Chinoperla Vn-B (Figs. 42, 46) Material examined. Vietnam: Tam Dao, 29 May 1995, C.F. Lee, 1♀ (PMSL). Adult habitus. Biocellate. General color brown to dark brown. Head dark brown except for pale narrow M-line and caluses. Pronotum pale brown with pale, yellowish lateral margins and darker, brown rugosities. Palpi pale, antennae uniformly brown. Fore and mid femora pale in basal third, rest of the femora dark brown; tibiae and tarsi of first and second leg uniformly brown. Hind femora pale in basal two thirds, dark brown over apical third of femora and proximal end of third tibia. Remainder of third tibiae pale, tarsal segments dark brown. Wings uniformly brown. Male. Unknown. Female. Forewing length 11 mm. Subgenital plate unproduced. Sternum 8 bearing an obscure median emargination (Fig. 42). Egg. Collar length ca. 0.03 mm, collar width ca. 0.04 mm. Tear drop shaped with short, narrow collar and petiolate anchor (Fig. 46). Collar slightly wider than long, rim not flanged. Chorionic surface finely punctate throughout; sides of collar and adjacent egg body with a meshwork formed from a few low, smooth ridges. Larva. Unknown. Comments. The egg of this species is quite similar to that of C. sila and may represent a simple variant, but the collar of this specimen is shorter and slightly less ornate than in specimens of that C. sila.

Published as part of Sivec, Ignac & Stark, Bill P., 2010, Five New Species Of Chinoperla Zwick (Plecoptera: Perlidae) From Vietnam And Thailand, pp. 62-74 in Illiesia 6 (8) on page 72, DOI: 10.5281/zenodo.4759667