Neoperla microtumida Wu & Claassen, 1934

Li, Weihai, Wang, Ying & Wang, Rongfeng, 2017, Taxonomic notes on Neoperla (Plecoptera: Perlidae) from Sichuan Province of China with the description of two new species, Zootaxa 4221 (2), pp. 191-204 : 199

Neoperla microtumida Wu & Claassen, 1934

( Fig. 8 c)

Neoperla microtumida Wu & Claassen, 1934: 123 . Type locality: China: Sichuan (between Kiating and Yachow).

Material examined. Holotype ( USNM), China: Szechuan , between Kiating and Yachow, 1300–1500 ft, July 2–4 1930, D.C. Graham (No. 119).

Diagnosis and remarks. This species was redescribed based on a similar male from Thailand ( Stark 1987). The holotype is badly faded. The aedeagus ( Fig. 8 c) is broken at base and impossible to successfully evert. However, our examination confirms the original illustration of the aedeagus (fig. 19, Wu and Claassen 1934). The aedeagal sac is ca. half as long as tube and has a row of ca. 4–5 distinct spines on each lateral side (our illustration, fig. 8c, is taken from dorsal or ventral view, so the armatures are paired). The Thailand specimen clearly has a longer aedeagal sac and lacks the spinous lateral rows present in the aedeagal sac of the holotype. Therefore, this specimen apparently belongs to another species (fig. 3, Stark 1987).

Figures

FIGURE 8. Neoperla chui Wu & Claassen, 1934, holotype, male (a – b). a. Head, dorsal view. b. Terminalia, dorsal view. c. Male aedeagus of Neoperla microtumida Wu & Claassen, 1934, holotype, before eversion, dorsal / ventral view (hard to judge due to damage of aedeagal base).