234 BULLETIN 45, UNITED STATES NATIONAL Ml'SEl'M. 



pubescent, the inesoiiotum .k little liiieated posteriorly. Head laif;e, 

 wider than the thorax, the (cheeks nuirgined. Antenna* 12-jointed, 

 dark-brown, the scape pale at base; tirst fnniclar joint slender, cylin- 

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

 and third funidar joints short, quadrate; the fourth wider; club C- 

 joiuted. Wings subfuscous, the marginal vein nearly as long as the 

 stiginal. Legs brownish yellow, the coxje black. Abdomen oval, the 

 first segment an<l the second, at base, striate, the following segments 

 all finely closely punctulate. 



Habitat. — Washington, D. C. 



Type in Coll. Ashmead. 



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

 scutellum and the length of the marginal vein readily <li8tingui8li the 

 species. 



BiEONEURA Fr.rster. 



Hym. 8tiul., ii, p. 100 (1856). 



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

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

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



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

 filiform. 



Mandibles short and broad, bidentate. ' 



Thorax ovoid, as in Phannrus, 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 peculiar venation, strongly recalling some 

 of the forms m the Family Mymarid^je, with which it might easily be 

 confused. It also resembles Phamirns, in the Tribe Telenomiui. 



Forster says of it : " Not much larger than Bwus, although umch 

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

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

 tinguished from the foHowicg described genera by the small develop- 

 ment of the submarginal 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." 



Forster's type seems not to have been described, and the following 

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

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

 specits found in Europe, but gives no names. 



