Taenionema jeanae Baumann & Nelson

(Figs. 1 A-D, 2-7, 49, 91, 104)

Distribution. California.

Material examined. California: Orange Co. Silverado Creek in Silverado Canyon, at gravel low water crossing, 100 m above USFS gate, N 33° 45’ W 117° 35’ (paratype locality; Baumann & Nelson 2007), 6-IV- 2004, K.W. Stewart & E.F. Drake, 2 larvae; 9-II-2005, 1♂, 1♀, E.F. Drake; 10-III-2005 and 25-III-2005, 66♂ 22♀, 32 larvae, E.F. Drake; 4-IV-2005, 27♂, 28♀, 1♂ and 1♀ reared, K.W. Stewart & E.F. Drake (field correlated with no congeners and reared).

Characters. Color, pigmentation (Fig. 1A), maxillae (Figs. 2-7), body, leg (Figs. 1B, 49) and cercal setation, and sexual dimorphism generally typical of genus. Body length 9-11mm. Antennal segments ♂ 62-66, ♀ 56-60. Cercal segments ♂ 36, ♀ 38. Male 9 th sternum (Figs. 1C, 91) ovate, with broadly rounded apex. Female 9 th sternum (Fig. 104) broadly triangulate and narrower than male behind greatest width, with narrowly rounded apex, and anterior portion broadly triangulate with straight sides.