New species records of Suwallia Ricker, 1943 (Plecoptera: Chloroperlidae) from China, with description of the nymph of S. decolorata Zhiltzova & Levanidova, 1978 Author Li, Weihai Author Murányi, Dávid Author Shi, Li text Zootaxa 2015 3994 4 556 564 journal article 10.11646/zootaxa.3994.4.4 8c1c6068-f006-4d6a-834b-ef493924c790 1175-5326 242022 FFDE53F2-3AC0-4667-B262-384509133310 Suwallia talalajensis Zhiltzova, 1976 ( Figs. 1 b, 5) Suwallia talalajensis Zhiltzova, 1976 : Levanidova & Zhiltzova 1976 . Presnovodnaia fauna Chukotkogo poluostrova, Akademia Nauk SSSR Trudy Biologo-pocvenogo Instituta, Vladivostok, 36(139): 25; Alexander & Stewart 1999 . Transactions of the American Entomological Society, 125: 220; Teslenko & Zhiltzova 2009 . Key to the Stoneflies (Insecta, Plecoptera ) of Russia and Adjacent Countries. Imagines and Nymphs: 86. Material examined. 1♂ ( HNHM ): CHINA : Inner Mongolia Autonomous Region, Genhe City, Hanma National Nature Reserve, Central Protection Station at bridge of Bonuo River, 1.viii.2014 , leg. Li Shi, Mingrun Tian, Yuxuan Zhu, Xuefeng Gao and Chao Chen. Description of the Chinese specimens. Male ( Figs. 1 b, 5). Head pale with subquadrate pigmentation in ocellar triangle and two brown spots on frons. Pronotum with thin dark lateral margins and darker longitudinal median stripe ( Fig. 5 a); the median abdominal stripe ends at the posterior margin of tergum 8 ( Fig. 1 b). FIGURE 5. Male of Suwallia talalajensis Zhiltzova, 1976 —a: Head and pronotum, dorsal view; b: Terminalia before eversion, dorsal view; c: Tergum 10, dorsal view; d: Terminalia before eversion, lateral view; e: Extruded aedeagus, lateral view. Terminalia ( Fig. 5 ). Tergum 9 with wide brown to dark brown medial pigment ( Fig. 5 b), posterior margin produced into a triangular protrusion in lateral view ( Fig. 5 d). Tergum 10 with a sclerotized “turtle-like” medial area before base of epiproct; large, paired longitudinal lateral sclerites nearly touching epiproct, lightly sclerotized. Hemitergal processes nearly straight and directed posteriorly ( Figs. 5 c–d). Epiproct covered with dense fine hairs ( Fig. 5 c). Aedeagus is membranous and lacking distinct armature, basal portion robust and nearly parallel-sided, apical part upcurved and triangular in outline, the apex beak-like in lateral view ( Fig. 5 e). Diagnosis and remarks. In addition to characteristic head pattern and epiproct, the aedeagus of this species lacks armature. Terga 9 and 10 also has distinct pattern not mentioned by Alexander & Stewart (1999) . This character is helpful in providing identification. Our male specimen still shows slight variation as compared to Russian specimens in some details of pigmentation of tergum 9 and median sclerite of tergum 10 (compared to figs. 524–527 in Teslenko & Zhiltzova 2009 ). No larvae were associated with the adult male and are still unknown.