70 [January 



Bracon lativentris, n. sp. 



Rufous; head, antennae, legs and ovipositor, black; wings fuscous, with a hy- 

 aline dot at tip of first submarginal cell; abdomen short and very broad, rotun- 

 date, deeply incised, the second segment with a very deep triangular excavation 

 on each side ; ovipositor as long as the body. 



Female. — Rufous, polished ; head black, densely clothed with pale 

 pubescence; each mandible with a pale spot; palpi blackish; antennae 

 as long as the body, piccous, basal joint black. Thorax very smooth 

 and polished; ruesothorax with the dorsal lines well impressed in front; 

 metathorax smooth and shining, clothed with a pale pubescence, a shal- 

 low depression on the middle of the posterior part, and a somewhat 

 deep excavation on each extreme side; tegula? blackish, margined with 

 rufous. Wings uniform dark fuscous; a subhyaline streak along the 

 inner margin of the first submarginal cell, ending in a hyaline spot just 

 below the tip of the cell; nervures and stigma black. Legs, including 

 the coxas, black, tinged with piceous, pubescent, the base of coxae, and 

 tips of trochanters, obscurely rufous ; sometimes the auterior tarsi and 

 the four posterior tibiae and tarsi are somewhat brownish. Abdomen 

 short and very broad, nearly as broad as long, subrotundate, polished ; 

 basal segment gradually dilated, convex on the disk and excavated on 

 each side and at base ; second segment suddenly dilated, with a very 

 deep triangular excavation on each side at base, and on the disk a shal- 

 low excavation with an obtuse longitudinal carina down the middle of 

 it ; third segment with an oblique very deep incisure on each side ; 

 fourth and fifth segments deeply incised at base; remaining segments 

 much narrowed, the apical one flattened on the disk, tinged with pice- 

 ous and fringed with a pale pubescence; venter deeply concave; ovipo- 

 sitor as long as the body, rufous, valves black. Length 5| lines; ex- 

 panse of wings 11 lines. 



Collection. — Ent. Soc. Philad. Two 9 specimens. 



Easily recognized by its large and very broad abdomen. 



Bracon crenulatus, n. sp. 



Dark rufous, shining; head, antennae and legs, black; wings blackish fuscous; 

 abdomen broadly ovate, the segments deeply incised and striated at base, second 

 segment deeply excavated on each side and on the middle; ovipositor moderate. 

 Female. — Dark rufous, polished ; head globose, black, clothed with 

 black pubescence, palpi black; antenna? longer than the body, entirely 

 black. Thorax: dorsal lines of mesothorax scarcely defined; pleura 

 and scutellum smooth and polished ; metathorax convex, smooth and 

 polished, slightly pubescent; tegulae rufous, with a large blackish spot. 

 Wings uniformly blackish-fuscous, slightly subhyaline in and below the 

 first submarginal cell ; nervures and stigma black. Legs, including 



