290 [April 



in the preceding species, except that the spaces on each side of the 

 seutellums are striated, and the central area of the metathorax more 

 suddenly and broadly dilated posteriorly. Wings fusco-hyaline, with a 

 strong violaceous reflection ; nervures and stigma black. Legs very 

 robust, rufo-ferruginous, the tibia; and tarsi covered with a very short 

 yellowish-sericeous pile; cux;e and trochanters piceous. Abdomen ro- 

 bust, broadly subfusiform, subpetiolated, smooth and polished, rufo- 

 ferruginous; first segment piceous at base, twice broader at tip than at 

 base, with a small tubercle on each side about the middle; apex slightly 

 subcompressed and rather paler in color thau the rest of the abdomen; 

 ovipositor as long as the body, bright ferruginous, valves piceous. thick- 

 ened at tips and whitish within. Length 4] lines; expanse of wings 

 8 lines. 



Two specimens. 



Subfam. BRACON [DES. 



TENTHREDOIDES. qov. gen. 



Body short and stout, lliinl transverse, not broader than the tho- 

 rax ; vertex subconvex ; occiput concave; cheeks prominent; front 

 excavated behind the antennae; ocelli approximately arranged in a tri- 

 angle on the vertex ; eves small, oval ; clypeus very transverse, sub- 

 truncate in front; mandibles moderate, fitting close against the clypeud 

 when shut; palpi rather slender, filiform. Antennae more than half 

 the length of the body in $ . as long as the body in % , thickened, 

 slender at tips. Thorax short, robust, somewhat gibbous; mesothorax 

 subconvex, trilobate, the dorsal lines very deep and converging on the 

 disk where they become confluent; sides of prothorax and of pleura 

 excavated; scutelluin subtriangular, with a deep transverse, crenulated 

 excavation in front, the spaces on each side rather deeply excavated ; 

 metathorax short, transverse, abrupt behind. Wings ample, broadly, 

 rounded at tips ; nervures robust, those beyond the middle subobsolete, 

 stigma large ; marginal cell elongate, broad at base, rather suddenly 

 constricted at the tip of the second submarginal cell, and thence nar- 

 rowed to the tip which is somewhat incurved and reaches the extreme 

 apex of the wing, this uervure is subobsolete; first submarginal cell 

 about as broad as long, of an irregular subtriangular form ; second sub- 

 marginal cell elongate, being nearly three times longer than broad, 

 subobsoletely defined towards the tip, the apical uervure oblique, very 

 indistinct; third submarginal cell indistinctly defined ; discoidal cell 

 about half the size of the first submarginal, elongate and narrowed at 

 tip ; praediscoidal cell closed, as large as the discoidal, the side nervures 



