Suwallia asiatica 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 : 585-588

Suwallia asiatica Zhiltzova & Levanidova, 1978

( Figs. 2 , 5b )

Suwallia asiatica Zhiltova & Levanidova, 1978: 14 ; Zhiltzova 1995: 14; Teslenko 2009: 699; Teslenko & Zhiltsova, 2009: 87.

Material examined. 1 male and 7 females ( CAU). China, Liaoning Province, Dandong City, Kuandian Manchu Autonomous County, Quanshan Forest Farm , N 41.0684, E 124.9837, 2009.VII.5, Junchao Wang .

Diagnosis and Remarks. Head pale without markings ( Fig. 2a ). Tergum 10 with a V-shaped sclerite and hemitergal processes exceptionally long, finger-shaped, and fully scleritized in male ( Fig. 2b ). The median abdominal stripe on each tergum ending at posterior margin of tergum 7 and a small vestige at anterior margin of tergum 8 ( Fig. 5b ). Aedeagus membranous and simple, apical half curved dorsally, subquadate in ventral aspect with a pair of mesolateral lobes and a small indistinct central quadrate sclerite ( Figs. 2c–2e ). Female subgenital plate has a pair of short finger-shaped posterolateral lobes, the incision arch-like between the lobes ( Fig. 2f ).

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

Figures

FIGURE 2. Suwallia asiatica (a–e, male; f, female). a. Head and pronotum, dorsal view. b. Terminalia, dorsal view. c. Extruded aedeagus, dorsal view. d. Extruded aedeagus, ventral view. e. Extruded aedeagus, lateral view. f. Female subgenital plate, ventral view. T9: Tergum 9, HP: Hemitergal processes, Sgp: Subgenital plate.

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