234 BULLETIN 45, UNITED STATES NATIONAL IMUSEUM. 



pubescent, the mesouotum a little liueated posteriorly. Head large, 

 wider than the thorax, the cheeks margined. Antenna?- 12-jointed, 

 dark-brown, the scajie pale at base; first funiclar joint slender, cylin- 

 dric, scarcely hinger than the pedicel, the latter pale at tip; second 

 and third funiclar joints sh(n't, quadrate; the- fourth wider; club C- 

 jointed. Wings sul)fnscous, the marginal vein nearly as long as the 

 stigrial. Legs brownish-yellow, the cox;e black. Abdomen oval, the 

 first segment and the second, at base, striate, the following segments 

 all finely closely punctulate. 



Habitat. — Washington, T). C. 



Tyi)e in Coll. Ashniead. 



Described from a single specimen. The sculpture of the liead and 

 scutellum and the length of the marginal vein readily distinguish the 

 species. 



BiBONEURA Fr.rster. 

 Hym. Stud., ii, p. 100 (1S56). 



Head quadrate, anteriorly with a carina between the antenuse, frons 

 depressed; ocelli widely separated, the lateral close to the hind margin 

 of eye. Eyes large, oval, occupying the whole side of the head. 



Antenna? 12-jointed, inserted at the clypeus, in 9 clavate, in S 

 filiform. 



Mandibles short and broad, bidentate. 



Thorax ovoid, as in Phan unis, polished, without furrows, the scutellum 

 short, the metanotum divided by a central carina into two areas. 



Wings very narrow and strongly fringed, with only a stigmal vein 

 that ends in a knob before attaining the costa. 



Abdomen elongate fusiform, strongly depressed, subsessile, the first 

 segment narrowed, but wider than long, the second and third segments 

 subequal and the longest and broadest segments. 



Legs normal. 



A curious little genus, remarkable for the narrow and strongly 

 fringed front wings and the i^eculiar venation, strongly recalling some 

 of the forms in the Family Mj/maridcc, with which it fnight easily be 

 confused. It also resembles Phamirus, in the Tribe Telenomini. 



Forster says of it: "Notnmch larger than Bccun, although much 

 more elongate and narrower, stands the genus Bcvoxeura. In this 

 genus, however, we find the club distinctly jointed. It is readily dis- 

 tinguished from the folio wii:g described genera by the small develop- 

 ment of thesubmarginal vein, which passes from the base into the field 

 of the wing, but does not unite with the costa. In the formation of the 

 wings it forms, therefore, a fine transition to the Platygastroidea." 



Ftirster's type seems not to have been described, and the folloAving 

 species is, therefore, the first species to be described. Kirclmer, in his 

 Cat. Hym. Eup., p. 193, mentions the fact, however, that there are two 

 species found in Europe, but gives no names. 



