260 THOMAS SAY FOUNDATION 



black beyond the middle; first segment at least twice as 

 long as wide, the next two segments about twice as wide 

 as long; the segments beyond the middle four or five 

 times as long as wide ; quite hairy. 



Male. The ninth ventral segment but slightly produced 

 backward, the hind margin evenly rounded; the supra- 

 anal process modified into a very long and slender probe 

 which recurves over the abdomen and reaches at least to 

 the middle of the eighth tergite ; subanal lobes triangular, 

 up-curved. There is no tubercle on any of the tergites. 



Female, unknown. 



Type, male, 11365, Victoria, B. C, April 12, 1907 (Banks 

 Collection, Museum Comparative Zoology, Cambridge, 

 Mass.). 



Capnia elongata Claassen. 



(Plate 48, fig. 7.) 

 1924. Capnia elongata Claassen, Can. Ent., 56:56. 



Length to tip of wings, male, 7 mm. Expanse, male, 

 12.5 mm. 



General color dark brown. Head a little wider than 

 prothorax, brown ; occiput marked with longitudinal dark 

 lines ; hind ocelli almost twice as close to eyes as to each 

 other. Antennae dark brown. 



Prothorax wider than long, dark brown; somewhat 

 widened behind; front angles broadly, hind angles nar- 

 rowly rounded; surface moderately rugose in the middle 

 portion. Legs dark brown. Wings subhyaline; Sc ends 

 before the cord ; R sinuate at origin of Rs. Cerci brown, 

 composed of at least twenty-one segments. 



Male. Seventh abdominal tergite with a raised, black, 

 granulate, rounded transverse knob on the hind margin; 

 eighth and ninth tergites with a slight median depression ; 

 tenth tergite bifid ; supra-anal process recurved, slender, 

 very long, reaching to the knob on the seventh tergite ; 

 subanal lobes upcurved and ending in short spine-like 

 processes; ninth sternite slightly produced and rounded. 



Female, unknown. 



Holotype, male, Jan. 24, 1922, near Caribou, Plumas Co., 

 Calif. (H. S. Barber, in the U. S. National Museum) ; 

 paratypes, four males from the same locality. 



Capnia excavata Claassen. 



(Plate 48, fig. 8.) 

 1924. Capnia excavata Claassen, Can. Ent., 56:47. 



Length to tip of wings, male, 6.5 mm. Expanse, male, 

 10.5 mm. 



