Larvae Of Five Species Of The Winter Stonefly Genus Capnia (Plecoptera: Capniidae) From California, U. S. A. Stewart, Kenneth W. Drake, Eugene F. Stark, Bill P. Illiesia 2011 7 18 167 181 QQPX Nelson & Baumann 1987 Nelson & Baumann 1987 [251,735,829,853] Insecta Capniidae Capnia Animalia Plecoptera 3 170 Arthropoda species coyote  ( Figs. 1, 2, 4, 8, 26-31)   Distribution. California.   Material examined.  California: San Bernadino Co., Lake Silverwood, Miller Campground, N 34 °16.241 ’ W 17 °17.490 ’,  7-III-2007, E.F. Drake, 4♂, 3♀, 1 reared ♂with exuvium, 15♀larvae, 1♂exuvium, 1 confirmed ♀(by clearing pharate larva), 1 pharate ♀larva; water temperatrure on collection date 11.11 °C, air temperature 20 °C, elevation 1109m, overstory of stream was Jeffrey Pine, Alder, Big Cone Spruce. Willowsalong stream had been cut for fire prevention. Samelocality,  1-II-2011, E.F. Drake, 62♂, 31♀, 1 pair in-copulo.   Characters.Body length ♂6.8-7.0mm, ♀ 7.5-9mm. Light to medium brown dorsally, ventrum lighter, little pattern except underlying muscles or developing adult pigment. Antennal segments 44-46, head capsule width ♂ 0.75-0.81mm, ♀ 0.90-1.02mm. Lacinia triangular, palmate, with longitudinally striate palm surface, broad apical teeth, ventral comb of 10-14 bristles and dorsal comb of 16-18 longer bristles (similar to  C. ventura, Figs. 50, 51). Right mandible with apical teeth, molar pad of dense stiff bristles, and inner band of hairs from base of apical teeth to molar pad (similar to  C. umpqua, Figs. 47, 48). Pronotum with scattered setae over surface, and as a marginal fringe ( Fig. 1). Mesosternal Y-arms with enclosed subtriangular area about 0.3 times the intercostal width. Hind wingpads shallowly notched along inner margin (like  C. inyoand  C. umpqua, Figs. 15, 20); inside forewingpad length ♂ 0.96mm, ♀ 1.26mm. Femora with scattered surface bristles, and tibia with a silky outer fringe ( Fig. 2). Abdominal segments with long surface hairs ( Figs. 26-29). Sexual dimorphism evident. Male with posterior extension of 10 thtergum, triangular in dorsal view with length 0.52-0.57mm; underlying developing wide-based epiproct visible in pharate individuals ( Fig. 4); 10 thtergum in lateral view subtriangular, nearly straight with slightly upturned tip dorsally ( Fig. 8). Female without posterior extension of 10 thtergum ( Figs. 7, 28). Cercal segments 30-32; cercomeres with apical circlet of short and long bristles, longer dorsal and ventral bristle in lateral view, and occasional fine intercalary hair ( Figs. 30-31), not usually visible under 50X light microscopy, and not present in any of the other 4 species studied. 3111701305 2007-03-07 2011-02-01 2007-03-07 San Bernadino Co. 1109 34.270683 Miller Campground 1 -17.2915 Lake Silverwood 3 170 119 51 68 California