Cyana yunnanensis regia, 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 : 483-485

Cyana yunnanensis regia ssp. n.

( Figs 15–19 , 40, 41 , 52 )

Type material. Holotype ( Figs 15 , 40 ): male, “N. Thailand | Chiang Mai, Fang | Doi Ang Khang , 1425m | 29°54’10’’N [19°54’10’’N], 99°2’28’’E | ♀ 26.V.2011, ex ovo K. Cerný [Černý]” / “Slide | AV3915ϐ | A. Volynkin ” ( MWM / ZSM, ex CKC).

Paratypes. THAILAND: 22 males, 12 females, same data as holotype, gen. prep. No.: AV3918 (female) (prepared by Volynkin) ; 2 females, same data as previous ( GMF-B) ; 6 males, 8 females, same locality and collector as previous but 25–26. V .2011, gen. prep. Nos.: AV3917, AV6470 (males) (prepared by Volynkin); 6 males, 1 female, same locality as previous but 23–27.VII.2006, T . Ihle leg., gen. prep. No.: AV3916 (male) (prepared by Volynkin); 4 males, 4 females, same locality and collector as previous but 19–23.IX.2006 ; 4 males, 1 female, same locality and collector as previous but 5. VI .2006, gen. prep. No.: AV6471 (female) (prepared by Volynkin); 2 males, same locality and collector as previous but 11–15.IX.2007 ; 1 male, Chiang Mai [ Province ], Doi Inthanon NP, 1416m, 18°30’59’’N 98°28’13’’E, 30.IV.2006, K. Černý leg. ; 1 male, same locality and collector as previous but 6–7. VI .2005 (all in CKC) ; LAOS: 1 male, 1 female, Xiangkhouang Province, Tham Piew Cave , 600m, mid-June to mid-July 2009, gen. prep. No.: AV6744 (male) (prepared by Volynkin) ( GMF-B) .

Note. The coordinates contained on the labels of the reared specimens from ‘Doi Ang Khang’, including the holotype, have a typo (29°54’10’’N instead of 19°54’10’’N), and the correct value is provided in the label citations in square brackets.

Diagnosis. The forewing length is 10.5–11.5 mm in males and 12.5–14.0 mm in females. Cyana yunnanensis regia ssp. n. ( Figs 15–19 ) is externally distinguished from the nominate subspecies ( Figs 7–14 ) by its slightly smaller size, and the less posteriorly curved postmedial line in both sexes. In the male genitalia of the new subspecies ( Figs 40, 41 ), the subbasal diverticulum is considerably more elongate, and the terminal diverticulum is larger than the corresponding structures of C. yunnanensis yunnanensis ( Figs 38, 39 ). The female genitalia of the two subspecies display no remarkable differences ( Figs 51, 52 ).

Distribution. Northern Thailand (Chiang Mai Province) and Northern Laos (Xiangkhouang Province).

Etymology. The subspecific epithet is derived from the Latin ‘regius’ meaning ‘royal’ and refers to the type locality of the new subspecies, The Royal Agricultural Station Angkhang. The name is an adjective in the nominative singular in apposition ( Fig. 60 ).

Figures

FIGURE 60. Distribution map of Cyana spp. in E and SE Asia.

FIGURES 9–17. Cyana yunnanensis sspp.: adults. Depositories of the specimens: 9 and 10 in ZFMK; 11, 12 and 16 in CKC; 13 and 14 CHSY; 15 in MWM/ZSM (ex CKC); 17 in FMF-B.

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 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.

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 1–8. Cyana spp.: adults. Depositories of the specimens: 1 and 2 in MfN; 3 and 7 in NHMUK (©The Trustees of NHMUK); 4–6 in MWM/ZSM; 8 in CKC.