Cyana (Strigivulpecula) turlini, 2019

Volynkin, Anton V., 2019, Two new ‘ Asura - like’ Cyana Walker, 1854 from Africa (Lepidoptera, Erebidae, Arctiinae), Zootaxa 4576 (2), pp. 395-400 : 396

Cyana (Strigivulpecula) turlini sp. nov. ( Figs. 1, 2 , 9, 10 )

urn:lsid:zoobank.org:act:50B5240F-50A7-4493-AB11-31C0BA757735

Type material. Holotype ( Figs. 1 , 9 ): ♂, Rwanda, Nyungwe , 2000 m, K16, B. Turlin [leg.], 15.I. [19]77, slide ZSM Arct. 189/2017 A. Volynkin (Coll. ZSM).

Paratype: 1 ♂, Rwanda, Nyungwe , 2000 m, K6, B. Turlin [leg.], 23.X. [19]76, slide ZSM Arct. 223/2017 A. Volynkin (Coll. ZSM) .

Etymology. The species name is dedicated to its collector, Bernard Turlin.

Diagnosis. Cyana turlini is externally very similar to its closest relative C. naumanni and they are probably sympatric, as both species were found in the same area (Nyungwe Forest). Externally, C. turlini ( Figs. 1, 2 ) can be distinguished from C. naumanni ( Figs. 3–5 ) by its broader forewings. The male genitalia of C. turlini ( Figs. 9, 10 ) differ from that of C. naumanni ( Figs. 11, 12 ) by the slightly broader vesica, the presence of a bunch of spike-like cornuti in the subbasal diverticulum of vesica, and the slightly shorter cornuti on both, medial and distal diverticula.

Description. Adult ( Figs. 1, 2 ). Forewing length 11 mm in males. Body ochreous yellow with brown suffusion. Male antennae ciliate. Discal spots small, brown. Subbasal area ochreous yellow, sometimes with strong brown suffusion. Antemedial area brown. Medial area ochreous yellow. Postmedial area brown with pinkish suffusion outwards and ochreous yelow suffusion along the costa. Subterminal and terminal areas ochreous yellow. Cilia ochreous yellow. Hindwing pale ochreous yellow with weak pinkish suffusion, pattern absent. Male genitalia ( Figs. 9, 10 ). Uncus broadly trigonal its basal part connected to tuba analis; tuba analis broad and membranous, subscaphium as field of weak granulation. Tegumen moderately elongated, narrow. Manica membranous; juxta broad, trapezoidal. Vinculum robust, U-shaped, with short elliptical saccus. Valva broad, medial costal angle well-developed; sacculus broad, its distal process broad, as long as distal section of valva, with short apical thorn. Aedeagus elongated, narrow, almost straight. Vesica with three diverticula: subbasal diverticulum short, with a bunch of spike-like cornuti of different size; medial diverticulum elongated, directed distally-dorsally, with weak granulation distally and bunch of spike-like cornuti of different size apically; distal diverticulum slightly shorter and broader than medial one, evenly granulated and has a bunch of spikelike cornuti of different size apically.

Female unknown.

Distribution. The new species is currently only known from its type locality, Nyungwe Forest in southwestern part of Rwanda.

Figures

FIGURES 1–8. Cyana spp.: adults. 1, C. turlini, holotype ♂, Rwanda (ZSM); 2, C. turlini, paratype ♂, Rwanda (ZSM); 3, C. naumanni, paratype ♂, W Kenya (ZMB); 4, C. naumanni, ♂, Uganda (ZMB); 5, C. naumanni, ♂, SW Rwanda (©NHMUK); 6, C. nemasisha, ♂, S Mozambique (ANHRT); 7, C. nyika, holotype ♂, NE Zambia (MWM/ZSM); 8, C. rejecta, ♂, Malawi (©NHMUK).

FIGURES 9–12. Cyana spp.: male genitalia. 9, C. turlini, holotype, Rwanda, slide ZSM Arct. 189/2017 Volynkin; 10, C. turlini, paratype, Rwanda, slide ZSM Arct. 223/2017 Volynkin; 11, C. naumanni, paratype, W Kenya, slide AV2899♂ Volynkin; 12, C. naumanni, SW Rwanda, slide NHMUK010315262 Volynkin (©NHMUK).