Taenionema jewetti Stanger & Baumann

(Figs. 18, 27, 35, 41, 50, 59, 71, 92, 105)

Distribution. Pacific Northwest; Oregon and

Washington.

Material examined. Oregon: Wasco Co., Rowena Dell Creek, Hwy. 30, Mile 6 west of Rowena on Scenic Drive Road, 1-IV-1983, K.W. Stewart, 4♂ larvae, 10♀ larvae, 13♂ (4 reared), 20♀ (5 reared), 24♂ exuvia, 57♀ exuvia. (field correlated and reared) .

Characters. Color, pigmentation (Fig. 10), maxillae (Fig. 27), body, leg (Fig. 50) and cercal setation, and sexual dimorphism (Figs. 59, 71) generally typical of genus. Body length ♂ 9 mm, ♀ 10-11 mm. Antennal segments ♂ 58-60. Cercal segments ♂ 44-46. Male 9 th sternum triangulate behind greatest width, with nearly straight posterolateral sides and pointed apex; anterior portion broadly U-shaped with nearly straight sides. Female 9 th sternum (Fig. 105) similar in shape to male.