Isca fascia Nguyen & Bae, 2003

Figs 14, 15 (first record from China)

Isca fascia Nguyen & Bae, 2003: 453–466, figs 20–24 (nymph, male). Type: female nymph, from Vietnam.

Material examined.

• 1 male imago 11 nymphs, Ailao Mountain, Yuxi City, Yunnan Province, China, 2200 m a. s. l., 23.970333°N, 101.527147°E, 2022-II-7, Xuhongyi Zheng leg.

Description.

(see Nguyen and Bae 2003).

Diagnosis.

The nymph of I. fascia can be distinguished from other Isca species by the following characters: abdominal terga I – II and VII – IX dark brown, terga III – VI light brown (Fig. 14 A); abdominal sterna I – VI and X light brown, sterna VII – IX dark brown (Fig. 14 B). The male imago of I. fascia can be distinguished by: wings translucent, vein MA forked slightly more than 1 / 2 of distance from base to margin; cilia present on posterior margin of wings (Fig. 15 A); abdominal terga I – II and VII – IX dark brown, terga III – VI pale (Fig. 15 A); forceps pale (Fig. 15 C); penes yellow, large, lateral margin round, fused basally (Fig. 15 C).

Distribution.

China (Yunnan Prov.); northern Vietnam.