Pseudacrobasis tergestella (Ragonot, 1901)

Ren, Yingdang & Li, Houhun, 2016, Review of Pseudacrobasis Roesler, 1975 from China (Lepidoptera, Pyralidae, Phycitinae), ZooKeys 615, pp. 143-152 : 145

Taxon classification Animalia Lepidoptera Pyralidae

Pseudacrobasis tergestella (Ragonot, 1901) Figs 2, 4, 6

Psorosa tergestella Ragonot, 1901: 107-108. TL: Italy (Trieste).

Pseudacrobasis nankingella Roesler, 1975: 100. TL: China (Jiangsu).

Pseudacrobasis tergestella (Ragonot, 1901): Vives, 2014: 401.

Diagnosis.

Adults (Fig. 2) with wingspan 13.5−18.0 mm. Pseudacrobasis tergestella is characterized by the large uncus narrowed from broad base to 3/5, mushroom-like in the distal 2/5; the transtilla distally produced to a stout digitate dorsal process and a curved slender ventral process in the male genitalia (Fig. 4); and by the posterior margin of the eighth tergite deeply concave, U-shaped and with a sclerotized semicircular decoration at middle of anterior 1/3 in the female genitalia (Fig. 6).

Distribution.

China (Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan, Liaoning, Jiangsu, Jiangxi, Jilin, Shaanxi, Shandong, Shanghai, Sichuan, Yunnan, Zhejiang, Taiwan), Korea, Japan, south of Russian Far East, France, Portugal, Italy.

Notes.

Pseudacrobasis tergestella (Ragonot, 1901) is widely distributed in China. Its identification in this study is based on the examination of 88 male and 67 female specimens. Scalercio (2015) pointed out "the currently known [ …], the distribution of Psorosa tergestella is quite unique with occurrences in the far east and in the far west of the Palearctic region, no records are currently available for Central Asia and East Europe, where suitable habitats are present". We believe Psorosa tergestella is likely to distribute the Central Asian and East Europe region with the depth of the investigation.