MONOGRAPH OF THE NORTH AMERICAN PROCTOTRYPIDvE. 443 



stump of a stigmal vein that lias a short backward directed branch; 

 9 apterus. 



Abdomen pointed, ovate, distinctly petiolated, the second seg:ment 

 very large, with 2 sulci at base. 



Legs clavate, pilose, the basal joint of posterior tarsi about one-third 

 the length of the second. 



Westwood characterized the genus from the male sex alone, and the 

 diflerence noticed in the antennae suflticiently distinguishes it from all 

 other genera with non grooved mesonotum and 14-jointed anteniuie. 



Thomson characterized the genus as having 12-jointed antenna^, in 9 , 

 but he confused Loxotropa Forster with Basalys, and all his females are 

 now relegated to that genus. 



The genus is undoubtedly closely allied to Loxotropa and the females 

 are probably always apterous. 



What I take to be the female of Bamlys has 13-jointed antenna? and 

 agrees in all essential characters with the male. Whether I am right 

 or wrong is, however, questionable, and can only be definitely settled 

 when specimens in both sexes have been reared, or the sexes are cap- 

 tured in coitu. 



The species in our fauna known to me may be distinguished by the 

 aid of the following table : 



TABLE OF SPECIES. 



Females 2 



Males. 



Scutellum with an oblong fovea across the base. 

 Autennaj and logs rufous; ■wings fuscous. 

 First flagellar joint oblong-oval, less than half the length of the second, the 

 second very stout, a little narrowed and curved towards the base, 

 the following joints shorter, fully thrice as long as thick, the last 

 acuminate, lA times as long as the penultimate. 



B. FusciPENNis, sp. nov. 



Scape, pedicel, and femora piceous, rest of antennaj and legs pale rufous, or 



brownish-yellow. 



First flagellar joint longer than thick, about half the length of second, the 



second stouter towards apex, narrowed and curved towards base, 



the following joints shorter, not more than 21 times as long as thick, 



the last miuli longer than the penultimate B. picipes, sp. nov. 



Scape polished black, pedicel and flagellum brown. 

 First flagellar joint oblong-oval, less than half the length of the second, 

 which is dilated outwardly at apex, the following joints equal, 2^ 



times as long as thick B. utahensis, sp. nov. 



2. Winged ; antennae and legs brownish-yellow, the former gradually incrassated and 



dusky towards tips ; pointed tip of abdomen rufous. B. analis, sp. nov 



Winged ; antennse and legs piceous, the former very short, filiform ; bases of tibiae 



honey-yellow B. urevicornis, sp. nov. 



Apterous; legs and funicle honey-yellow; scajie and club brown-black, the latter 

 abrupt, 4-joiuted B. californica, sp. nov» 



