Taenionema raynorium (Claassen)

(Figs. 15, 24, 39, 55, 63, 75, 84, 97, 110)

Distribution. California.

Material examined. California: El Dorado Co., North Cosumnes River at Capps Crossing, 9.7 km east of Grizzly Flat, 14-IV-1980, R. L. Bottorff, 3♂ larvae, 6♀ larvae (field associated with adults from this site). Siskiyou Co., Shasta River at bridge north of Weed, 2-IV-1983, K.W. Stewart, 2♂, 1♀, 1♂ larva, 2♀ larvae (field associated also with adults collected at this locality listed in Stanger & Baumann 1993) .

Characters. Color, pigmentation (Fig. 15), maxillae,

body, leg (Fig. 55) and cercal setation, and sexual dimorphism (Figs. 75, 84) generally typical of genus. Body length ♂ 9- 9.5 mm, ♀ 10-10.5 mm. Antennal segments approximately 74. Cercal segments approximately 56. Male 9 th sternum (Fig. 97) broadly triangulate behind greatest width, with posterolateral sides convex; anterior portion broadly U-shaped. Female 9 th sternum (Fig. 110) narrowly triangulate behind greatest width, with posterolateral sides slightly rounded and pointed apex.