74 [January 



first segment rufous, the disk elevated and the lateral margins acutely 

 carinated ; second and two following segments densely and longitudi- 

 nally striated, the stride not quite reaching the tips of the third and 

 fourth segments ; second segment obliquely and rather deeply impressed 

 on each side, with a triangular polished space on each side at base be- 

 tween the middle and lateral margin, on the basal middle between these 

 spaces an angular carina pointed posteriorly and continued down the 

 centre of the segment in a single carina ; third segment with an ill-de- 

 fined, impressed, arcuated line extending all the way across the segment 

 near its base; fourth segment without a transverse impressed line; fifth 

 and following segments smooth and polished; venter somewhat concave, 

 yellowish; ovipositor shorter than the abdomen, black. Length 3£ 

 lines ; expanse of wings 7 lines. 



Collection. — Dr. J. Gundlach. Two $ specimens. 



Readily distinguished by the densely striated abdomen. 



Bracon armatus. n. sp. 



Rufous, polished; head, antennae and legs, black; wings fuscous; metathorax 

 deeply punctured; posterior coxse toothed above; abdomen ovate, disk of second 

 segment with an enclosed ovate space, the segments not incised; ovipositor 

 longer than the abdomen. 



Female. — Rufous, polished, slightly pubescent; head globose, black, 

 clothed with long, pale pubescence; face slightly prominent; palpi 

 black; antennae two-thirds the length of the body, entirely black. 

 Thorax : mesothorax with the dorsal lines deeply impressed, making the 

 middle lobe very prominent; sutures of the pectus and pleura crenu- 

 lated,on the latter, beneath the wings, an obliqe deeply impressed line; 

 metathorax covered above with large deep punctures, with a well de- 

 fined longitudinal carina on the disk, the posterior angles produced into 

 an obtuse tubercle, extreme sides somewhat rugose; tegulae black. 

 Wings uniformly dark fuscous; nervures and stigma black. Legs, in- 

 cluding the coxa;, black, pubescent; the two anterior pairs tinged with 

 piceous ; the tarsi yellowish ; posterior coxce with a stout, acute tooth 

 above. Abdomen ovate, convex, polished; first segment rather broad, 

 flattened, with a longitudinal carina on each side, not reaching the tip; 

 second segment with an ovate, deeply impressed line on the disk at base, 

 enclosing a rather large space, and from each side behind this space 

 the impressed lines runs somewhat obliquely to the lateral margin, re- 

 mainder of the segment and all the other segments smooth and polished ; 

 venter slightly depressed; ovipositor one-fourth longer than the abdo- 

 men, valves black. Length 3f lines; expanse of wings 7 lines. 

 Collection. — Dr. J. Gundlach. One specimen. 



