Cyana dohertyi

Volynkin, Anton V., Černý, Karel & Dubatolov, Vladimir V., 2017, A new Cyana Walker, 1854 from Vietnam (Lepidoptera, Erebidae, Arctiinae), Zootaxa 4269 (3), pp. 438-446 : 439

The Cyana dohertyi species-group

The species-group is characterized by having yellow or yellowish-red transverse lines, by the presence of a ventral subbasal field of spine-like cornuti and a large dorsal diverticulum with a field of spine-like cornuti in the vesica, and large bulbous or elliptical appendix bursae with a narrow and strongly sclerotized basal part in the female genitalia. At present the species-group includes ten valid species: C. dohertyi ( Elwes, 1890) , C. ariadne ( Elwes, 1890) , C. abiens Fang, 1992 , C. sikkimensis ( Elwes, 1890) , C. arama ( Moore, 1859) , C. connectilis Fang, 1992 , C. albicollis Fang, 1992 , C. gracilis Fang, 1992 , C. crassa Fang, 1992 and C. propinqua ( Wileman, 1910) .

The forewing pattern of the C. dohertyi species-group is similar to that of the C. phaedra species-group also established here. In the last one we include C. phaedra phaedra ( Leech, 1889) and C. phaedra moupinensis ( Leech, 1899) only. In the male genitalia ( Fig. 15 ) of the species group the vesica with two moderately long and narrow diverticuli with long fields of spinules; in the female genitalia ( Fig. 17 ) the appendix bursae is larger than the corpus bursae, has a strongly sclerotized narrow basal section and a C-like curved weakly sclerotized distal section with a conical broad diverticulum at its junction with the basal section (whereas in the C. dohertyi species-group appendix bursae is smaller or approximately the same size as corpus bursae, not curved and has no diverticuli).

Figures

FIGURES 13 – 15. Cyana spp.: male genitalia. 13, C. dohertyi, India, Manipur, slide BMNH (E) Arct- 6563 m Volynkin (© NHM); 14, C. ariadne, syntype, China, Chang Yang, AV 1876 m Volynkin; 15, C. phaedra, China, Zhejiang prov., slide AV 2029 m Volynkin.

FIGURES 16 – 20. Cyana spp.: male (16) and female (17 – 20) genitalia. 16, C. interrogationis, Central Vietnam, slide AV 1700 m Volynkin; 17, C. phaedra, China, Zhejiang prov., slide AV 2030 f Volynkin; 18, C. aurantifascia, paratype, S Vietnam, Lam Dong prov., slide AV 2301 f Volynkin; 19, C. dohertyi, India, Sikkim, slide BMNH (E) Arct- 6564 f Volynkin (© NHM); 20, C. ariadne, China, Fujian, AV 2058 f Volynkin.