Cyana rudloffi Volynkin & N. Singh, 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 : 16-18

Cyana rudloffi Volynkin & N. Singh , sp. nov.

( Figs 37, 38 , 177 , 250 )

Type material. Holotype ( Figs 37 , 177 ): ♂, India, M. Andaman, Karmatang , 1.5 km E, 12,5072°N, 92,5610°E, 17– 22.08.2001, leg. Jan-Peter Rudloff, coll. Dr. R. Brechlin, slide MWM 35678 Volynkin (Coll. MWM / ZSM).

Paratypes: THE ANDAMAN AND NICOBAR ISLANDS : 1 ♂, India, Andaman Isl., North Andaman , Baratang Isl. , 21–22.III.1998, leg. E. Grigorjev & V. Siniaev, ex coll. Dr. A. Schintlmeister, slide MWM 34512 (♂) Volynkin (Coll. MWM / ZSM) ; 2 ♂, same data as in the holotype, slide MMW 35678 (♂) Volynkin (Coll. MWM / ZSM) ; 2 ♂, 6 ♀, India , M. Andaman, Tugapure— 3 km S, 12,4889°N, 92,4929°E, 14–16.VIII.2001, leg. Jan-Peter Rudloff, coll. Dr. R. Brechlin, slide MMW 35679 (♀) Volynkin (Coll. MWM / ZSM) ; 1 ♂, India, S. Andaman, Port Blair—Mt. Harriet , 11,4321°N, 92,4403°E, 23–24.VIII.2001, leg. Jan-Peter Rudloff, coll. Dr. R. Brechlin (Coll. MWM / ZSM) ; 1 ♂, India, Andaman Isl., Mt. Harriet National Park , Port Blair , 200m, 4–6.III.1998, leg. A. Kamenev & V. Siniaev, ex coll. Dr. A. Schintlmeister, slide MWM 34544 (♂) Volynkin (Coll. MWM / ZSM) .

Etymology. The species is dedicated to Jan-Peter Rudloff, collector of the type series.

Diagnosis. Forewing length is 12.5–13.5 mm in males and 14.5–15 mm in females. Cyana rudloffi is a closest relative of the continental C. obliquilineata . The male of the new species differs externally from that of C. obliquilineata by the red subcostal patch in the postmedial area only (that is blackish in C. obliquilineata ). The female of C. rudloffi differs by its broader ante- and postmedial and subterminal lines. In the male genitalia, C. rudloffi differs from C. obliquilineata by its slightly broader valva with costa being strongly angled medially, more robust distal saccular process being more broadened distally, thinner spinules of the lateral clusters in the vesica, and the shorter and broader distal diverticulum of vesica bearing slightly more robust spinules apically. The female genitalia of C. rudloffi differ clearly from those of C. obliquilineata by the longer and continuous band of more robust spinules in the posterior section of corpus bursae (in C. obliquilineata that is shorter and interrupted into two bands).

Distribution. Endemic of the Andaman Islands ( Arora 1983, as subornata ).

Figures

FIGURES 28–38. Cyana spp.: adults. 28, C. subornata, ♂, Sri Lanka (CKC); 29, ditto, holotype ♀, Sri Lanka (©NHMUK); 30, C. linatula, ♂, India, Tamil Nadu (CKC); 31, ditto, ♀, India, Tamil Nadu (CKC); 32, ditto, lectotype ♀, India, Maharashtra (©NHMUK); 33, C. obliquilineata, holotype ♂, India, Sikkim (©NHMUK); 34, ditto, ♂, India, Meghalaya (MWM/ZSM); 35, ditto, ♂, Thailand (CKC); 36, ditto, ♀, India, Meghalaya (MWM/ZSM); 37, C. rudloffi, holotype ♂, India, M. Andaman Isl. (MWM/ZSM); 38, ditto, paratype ♀, India, M. Andaman Isl. (MWM/ZSM).

FIGURES 176–178. Cyana spp.: male genitalia. 176, C. obliquilineata, India, Meghalaya, slide MWM 34405 Volynkin; 177, C. rudloffi, holotype, India, M. Andaman Isl., slide MWM 35678 Volynkin; 178, C. dudgeoni, India, Meghalaya, slide MWM 34415 Volynkin.

FIGURES 246–251. Cyana spp.: female genitalia. 246, C. pudens, Malaysia, slide MWM 35686 Volynkin; 247, C. subornata, Sri Lanka, slide NHMUK010315746 Volynkin (©NHMUK); 248, C. linatula, India, Tamil Nadu, slide AV4650 Volynkin; 249, C. obliquilineata, India, Meghalaya, slide MWM 35693 Volynkin; 250, C. rudloffi, paratype, India, M. Andaman Isl., slide MWM 35679 Volynkin; 251, C. dudgeoni, India, West Bengal, slide MWM 34416 Volynkin.