banks: new fossoriat. hymenoptera. 105 



above and below, and on coxae, femora, tibiae and even one or two 

 on the tarsi; those on tibia nearly as long as width of the joint. Wings 

 blackish, but darker toward tip. Head very broad, clypeus broadly 

 rounded below, impressed line on front, vertex convex, lateral ocelli 

 much closer to each other than to the eyes. Antennae short, basal 

 joint with a row of hairs on the outer edge; third and fourth joints 

 subequal, neither longer than first joint. Pronotum broadly arcuate 

 behind, but not long; metanotum short, no definite groove; abdomen 

 shining, not very slender. Tibiae and tarsi strongly spinose, hind 

 tibia with inner spur about two thirds of the basitarsus, claws with 

 median tooth. Wings with rather short marginal cell, third sub- 

 marginal larger than the second, narrowed above, each recurrent 

 vein is received a little beyond middle of cell. Length, (3.5 mm. 



Reminds one of P. hyadnthinus, but the densely, long-haired body is 

 quite unique. 



PSAMMOCHARES DIFFICILIK, sp. nov. 



Tyjjc.— M. C. Z. 10,019. Va.: Falls Church, 5. 17 September. 

 Nathan Banks. Two specimens. 



9 Black throughout, or with a slight violaceous reflection. Front 

 and vertex with long, black hairs; antennae slender, third joint much 

 longer than the fourth, second, and third together about ecjual to 

 vertex width, basal joint without long hair below; vertex (from front 

 view) nearly straight across; lateral ocelli as close to eyes as to each 

 other; clypeus truncate; pronotum angulate behind, but not strongly 

 so; metanotum with erect, black hair, no definite median groove. 

 Coxae I black-haired; tarsus I with comb of long spines, but that at 

 tip of the .second joint is shorter, and not nearly as long as the third 

 joint; hind tibiae with spines about one half the diameter of the 

 joint, inner spur more than one half the basitarsus. Wings deep 

 black, third cell nearly triangular, marginal cell short, basal veins 

 interstitial. Length, 15 mm. 



Related to P. astur, but larger, the apical comb-spine of second 

 joint much shorter, the third cell and marginal cell also shorter. 



PSAM.MOC'HARES CLEOKA, sp. UOV. 



Type.— M. C. Z. 10,020. Calif.: Los Angeles, 3 May. M. C. 

 Van Duzee. Two specimens. 



