508 U. S. NATIONAL MUSEUM BULLETIN 2 1 6 part 3 



Type: 9, "resting on blossom," Sabino Canyon, Ariz., Nov. 24, 

 1917, W. D. Edmonston (Washington, USNM 63839). 



Paratype: 9, Tucson, Ariz., Sept. 1, 1940, Bryant (San Francisco). 



5. Cryptohelcostizus chrysobothridis Cushman 



Cryptohelcoslizus chrysobothridis Cushman, 1940, Proc. U.S. Nat. Mus., vol. 88, 

 p. 358; &, 9. Type: ?, Stillwater, Okla. (Washington). 



Front wing of male 6.4 to 8.3 rmn. long, of female 7.2 to 8.0 mm. 

 long; temple moderately convex, its hind 0.3 ± with moderately close 

 small punctures, the rest almost impunctate; punctures on meso- 

 pleurum separated by about 0.25 their diameter; hairs on front face 

 of hind femur not very sparse, their sockets separated by about 0.7 

 the length of the hairs in male, by about 1.0 the length of the hairs 

 in female; areolet rather small, about 0.5 as high as radial cell, about 

 1.0 as long as high; second abscissa of discocubital about 1.35 as long 

 as third abscissa; punctures on second tergite separated by about 0.8 

 their diameter; ovipositor sheath about 0.45 as long as front wing. 



Black. Very narrow frontal, facial, and hind orbits, central part 

 of clypeus, usually spot near base of mandible, usually stripe on upper 

 margin of pronotum, usually base of tegula, and third and fourth 

 segments of male middle and hind tarsi, white; labrum brown; female 

 flagellum with an incomplete white band that covers about two seg- 

 ments; third and fourth segments of hind tarsus of female, and some- 

 times of middle tarsus of female, pale brown or whitish; front and 

 middle legs beyond trochanters and hind femur blackish brown; 

 wings faintly infuscate; abdomen ferruginous, the basal 0.4 ± of its 

 first segment infuscate. 



Specimens: 4cr, 49 (paratypes), Stillwater, Okla., Mar. 16, 29, 

 and 30, 1936, and Apr. 4, 6, and 7, 1936, Myron Maxwell (Washington 

 and Townes). d^, Stillwater, Okla., Aug. 2, 1937, C. W. Eddy (St. 

 Paul). 



6. Cryptohelcostizus nigricans, new species 



Front wing of male 5.8 to 8.0 mm. long, of female 7.7 to 8.0 mm. 

 long; temple moderately convex, its hind 0.3 ± with moderately 

 sparse, small punctures, the rest almost impunctate; punctures on 

 mesopleurum separated by about 0.25 their diameter; hairs on front 

 face of hind femur moderately sparse in male, very sparse in female, 

 their sockets separated by about 1.5 the length of the hairs in male, 

 by about 2.5 the length of the hairs in female; areolet rather small, 

 about 0.52 as high as radial cell, about 0.9 as long as high; second 

 abscissa of discocubital about 1.07 as long as third abscissa; punctures 

 on second tergite separated by about 1.3 their diameter; ovipositor 

 sheath about 0.45 as long as front wing. 



