11 [January 



ment also deeply excavated on each side, but not so largely as the second 

 segment, the extreme basal margin is indistinctly crenulated ; the two 

 following segments deeply incised at base; remaining segments abruptly 

 narrowed, the apical segment depressed ; venter concave ; ovipositor 

 longer than the abdomen, blackish. Length 2\ lines; expanse of wings 

 6 lines. 



Collection. — -Ent. Soc. Philad. Two specimens examined. 



Bracon plicatus, n. sp. 



Sanguineous: head, antennae, wings and legs, black: abdomen robust, deeplv 

 incised, second segment excavated on each side and carinated down the middle, 

 basal margin of third segment striated; ovipositor short. 



Female. — Head globose, entirely black, pubescent; palpi blackish; 

 antennae longer than the body, black. Thorax sanguineous, smooth 

 and polished, narrowed in front; dorsal lines of the mesothorax faintly 

 impressed; pleura with an obliquely impressed line beneath the wings; 

 metathorax smooth, convex, polished, pubescent ; tegulaa blackish, 

 tipped with rufous. Wings black, with a faint subhyaline streak in 

 the first submarginal cell, and a hyaline spot beneath its tip; nervures 

 and stigma black. Legs, including the coxae, black ; the posterior 

 coxae at base, and their trochanters at tip, rufous. Abdomen robust, 

 polished, sanguineous, slightly pubescent; first segment broad at tip. 

 the lateral angle produced into an acute tooth, disk of the segment con- 

 vex, excavated on each side; second segment deeply excavated on each 

 side at base, and the excavation extending somewhat obliquely inwardly 

 to the basal middle which has a smooth elevated space, behind which 

 there is a shallow rough excavation with an acute carina down its mid- 

 dle, apical margin of the segment obliquely cut off on each side, behind 

 which the basal angles of the third segment are prominent or tubercu- 

 lated; third segment deeply incised at base, the incisure longitudinally 

 striated, and passing behind the prominent basal angles to the lateral 

 margin, posterior portion of the segment as well as ot the two following 

 segments forming a very prominent transverse fold; fourth and fifth 

 segments with their basal half flattened, the incised line at base and 

 before the fold finely crenulated or indistinctly striated ; remaining 

 segments suddenly narrowed; venter depressed on each side and rather 

 acutely produced in the middle, the apical segments suddenly acute at 

 tip and gaping; ovipositor short, valves black. Length 4 lines; ex- 

 panse of wings 8J lines. 



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



