no 
Psyche 
[j une-August 
41. Bases and hind angles of abdominal segments pruinose, 
sides of first segment pruinose; anterior crossvein beyond 
middle of discal cell; mystax and hypopleural hairs main- 
ly black; thorax largely gray, marks diffuse, pleura bear 
of pile, scutellar margin with strong bristles. 
(Cal.) nigricolor Coq. 
No fasciae at base of segments; scutellum more or less pilose; 
thorax darker 42 . 
42. Hypopleural pile wholly or in large part white 43 . 
Hypopleural pile wholly black 47 . 
43. Pleurae with polished spot beneath wings; tibial bristles 
white; first abdominal segment with entire fascia. (N. 
S., Mass., N. Y. Md. Va.) lutatius Walk. 
Pleurae wholly pollinose and with some fine pile; tibial 
bristles mainly or entirely black; fascia of first segment of 
abdomen interrupted 44. 
44. Scutellar pile pale yellow, wings hyaline; facial pile mixed 
white and black. (Or.) (Proc. Cal. Acad. Sc. 1921, 255) 
thompsoni Cole 
Scutellar pile black ' 45 . 
45. Scutellar pile abundant; wings dark, especially in male; 
facial pile white in male, black in female. (Or.) (Proc. Cal. 
Acad. Sc. 1919, 233) infuscatus Cole. 
Scutellar pile sparse and marginal; facial pile black. . . 46 . 
46. Tarsal claws yellowish with black tip ; wings hyaline ; median 
stripes as distinct as the blackish lateral spot. (Cal., 
Or., Wash., Id.) nugator O. S. 
Tarsal claws reddish at base, otherwise black; wings brown- 
ish hyaline ; median geminate stripe of mesonotum abbrevi- 
ated posteriorly and less distinct than the rich dark 
brown lateral spot. (Cal. Or.) .... rejectus 0. S. 
47. Front and face broad, cinereous; notal marks often feeble. 
(Cal., Or., Wash.) sudator 0. S. 
Front and face relatively narrow, brownish; notal stripes 
coalescing, dark brown. (Cal., Ariz., N. M., Id.) 
positivus O.S. 
