140 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



that in dichotomy 6 in Ashmead's table the first character is 

 useless since the areolet varies in respect to its presence or ab- 

 sence and length of the petiole. In the specimen of the genotype 

 on which my study is based it is strongly petiolate. The posses- 

 sion or lack of a large petiolar area on the propodeum is a specific 

 character. The genotype and resplendens lack the carinae, 

 while of the two American species described below one lacks them 

 and the other has them well defined. 



Xenoschesis slossonae n. sp. 



Agrees fairly well with the description of limatus (Cress.) but differs 

 in having the propodeum carinate. 



Female. Length 11 mm.; antenna? 10 mm.; ovipositor 0.5 mm. Clypeus 

 a third as 'ong as wide, broadly truncate, transversely ruguloso-punctate; 

 face nearly twice as wide as long, densely, rather coarsely punctate, es- 

 pecially medially, slightly elevated above; malar space nearly half as long 

 as basal width of mandibles; eyes sinuate within and parallel; flagellum40- 

 jointed, apically attenuate; front densely, minutely punctate; temples 

 and vertex polished, impunctate; thorax and propodeum polished, rather 

 .densely, finely punctate, the atter short and gibbous above, with the lateral 

 carina; strong beyond the apical carina but subobsolete before, the apical 

 .carina weak, obsolete outside the lateral carinse, areola punctiform, basal 

 median area weakly defined and minute, petiolar area impunctate, spiracle 

 oval; wings with areolet; nervellus broken slightly above middle; abdomen 

 deeper than wide, subpolished, very minutely shagreened; first tergite 

 about three-fifths as wide at apex as long, with two subcarinate dorsal 

 ridges reaching to about two-th rds of the way to the apex and sub end- 

 ing a long'tudinal depression, spiracles placed slightly be ore middle; 

 second tergite about as long as basal width and subequal to third and 

 fourth, others rapidly dimin'shing in length; hypopygium reaching 

 slightly beyond apex of eighth tergite. 



Black, with clypeus, mandibles, tegulse, wing bases, and apices of ster- 

 nite^ 1-3 white; palpi pale; antenna? brown, paler below, scape and pedicel 

 piceous; legs testaceous except as follows: front and middle femora at 

 apex, all tibiae except apices, front and middle tarsal joints basally white; 

 hind femora and tibia? at apex and hind tarsi throughout black, the basi- 

 tarsus slightly paler at base; hind calcaria? dusky white; wings hyaline, 

 stigma piceous, pale at base. 



Type locality: Mt. Washington, N. H. 



Other locality: Spruce Brook, Newfoundland. 



Type: Cat. No. 19302, U. S. N. M. 



Two females, the type collected by Mrs. Slosson and the para- 

 type by E. M. Walker on July 24, 1914. 



The paratype differs from the type in having the clypeus pale 

 only at apex, antenna black, fiagellum 44-jointed, propodeum 



