banks: psammocharidae. 235 



9 Blue-black; rather densely clothed with long hair, none below first 

 joint of antennae; clypeus broad, truncate in front; groove above antennae, 

 second and third antenna! joints together fully equal vertex width; vertex, 

 from in front, nearly straight across; hind ocelli rather nearer each other than 

 to the eyes; pronotum angulate behind; metanotum without distinct groove; 

 abdomen hairy on basal segment, at tip and beneath; legs long, spines moder- 

 ately stout, those near tip of hind tibia fully one half the diameter of the joint, 

 inner spur of hind tibia about three fifths of basitarsus; in the hind tarsus the 

 fourth joint is nearly as long as the fifth, and the third is much longer than the 

 fifth. Wings violaceous black, basal vein plainly before the transverse, 

 marginal cell slightly more than its length from wing-tip, second and third 

 submarginals subequal, the third much narrowed above, the second recurrent 

 bowed outward, reaching the third submarginal cell just beyond middle. 



The claws are as usual in the genus, a small erect tooth near middle. 



Length 10 mm. 



In appearance this is much like A. fulgidus, but the fourth joint of 

 hind tarsus is much shorter in that species, the tooth on claw is nearer 

 to the tip of claw, and the basal vein is nearly interstitial with the 

 transverse. 



POMPILOIDES. 



1. The second discoidal cell hardly longer than broad; small species 4 



The second discoidal cell plainly longer than broad 2 



2. Third submarginal cell broad above elsinore. 



Third submarginal cell petiolate or nearly so 3 



3. Female venter hairy; cf inner spur hind tibia three fourths of the basi- 



tarsus; in genitalia the lateral lobes of basal piece reach much beyond 



the cleft median lobe dystera. 



Female venter smooth; cf inner spur hind tibia about two thirds of the 

 basitarsus; in genitalia the lateral lobes of basal piece scarcely reach 

 beyond the emarginate median lobe estellina. 



4. Abdomen wholly black; second submarginal cell subtriangular . .angularis. 

 Abdomen with red spots near base; second submarginal cell trapezoidal. 



hageni. 



POMPILOIDES HAGENI, Sp. nOV. 



Type— M. C. Z. 10,400. 



Mont.: AYeeksville, 2 August, 1882; Wash.: Camp Umatilla, 

 26 June, 1882. 



