Cyana atlanteia N. Singh, Volynkin, Kirti & Datta, 2020

Singh, Navneet, Volynkin, Anton V., Kirti, Jagbir Singh, Datta, Harvinder Singh & Ivanova, Maria S., 2020, A review of the genus Cyana Walker, 1854 from India, with descriptions of five new species and three new subspecies (Lepidoptera: Erebidae: Arctiinae: Lithosiini), Zootaxa 4738 (1), pp. 1-93 : 33

Cyana atlanteia N. Singh, Volynkin, Kirti & Datta , sp. nov.

( Figs 88, 89 , 197, 198 )

Type material. Holotype ( Figs 88 , 197 ): ♂, “NE India, Assam, Pan Bari Reserv [e] Forest , 27°08’N, 94°00’E, 4–7.VII.1997, leg. Sinjaev & Murzin, slide MWM 34504 Volynkin (Coll. MWM / ZSM).

Paratypes: ASSAM: 1 ♂, NE India, Assam, Jatinga , 10.IX.2005 leg. Navneet Singh (Coll. NZCZSI) ; 2 ♂, India, Assam, Jatinga , 11.IX.2005 leg. Navneet Singh (Coll. NZCZSI) ; 1 ♂, India, Assam, Jatinga , 12.IX.2005 leg. Navneet Singh (Coll. NZCZSI) ; 1 ♂, India, Assam, Jatinga , 13.IX.2005 leg. Navneet Singh (Coll. NZCZSI) ; 1 ♂, India, Assam, Jatinga , 14.IX.2005 leg. Navneet Singh (Coll. NZCZSI) ; TAMIL NADU: 2 ♂, India mer., 1000 m, Tamil Nadu, Kalkad, Wildlife Sanctuary, Manjolai , 6–7.IV.1997, 8.15’N, 77.27’E, tea estate / rainforest, Sinjaev & Schintlmeister, slide MWM 34411 (♂) Volynkin (Coll. MWM / ZSM) .

Etymology. In ancient Greek mythology, Atlanteia is one of Hamadryad nymphs, who consorted with Danaus, the king of Libya.

Diagnosis. Forewing length is 11–12.5 mm in males. Cyana atlanteia is a closest relative of C. chrysopeleia and C. intercomma . It differs externally from C. chrysopeleia by its smaller size and broader ante- and postmedial lines. The new species differs from C. intercomma by its slightly smaller size, amber yellow forewing pattern (that is darker, apricot orange in C. intercomma ), and pure white hindwing in male (whereas in male of C. intercomma the hindwing is pale ginger orange). The male genitalia of C. atlanteia differ from those of C. chrysopeleia by their broader uncus, slightly narrower valva with a less developed medial costal crest, and the absence of spinules on the medial diverticulum. Compared to those of C. intercomma , the male genitalia of C. atlanteia have the longer uncus, the aedeagus without subapical dentate ring, the vesica bearing no spinules subbasally and distally, and the shorter dorsal diverticulum with a small subbasal subdiverticulum and only several spinules on its tip (whereas in C. intercomma the dorsal diverticulum is longer, has no subdiverticulum and bears more numerous and robust spinules on its tip, and the vesica has a subbasal bunch of spinules and a long distal cluster of spinules stretching from the medial part of vesica to the base of the vesica ejaculatorius).

The female is unknown.

Distribution. The new species is up to date, known from South and North East India (Tamil Nadu and Assam).

Figures

FIGURES 88–95. Cyana spp.: adults. 88, C. atlanteia, holotype ♂, India, Assam (MWM/ZSM); 89, ditto, paratype ♂, India, Tamil Nadu (MWM/ZSM); 90, C. chrysopeleia, holotype ♂, India, Assam (NZCZSI); 91, ditto, paratype ♂, India, Uttarakhand (MWM/ZSM); 92, ditto, paratype ♀, India, Uttarakhand (MWM/ZSM); 93, C. intercomma, ♂, India, Jammu & Kashmir (NZC- ZSI); 94, ditto, paratype ♂, Thailand (CKC); 95, ditto, paratype ♀, Thailand (CKC).

FIGURES 197–199. Cyana spp.: male genitalia. 197, C. atlanteia, holotype, India, Assam, slide MWM 34504 Volynkin; 198, ditto, paratype, India, Tamil Nadu, sldie MWM 34411 Volynkin; 199, C. chrysopeleia, holotype, India, Assam, gen. prep. 855.