Sweltsa illiesi Zhiltzova & Levanidova, 1978

Shi, Wenju, Wang, Hongliang & Li, Weihai, 2022, A new species and three new records of Chloroperlidae (Plecoptera) from northeastern China, Zootaxa 5093 (5), pp. 584-592 : 588-589

Sweltsa illiesi Zhiltzova & Levanidova, 1978

( Figs. 3 , 5c )

Sweltsa illiesi Zhiltova & Levanidova, 1978: 18 ; Zhiltzova 1995: 15; Teslenko 2009: 699; Teslenko & Zhiltsova, 2009: 85.

Material examined. 3 males and 5 females ( CAU). China, Jilin Province, Antu County, Changbai Mountain, Changbai Waterfall , N 42.2705, E 128.1083, 1850 m, 2012.VII.25, Zejian Li, Jigang Jiang .

Diagnosis and remarks. The pale head has an inverted V-shaped pigmentation in the ocellar triangle ( Fig. 3a ). The median abdominal stripe is trapezoidal at each tergum and terminates at the posterior margin of tergum 7 ( Fig. 5c ). Tergum 10 with a pair of distinctly sclerotized transverse lateral bands, the medial portion between the bands greatly enlarged in the shield-like darkly sclerotized plate ( Fig. 3b ). Sternum 9 a large, trapezoidal, plate with truncate posterior margin ( Fig. 3c ). Epiproct torch-shaped, basal third is broad, and then abruptly narrowed to apex, apical half parallel-sided, in lateral aspect the apex moderately enlarged and evenly up-curved ( Figs. 3b, 3d ). It is recorded from China for the first time.

Distribution. Russia Far East ( DeWalt et al. 2021); Jilin of China.

Figures

FIGURE 3. Sweltsa illiesi (male). a. Head and pronotum, dorsal view. b. Terminalia, dorsal view. c. Terminalia, ventral view. d. Terminalia, lateral view. T9: Tergum 9, Ep: Epiproct, S9: Sternum 9.

FIGURE 5. Abdominal, dorsal view (male). a. Suwallia kuandian sp. nov. b. Suwallia asiatica. c. Sweltsa illiesi. d. Alaskaperla longidentata.