268 THOMAS SAY FOUNDATION 



Capnia bakeri Banks. 



(Plate 49, fig. 11.) 

 1918. Arsapnia bakeri Banks, Bull. Mus. Comp. Zool., Harvard 62, 

 No. 1:9. 



Length to tip of wings, female, 9.5 mm. Expanse, fe- 

 male, 17 mm. 



General color blackish brown, wings slightly inf uscated. 

 Head dark brown with black rugosities ; wider than the 

 prothorax. A depressed area between the hind ocelli and 

 one each side of the front ocellus ; a black narrow polished 

 mark extends from the hind ocelli towards the base of 

 the antennae, and two large black polished slightly raised 

 marks on the clypeus ; occiput with a number of black 

 longitudinal broken lines; head covered with fine pile. 

 Ocelli form an almost equilateral triangle whose base is 

 a little longer than the sides, hind ocelli closer to the eyes 

 than to each other, but hardly twice as close. Antennae 

 yellowish brown except the two basal segments which are 

 dark brown ; hairy ; middle segments about three times 

 as long as wide. Palpi light brown. 



Prothorax dark brown with black rugosities ; covered 

 with fine pile; a little narrower than head, wider than 

 long; slightly narrowed behind; front margin slightly 

 rounded ; front angles broadly rounded ; sides convex ; 

 hind angles narrowly rounded ; surface quite rugose. 

 Legs yellowish or light brown ; femora a little darker 

 towards the distal ends ; tarsi dark. Wings slightly in- 

 fuscated, an infuscated spot at the cord and somewhat in- 

 f uscated at the tips of the wings ; veins dark brown ; Sc 

 does not reach the cord; R not sinuate at origin of Rs. 



Abdomen blackish brown. Cerci or tails yellowish at 

 base, darker beyond middle. Segment two about as long 

 as wide, the segments beyond the middle about four times 

 as long as wide, hairy. 



Female. The eighth ventral segment only very slightly 

 produced in the middle, uniformly blackish brown and 

 somewhat swollen in the middle. 



Male, unknown. 



Type, female, No. 10053, mountains near Claremont, 

 Calif. (C. F. Baker, in Banks Collection, Museum of Com- 

 parative Zoology, Cambridge, Mass.). » 



The female type is not in very good condition, the pro- 

 thorax being rather badly twisted and the subgenital plate 

 somewhat shriveled. 



