Amphinemura Vn B

Stark, Bill P. & Sivec, Ignac, 2010, Eight New Species Of Amphinemura (Plecoptera: Nemouridae) From Vietnam, Illiesia 6 (5), pp. 41-51 : 50

Amphinemura Vn B

( Fig. 29 )

Material examined. Vietnam: Lao Cai, ca. 12 km along road from Sapa to Lai Chau, 1950 m, 22° 20’ 58” N, 103° 46’ 15” E, 1-12 May 1999, ROM 992012, B. Hubley, 2♀ ( ROM) .

Adult habitus. General color brown. Head brown with dark areas at base of antennae. Pronotum pale brown over most of disk, paler along median suture. Wings pale brown, veins dark brown. Femora brown, tibiae dark proximally at knee and pale elsewhere.

Female. Forewing length 7.5 mm. Subgenital plate lobes meet near midline; posterior margins form a broadly U-shaped notch; inner basal margins poorly sclerotized ( Fig. 29 ). Sternum 9 entirely sclerotized; anteromedian margin slightly projecting. Median area of sternum 7 projects over base of subgenital plate.

Remarks. No males with dark spots near the antennal bases were found among our samples. The pale area on the inner basal margin of the subgenital plate lobe appears to be distinctive, at least for the Vietnamese species we have seen.

Figures

Figs. 24-29. Amphinemura viet (24-27) and Amphinemura spp. (28-29) 24. Male terminalia, dorsal. 25. Paraproct, caudal aspect 26. Male terminalia, lateral. 27. Female terminalia, ventral. 28. Amphinemura Vn-A, female terminalia, ventral. 29. Amphinemura Vn-B, female terminalia, ventral.