Cyana trilobata Fang, 1992

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 : 53

Cyana trilobata Fang, 1992

( Figs 140–143 , 227 , 282 )

Cyana trilobata Fang, 1992 , Sinozoologia 9: 260, 265, fig. 1 (Type locality: [ China] “Cona, Xizang, 2500 m ”).

Material examined. SIKKIM: 1 ♀ , Sikkim, 7000 ft., Ranjvett. / Collectio H.J. Elwes (Coll. NHMUK); 16 ♂, 12 ♀ , Sikkim, Mt. Kanchenjunga SE, 27°30’N, 88°20’E, 2000 m, 22–31.VII.1995, leg. E. Afonin & V. Sinjaev ex coll. Schintlmeister, slide ZSM Arct. 57/2017 ♂ Volynkin (Coll. MWM / ZSM); 20 ♂, 13 ♀ , same locality and collectors, but 2600m, 9–10.VIII.1995 (Coll. MWM / ZSM); 15 ♂, 16 ♀ , same locality and collectors, but 2225 m, 11–14.VIII.1995, slide ZSM Arct. 59/2017 ♀ Volynkin (Coll. MWM / ZSM); 1 ♂ , same locality and collectors, but 3000m, 7–8.VIII.1995 (Coll. MWM / ZSM); 7 ♂, 6 ♀ , same locality and collectors, but 1900m, 15.VIII.1995 (Coll. MWM / ZSM) .

Diagnosis. Forewing length is 17–19 mm in males and 21.5–22.5 mm in females. Cyana trilobata differs externally from C. candida by the crimson border of patagia, the presence of a crimson dot on the thorax medially, and the longer red strip on the basal part of forewing costa. The male genitalia of C. trilobata differ from those of C. candida by their more robust vinculum, longer ampulla and more robust spinules of the distal cluster. In the female genitalia, the apophyses anteriores of C. trilobata are slightly longer than those of C. candida , the sclerotized area of the posterior section of corpus bursae is longer, and the appendix bursae is broader.

Distribution. North East India (Sikkim: first record for India), Nepal ( Kishida 1995, as candida ), Bhutan (present study), China (Xizang and Yunnan) ( Fang 1992; 2000), North Thailand (Chiang Mai Prov.) ( Černý & Pinratana 2009, as candida ) and North Vietnam (Fan-si-pan Mts.) (present study).

Figures

FIGURES 136–143. Cyana spp.: adults. 136, C. candida, ♂, India, Uttarakhand (MWM/ZSM); 137, ditto, ♂, India, Jammu & Kashmir (MWM/ZSM); 138, ditto, holotype ♀, India, Himachal Pradesh (©NHMUK); 139, ditto, ♀, India, Himachal Pradesh (MWM/ZSM); 140, C. trilobata, ♂, India, Sikkim (MWM/ZSM); 141, ditto, ♀, India, Sikkim (MWM/ZSM); 142, ditto, ♂, Thailand (MWM/ZSM); 143, ditto, ♀, Nepal (MWM/ZSM).

FIGURES 226–229. Cyana spp.: male genitalia. 226, C. candida, India, Uttarakhand, slide MWM 31798 Volynkin; 227, C. trilobata, India, Sikkim, slide ZSM Arct. 57/2017 Volynkin; 228, C. selangorica selangorica, Malaysia, slide MWM 34562 Volynkin; 229, C. selangorica paeninsulana, India, Assam, slide ZSM Arct. 2019-331 Volynkin.

FIGURES 282–287. Cyana spp.: female genitalia. 282, C. trilobata, Nepal, slide ZSM Arct. 58/2017 Volynkin; 283, C. selangorica selangorica, Malaysia, slide NHMUK010315790 Volynkin; 284, C. selangorica paeninsulana, paratype, Thailand, slide AV4667 Volynkin; 285, C. perornata, India, Assam, slide MWM 34444 Volynkin; 286, C. conclusa conclusa, Malaysia, slide MWM 37066 Volynkin; 287, C. conclusa nicobara, paratype, India, Nicobar Isls, slide NHMUK010315747 Volynkin.