218 



U. S. NATIONAL MUSEUM BULLETIN 216 



PART 3 



Figures 104-107. — Localities: 104 (left), Trachysphyrus dorsicarinatus; 105 (center, left) 

 T. lochmaius; 106 (center, right), T. strigosus; 107 (right), T. crassifemur. 



Collection dates are mostly in May and June. Those outside of 

 these months are: April 24 at Pinnacles National Monument, San 

 Benito Co., Calif.; April 30 at Dublin, Alameda Co., Calif.; July 11 

 at Fish Camp, Calif.; July 19 at Gold Lake, Sierra Co., Calif.; July 

 21 at Sagehen, near Hobart Mills, Calif.; and August 18 at Red Moun- 

 tain, Wash. 



This species ranges from Washington to southern California, in 

 the Transition zone. 



17. Trachysphyrus crassifemur (Pratt) 



Type: 



Crypius crassifemur Pratt, 1945, Amer. Midi. Nat., vol. 34, p. 582; cf , 9 

 ?, CorvaUis, Oreg. (Washington). 



Front wing 6.2 to 9.4 mm. long; body very stout; lower half of 

 frons with weak, fine transverse wrmkling, its pits moderately deep; 

 first segment of female flagellum about 6.0 as long as wide; temple 

 weakly convex, at its midheight almost flat; notaulus not reaching 

 center of mesoscutum, about 0.30 as long as the mesoscutum (notau- 

 lus reaching well bej^ond center of mesoscutum in all other Nearctic 

 species of the genus) ; mesopleurum subpohshed, its punctures rather 

 small, separated by a httle more than their diameter, centrally the 

 mesopleuriun with some fine horizontal or shghtly oblique wTinkling 

 which is more extensive in the female than in the male ; hind femur of 

 male about 5.4 as long as deep, of female about 3.7 as long as deep. 



Male: Fulvous. Face, orbit, cheek, more or less of lower part of 

 temple, clypeus, mouth parts, front of scape, upper and lower margins 

 of pronotum, subtegular ridge, and under side of front and middle 

 coxae and trochanters, yellow; frons except near eye, back of head, 

 upper side of scape, all of pedicel and flagellum, and sutural markings 

 on thorax, black; hind tibia, basal 0.4 ± of segment 1 of hind tarsuSj 



