186 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



fluent with the basal area, though usually separated from it by a transverse 

 carina; areolet triangular; nervulus and basal vein interstitial or nearly so; 

 discal-cubital vein not broken by stump; nervellus broken well below the 

 middle; first abdominal segment petiolate, the spiracles placed slightly 

 beyond the middle; abdomen of the female slightly compressed apically; 

 legs robust; calcaria short; tarsal claws with an erect median tooth, and 

 with small teeth basally. 



Type: Cubocephalus atrocoxalis Ashmead. 



Related to Helcostizus Foerster but separated from it by the 

 well defined areola. Cubocephalus Ratzeburg has sternauli and 

 belongs to the Cryptinse. 



Helcostizidea xanthognatha, n. sp. 



This species resembles atrocoxalis (Ashmead), but may be sepa- 

 rated from it by the posterior legs of the areola being much shorter 

 than the anterior legs. 



Female. Length to the apex of the abdomen, 14 mm. Antennae filiform ; 

 head finely granular; the area immediately above the antennae depressed, 

 the depression extending ventrally from the anterior ocellus; the intra- 

 ocellar area divided by short, longitudinal furrow; posterior ocelli bound 

 posteriorly and laterally by a deep furrow; postocellar line distinctly longer 

 than the ocellocular line which is about twice the diameter of the lateral 

 ocellus; scutum shining, very sparsely punctured, although anteriorly the 

 punctures are closer and become subopaque; scutellum convex, sculptured 

 similarly to the scutum; the suture separating the scutellum and scutum 

 foveolate; lateral posterior margin of the pronotum reticulate; the upper 

 margin of the mesepisternum obliquely striate, the remaining portion punc- 

 tate on a finely granular surface; suture between the meso- and meta-thorax 

 strongly foveolate; sides of the propodeum sculptured like the mesepister- 

 num; dorsal aspect of the propodeum finely granular; basal area almost 

 parallel-sided, although anteriorly the carina? diverge, separated from the 

 areola by a poorly defined transverse carina; areola slightly longer than wide 

 posterior parallel legs'about two-thirds the length of the anterior diverging 

 legs; surface of the areola and the posterior face of the propodeum trans- 

 versely striate; abdomen finely granular except the apex and the first ter- 

 gite which is impunctate; tibia? with minute spines and short hair. Black; 

 palpi, mandibles except apices and tegula?, yellowish white; four anterior 

 legs below coxae, posterior trochanters and the posterior femora rufous, 

 or ruf o-f erruginous ; the intermediate tarsi dusky; wings hyaline, venation 

 brown; costa and stigma dark brown. 



Columbia Falls, Montana. Described from one female record- 

 ed under Bureau of Entomology Number Hopk. U. S. 8530a, ma- 

 terial collected bv Joseph Brunner. 



Type: Cat. No. 16047 U.S.N.M. 



