male genitalia (Fig. 37), the new species differs from C. yunnanensis (Figs 38–41) in the narrower serrulate plates of the anellus, and the less elongate and semiglobular distal diverticulum, whereas it has several tiny subdiverticula in the similar congener. Compared to C. yunnanensis (Figs 51, 52), the female genitalia of the new species (Fig. 53) have a narrower ductus bursae with an anteriorly more tapered sclerotised plate, a shorter and narrower posterior gelatinous section of the corpus bursae lacking the lateral protrusion, a smaller signum bursae, and a shorter and narrower bulla.

Distribution. Western Sichuan and north-western Yunnan Provinces of China (Fig. 61).

Etymology. The new species is named after father Jules Étienne Dubernard (1840–1905), renowned French missionary and collector of the type series. The name is a noun in the genitive case.