Sesapa (Sesapa) inscripta ( Walker, 1854 )

Volynkin, A. V., 2017, On The Taxonomy Of The Genera Sesapa And Nipponasura (Lepidoptera, Erebidae, Arctiinae), Vestnik Zoologii 51 (5), pp. 369-374 : 370

Sesapa (Sesapa) inscripta ( Walker, 1854) ( figs 1, 1–3; 2, 1; 3, 1 )

Sesapa inscripta Walker, 1854: 547 (type locality: “ North China ”).

= Sesapa erubescens Butler, 1877: 345 (type locality: “ North China ”).

T y p e m a t e r i a l e x a m i n e d. Holotype { Sesapa erubescens : without abdomen, handwritten label “ Sesapa erubescens Butler Type” / handwritten label “ China, Shanghai (Fortune) 54–8” / round printed label with a green circle “Type” / printed label “1. Sesapa inscripta” (Coll. NHM) .

O t h e r m a t e r i a l e x a m i n e d. China: Hoeng-Shan (900 m), Provinz Hunan, 18.08.1933, 4} (Höne) ( ZFMK) ; same locality and collector, 3.08.1933, 4} (Höne) ( MWM / ZSM) .

Diagnosis. Externally, the species differs from its closest relative, S. sanguinea by presence of crosslines on forewings and darker hindwings of both sexes. In the male genitalia, S. inscripta differs from S. sanguinea by the narrower uncus, the slightly smaller medial costal process, the shorter apical membranous lobe of valva, the shorter, C-like curved distal saccular process, the larger aedeagus (in comparison with the genital capsule), and presence of only two clusters of spines in the vesica (whereas in S. sanguinea there is one more small bunch-like cluster). In the female genitalia, S. inscripta differs from S. sanguinea by the shorter apophyses anteriores, the narrower antevaginal plate, the narrower ductus bursae, the narrower appendix bursae, and the weaker spines in the posterior section of corpus bursae.

D i s t r i b u t i o n. China (Shanghai, Jiangxi, Hunan, Fujian) ( Daniel, 1951; Fang, 2000).

Figures

Fig. 1. Sesapa spp., adults, dorsal view: 1 — S. inscripta, {, N China (©NHM); 2 — S. inscripta, holotype {of S. erubescens, China, Shanghai (©NHM); 3 — S. inscripta,}, China, Hunan prov. (ZFMK); 4 — S. sanguinea, holotype {, China (©NHM); 5 — S. sanguinea, {, China, Shanghai (ZFMK); 6 — S. sanguinea,}, China, Shanghai (ZFMK); 7 — S. inouei, paratype {, Japan, Ishigaki Isl. (©NHM); 8 — S. inouei,}, Japan, Iriomote Isl. (©NHM).

Fig. 2. Sesapa male genitalia, ventral view: 1 — S. inscripta (holotype of S. erubescens), China, Shanghai, slide BMNH(E) Arct-4660 m Holloway (©NHM); 2 — S. sanguinea, China, Shanghai, slide AV1918m Volynkin; 3 — S. inouei, Japan, Iriomote Isl., slide BMNH(E) Arct-6559 m Volynkin (©NHM).

Fig. 3. Sesapa spp., female genitalia, ventral view: 1 — S. inscripta, China, Hunan Prov., slide MWM 31462 Volynkin; 2 — S. sanguinea, China, Shanghai, slide AB1926f Volynkin; 3 — S. inouei, Japan, Ryukyu Isl., slide Inoue 6802 (©NHM).