Pieris erutae erutae Poujade, 1888

Ge, Si Xun, Jiang, Zhuo Heng, Wang, Jia Qi, Song, Kui, Zhang, Chao & Hu, Shao Ji, 2023, A revision of the Pieris napi - complex (Lepidoptera: Pieridae) and similar species with distribution in China, Arthropod Systematics & amp; Phylogeny 81, pp. 257-287 : 257

Pieris erutae erutae Poujade, 1888

Pieris erutae Poujade, 1888; Bull. Soc. Ent. Fr. (6) 8: xix TL: “Mou-Pin” [Baoxing, Sichuan] (original description)

Description:

both wings white on the upperside and pale yellowish to yellowish on the underside. Spring form: medium size. Male (Fig. 10F, H ): apical spot blackish with slightly whitish powder, merging as a small dark subtriangular spot on the apex. All discal spots and outer spots absent on the upperside (except for the 1st discal spot and outer spot sometimes rather faintly developed). The 2nd discal spot vaguely developed on the underside. Female (Fig. 10I ): apical spot brownish, partly merging as a subtriangular spot on the apex. The 1st, 2nd and outer spot strongly developed as rectangular on the upperside while faintly present on the underside (except outer spot absent). All veins strongly brownish powdered on both sides especially forewings on the upperside. Summer form: medium to large size. Resembles spring form but larger with rounder wing shape. The 1st discal spot of males (Fig. 10G ) present on both sides and the brown powder along veins is stronger in summer form of females (Fig. 10J, K ) than spring forms.

Distribution.

Central China (Sichuan, Chongqing, Yunnan, Guizhou, Qinghai), Thailand, Laos, Northern Vietnam, Myanmar.

Phenology.

Bivoltine to multivoltine, occurs from April to August (October in Southern distribution areas).

Male genitalia.

(Fig. 5M ) tegumen broad, without distinct convex on the distal margin; basal margin of the uncus slightly narrower than tegumen, with its apical half of steeply digitation.

Female genitalia.

(Fig. 7C ) posterior apophysis slender, extended reach the 8th tergum; inner distal of sterigma lobe shaped extend to center; inner basal of sterigma broad strip shaped, without distinct convex, smoothly connected at the basal margin; signum cordiform shaped, smoothly tapering to the basal.

Figures

Figure 5. Tegumen and uncus of male genitalia in dorsal view. Scale bar represents 1 mm.

Figure 7. Female genitalia of P. napi - complex species. Scale bar represents 0.5 mm.

Figure 10. Habitus of P. napi - complex species occurring in China. Composite pictures on the left show the upper sid, on the right show the underside. A - E Pieris latouchei Mell, 1939. F - K Pieris erutae erutae Poujade, 1888. L - O Pieris erutae kneitzi Eitschberger, 1983 comb. rev. P - R Pieris erutae reissingeri Eitschberger, 1983. S - T P. steinigeri Eitschberger, 1983. Scale bar represents 10 mm. (All type specimens reference Eitschberger, 1983).