Viridiflavoritia Huang & Horie, 2024

Huang, Si-Yao, Horie, Kiyoshi, Zhang, Chao, Zhang, Xin-Yu & Espeland, Marianne, 2024, Viridiflavoritia koxiae (Lepidoptera, Zygaenidae, Chalcosiinae), a new genus and a new species from China, Zootaxa 5446 (3), pp. 441-449 : 442

Viridiflavoritia Huang & Horie , gen. n.

Figs 1–4 , 9, 10 , 13, 14 , 17, 20 , 22, 23

Type species: Viridiflavoritia koxiae Huang & Horie sp. n., by monotypy and present designation

Diagnosis. Viridiflavoritia gen. n. is characterized by the following autapomorphies: i) 8 th sternite in male narrow U-shaped with triangular inner process, ii) phallus W-like with distal end elongated and pointed upwards and iii) female genitalia with antrum fused with rectangular ostial plates lateral to it. In addition, Viridiflavoritia gen. n. can be distinguished from the related genera Pidorus Walker, 1854 (sensu stricto, type species P. glaucopis Drury, 1773 ) ( Figs 7, 8 , 12 , 16 , 19 ) and Soritia Walker, 1854 sensu lato (type species Chalcosia leptalina Kollar, 1844 , now a junior synonym of Chalcosia pulchella Kollar, 1844 ) ( Figs 5, 6 , 11 , 15 , 18, 21 ) by the combination of following characters: i) forewing postdiscal band extending from costa to tornus, similar to that in Pidorus , while in Soritia the discal band, when present, is situated more basally and ends beyond tornus, ii) 8 th sternite in male thoroughly well-sclerotized, similar to that in Soritia , while in Pidorus is only strongly sclerotized near its posterior end and iii) female genitalia lacking appendix bursae, similar to the externally similar bicolor species-group of the genus Soritia , while in Pidorus the appendix bursae is present.

Etymology. The generic name Viridiflavoritia is the aggregate of the Latin word “Viridiflava” meaning “green and yellow”, referring to the two most outstanding colors of the type species, and the generic name Soritia , referring to its similarities with a member of that genus. Gender is feminine.

Distribution. Southwestern and southern China. ( Fig. 25 )

Figures

FIGURES 1–8. Chalcosiinid adults. 1, Viridiflavoritia koxiae sp. n., holotype, male, Mt. Simian, Chongqing, China, ZSY178 (ZFMK); 2, ditto, paratype, male, ZSYKH02 (CHSY); 3, ditto, paratype, female, ZSY179 (CHSY); 4, ditto, paratype, female, Mt. Tianping, Guangxi, China (CCAU); 5, Soritia bicolor, male, Cherrapunji, Meghalaya, India, NHMUK014200149 (adult) & NHMUK010317819 (slide No.) (NHMUK, ©The Trustees of NHMUK); 6, ditto, female, NHMUK014200150 (adult) & NHMUK014330969 (slide No.) (NHMUK, ©The Trustees of NHMUK); 7, Pidorus glaucopis, male, Pedong, Darjeeling, India, ZFMK Lep153467 (ZFMK); 8, ditto, female, Assam, India, ZFMK Lep153462 (ZFMK).

FIGURES 9–12. Male genitalia of Chalcosiinid species. Depositories of the genitalia preparation and slide: 9, 12 in ZFMK, 10 in CHSY, 11 in NHMUK.

FIGURES 13–16. 8th abdominal segments of Chalcosiinid species with tergite on the left and sternite on the right. Depositories of the genitalia preparation and slide: 13, 16 in ZFMK, 14 in CHSY, 15 in NHMUK.

FIGURES 17–21. Female genitalia of Chalcosiinid species. Depositories of the genitalia preparation and slide: 17 in CHSY, 18 in NHMUK, 19 in ZFMK. 20, 21 = enlarged view of the ostium plate and surrounding structures of Figs. 17 & 18.

FIGURES 22–25. Living adults, habitat and distribution map of Viridiflavoritia koxiae gen. n. & sp. n. 22, male, photographed by Li Yang; 23, female, photographed by Yuan-sheng Li; 24, habitat in Mt. Simian, Chongqing; 25, distribution map.