Cyana dubernardi, Volynkin & Černý & Huang & Saldaitis, 2023

Volynkin, Anton V., Černý, Karel, Huang, Si-Yao & Saldaitis, Aidas, 2023, Taxonomic review of the Cyana adelina (Staudinger) species-group (Lepidoptera: Erebidae: Arctiinae) with descriptions of three new species and one new subspecies from Laos, Thailand and China, Zootaxa 5323 (4), pp. 477-498 : 485

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.

Figures

FIGURE 61. Distribution map of Cyana spp. in E and SE Asia.

FIGURES 18–25. Cyana spp.: adults. Depositories of the specimens: 18 and 19 in CKC; 20 and 21 in NHMUK (©The Trustees of NHMUK); 22 in MNHN (photo by unknown photographer, © MNHN); 23–25 in MWM/ZSM.

FIGURES 34–37. Cyana spp.: male genitalia. Depositories of the specimens dissected: 34 in MfN; 35 in ZFMK; 36 in MWM/ ZSM; 37 in NHMUK (©The Trustees of NHMUK).

FIGURES 49–53. Cyana spp.: female genitalia. Depositories of the specimens dissected: 49 in MfN; 50 in MWM/ZSM; 51 in ZFMK; 52 in CKC; 53 in NHMUK (©The Trustees of NHMUK).

FIGURES 38–41. Cyana yunnanensis sspp.: male genitalia. Depositories of the specimens dissected: 38 in ZFMK; 39 in CKC; 40 in MWM/ZSM (ex CKC); 41 in GMF-B.