76 [January 



tinged with rufo-piceous. Abdomen robust, bright rufous, polished, 

 rather broad at base and gradually dilated to the tip of the secoud seg- 

 ment behind which the abdomen is suddenly deflexed, the venter being 

 full and subconvex, so that when viewed in profile the abdomen is sub- 

 triangular ; first segment deeply and smoothly excavated at base with 

 an acute, longitudinal carina on each side not quite reaching the tip, 

 on the outside of these carinse the surface is longitudinally striated ; 

 second segment with the basal two-thirds very uneven, having several 

 elevations like blisters, the apical third smooth and polished, the middle 

 of the basal half is enclosed by a deeply impressed semicircular groove 

 from which proceeds, on each side, a deep transverse groove, on each 

 side behind the semicircular enclosure, there is an abbreviated longi- 

 tudinal carina, and between these two carinae there are two rather large 

 blisters ; third and fourth segments with two large blisters at base, 

 divided by a faintly defined longitudinal carina which runs down the 

 segments nearly to the tip; the sixth and following segments pubescent; 

 venter large, prominent, polished, somewhat oblique on each side ; ovi- 

 positor half again as long as the abdomen, rufo-piceous, valves black. 

 Length 5 lines; expanse of wings 11 lines. 



Collection. — Dr. J. Grundlach. One specimen. 



Easily distinguished by the large quadrate metathorax and the sculp- 

 ture of the first and second segments of the abdomen. The position of 

 the abdomen in the specimen before me may be unnatural. 



Bracon ventralis, n. sp. 



Black: abdomen rufous; wings dark fuscous; abdomen broadly ovate, deeply 

 incised. 



Female. — Head black, densely clothed with pale pubescence ; palpi 

 blackish, pubescent; antennae as long as the body, black. Thorax 

 black, shining, slightly clothed with pale pubescence, especially on the 

 pleura and metathorax; mesothorax polished, the dorsal lines tolerably 

 well impressed, making the central lobe rather prominent; scutellum 

 shining; metathorax minutely punctured, shining, pubescent on the 

 sides, slightly so on the disk, tinged with rufous about the insertion of 

 the abdomen; tegulse black. "Wings uniform dark fuscous, a streak in 

 the first submarginal cell, and a spot at its tip beneath, subhyaline ; 

 uervures and stigma black. Legs, including the coxas, entirely black. 

 Abdomen short and broadly ovate, rufous, shining; basal segment broad, 

 flattened, gradually dilated towards the tip, convex on the middle, de- 

 pressed on each side with a longitudinal, ill-defined carina in each de- 

 pression : second segment flattened, obliquely depressed on each side at 



