Neoperla yingjianga Wang, Li & Li, 2025

Neoperla yingjianga Wang, Li & Li , sp. n.

Type material

Holotype. 1♂, CHINA: Yunnan, Dehong Dai and Jingpo Autonomous Prefecture, Yingjiang County Town , 1203 m, 24.76°N, 97.69°E, 4 May 2017, leg. Li Wen-Liang ( CAUC). GoogleMaps

HISTORY

Description

Adult habitus. (Figure 2) General body colour pale brown. Distance between ocelli as wide as the ocellus (Figure 2(a)). Head slightly wider than pronotum, mostly yellow brown, features a distinct stigma covering ocelli area, anterior margin of the stigma concave; compound eyes black; antennae Pronotum brown, lateral margins pale; wing membrane subhyaline; legs mostly brown, with joint darker (Figure 2(a)). Cerci brown. Abdomen pale brown, with terminal segments darker (Figure 2(b))

Male. (Figure 2) Fore wing length 8.4 mm, hind wing length 7.4 mm. Tergum 7 with a sclerotised, process extending to anterior area of tergum 8 distally, apex with several paramedial sensilla (Figure 2(b)). Tergum 8 with a sensilla basiconica patch medially and a few paramedial sensilla duct; Sg: subgenital plate.

Tergum 9 with two paramedial patches of long hairs on basal half, with two sensilla basiconica posterior margin. Hemitergal processes of tergum 10 straight and reaching median area of tergum 9, sclerotised, and the basal one-third upcurved in lateral aspect. Sternum is unmodified in the male (Figure

Aedeagus (Figure 2(c–e)) pale and membranous. Dorsal surface of aedeagal tube weakly sclerotised a prominent spherical mesoventral projection and a spineless heart-shaped projection subapically in aspect, anterior margin of the lobe divided, and a pair of rabbit-ear-shaped projections apically in aspect, armed with small spines (Figure 2(c–d)). Aedeagal sac plump, with the surface mostly armed spines, and the largest spines occur on the margin of apex (Figure 2(c–e)).

Female. Unknown.

HISTORY

Remarks

The male of N. yingjianga is characterised by a dark brown body. The aedeagal tube has one mesoventral projection, a pair of rabbit-ear-shaped dorsoapical projections and one heart-shaped subapically in dorsal aspect. The aedeagal sac is mostly membranous and smooth, with spines occurring the lobes. The new species is similar to N. yunnana in aedeagal shape, both having one smaller