Capnia coyote Nelson & Baumann 1987

Stewart, Kenneth W., Drake, Eugene F. & Stark, Bill P., 2011, Larvae Of Five Species Of The Winter Stonefly Genus Capnia (Plecoptera: Capniidae) From California, U. S. A., Illiesia 7 (18), pp. 167-181 : 170

publication ID

https://doi.org/10.5281/zenodo.4760235

DOI

https://doi.org/10.5281/zenodo.4763851

persistent identifier

https://treatment.plazi.org/id/99668795-AE01-800D-FF4A-185E80957544

treatment provided by

Felipe

scientific name

Capnia coyote Nelson & Baumann 1987
status

 

Capnia coyote Nelson & Baumann 1987

( Figs. 1, 2, 4, 8 View Figs , 26-31 View Figs )

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. Willows along stream had been cut for fire prevention. Same locality, 1-II-2011, E.F. Drake, 62♂, 31♀, 1 pair in-copulo GoogleMaps .

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 View Figs ). 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 View Figs ). Pronotum with scattered setae over surface, and as a marginal fringe ( Fig. 1 View Figs ). Mesosternal Y-arms with enclosed subtriangular area about 0.3 times the intercostal width. Hind wingpads shallowly notched along inner margin (like C. inyo and C. umpqua , Figs. 15 View Figs , 20 View Figs ); inside forewingpad length ♂ 0.96mm, ♀ 1.26mm. Femora with scattered surface bristles, and tibia with a silky outer fringe ( Fig. 2 View Figs ). Abdominal segments with long surface hairs ( Figs. 26-29 View Figs ). Sexual dimorphism evident. Male with posterior extension of 10 th tergum, triangular in dorsal view with length 0.52-0.57mm; underlying developing wide-based epiproct visible in pharate individuals ( Fig. 4 View Figs ); 10 th tergum in lateral view subtriangular, nearly straight with slightly upturned tip dorsally ( Fig. 8 View Figs ). Female without posterior extension of 10 th tergum ( Figs. 7 View Figs , 28 View Figs ). 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 View Figs ), not usually visible under 50X light microscopy, and not present in any of the other 4 species studied.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Plecoptera

Family

Capniidae

Genus

Capnia