Capnia inyo Nelson & Baumann 1987

(Figs. 15-19, 32-37)

Distribution. California.

Material examined. California: Inyo Co., Lone Pine Creek, Lone Pine Campground, N 36 ° 35.860 ’ W 118 ° 11.203 ’, Elev. 1795m, 17-18-II-2010, E. F. Drake. 33♂, 14♀, 5 reared ♂ with exuviae, 3 reared ♀ with exuviae, 1 partially emerged ♂ in larval exuviumaedeagus everted, 7♂ larvae, 22♀ larvae, 3♂ exuviae, 1♀ exuvium; water temperature on collection date 3.3 ° C, snow on ground.

Characters. Body length ♂ 6.6-6.8mm, ♀ 6.9-7.2mm. Light to medium brown dorsally, ventrum lighter, little pattern except underlying muscles or developing adult pigment (Fig. 15). Antennal segments 42-44, head capsule width ♂ 0.72-0.75mm, ♀ 0.84-0.0.90mm. Lacinia and mandibles as described for C. umpqua and C. ventura (Figs. 44-48, 50-53). Pronotum with setae scattered over surface and as a sparse marginal fringe (Fig. 15). Mesosternal Y-arms enclose a subtriangular area about 0.3 times the intercostal width (Fig. 16). Hind wingpads shallowly notched along inner margins (Fig. 15); inside forewingpad length ♂ 0.96-0.99mm, ♀ 1.44-1.50mm. Femora bear scattered surface bristles, and tibia with a silky outer fringe (Fig. 15). Abdominal segments with long surface hairs (Figs. 32, 33). Sexual dimorphism evident. Male 10 th tergum with 0.7-0.8mm long tubular posterior extension in dorsal view (Fig. 15); underlying tubular developing epiproct visible in pharate individuals (Fig. 15); 10 th tergum in lateral view tubular and downcurved (Figs. 17, 34). Female without posterior extension of 10 th tergum (Fig. 18). Cercal segments about 32; cercomeres with apical circlet of short and long bristles, longer dorsal and ventral bristle in lateral view, and no evident intercalary hairs (Fig. 35-37).