FIELD NATURALISTS' CLUB. 2G5 



Thorax short ovoid, the pronofcum hardly visible from 

 above; mesonotum smooth without parapsidal furrows ; scutellum 

 semicircular or lunate ; metathorax short, the hind angles 

 subacute. 



Front wings pubescent, tin' submarginal vein reaching the 

 costa at about two-thirds the length of the wing, the marginal 

 vein short, almost punctiform, only about twice as long as thick, 

 the stigmal vein straight oblique, ending in a minute knob and a 

 little more than twice as long as the marginal vein; basal 

 vein absent. 



Abdomen in female fusiform, about one-third (or a little 

 longer) longer than the head and thorax united, the third 

 segment the longest, the basal segment has a more or less 

 distinct hump at base, but it is not greatly developed or pro- 

 duced into a horn as in Catoleia, Baryconus, and other genera. 



This new genus belongs in the family Proctotrypida?, 

 subfamily V. Scelioninne, Tribe IV Scdionini, as defined in my 

 Monograph of the North American Proctotrypida?, p. 208. 



It is intermediate between the genera C remastobecus Ashm, 

 and JIadronotus Foerst., but with structural characters so 

 distinct as to at once distinguish it from either. 



The table of genera of this tribe, as published by me in my 

 monograph, p. 210, line 16, may be modified so as to include it 

 in the following way : 



Abdomen without a horn at base. 



Abdomen long, fusiform ; mandibles 2-dentate. 



Abdominal segments normal ; antennal club 6-jointed 



Cacus, Riley. 

 Abdominal segments strongly constricted ; antennal club Oval 



5-jointed Cremastcbcsus, Ashm. 



Abdominal segments not strongly constricted, the third segment the 



longest; antennal club 4-jointed, the funicle joints very minute, 



transverse, the pedicel as long as the first three or four joints 



united EmbiJobia Ashm. n g. 



Abdomen broadly oval, the second segment usually a little the 



the longest; antennal club C-jointed Hadronotm, Foerst. 



Embidobia urichi, Ashm. sp. n. 



Male — Female. Length O'S to - 9 mm. Black, subopaque 

 or slightly shining, feebly microscopically punctate, and sparsely 

 clothed with a fine pubescence, more apparent on the head and 

 abdomen ; eyes sparsely hairy ; antenme, except three last 

 joints of club, which are brown, and the legs including coxae 

 brownish-yellow or yellowish. Wings hyaline, pubescent, the 

 venation, except the short marginal vein, yellowish, the latter 

 brown. Abdomen sparsely minutely punctate, the first segment 

 and the second at the suture striate. 



The male differs in having the antenna? entirely honey- 

 yellow, the flagelluni being filiform, the joints, except the last, 



