400 ' [November 



cuireut nervure is angular in the middle, and the areolet is rhomboidal. 

 Legs simple, the two anterior pairs rather short, the posterior pair 

 elongate, robust, their coxis unusually long, more robust in 9 , about 

 equal in length with the femora, which are robust, the trochanters elon- 

 gate; tibiae and tarsi slender; tarsal claws long and simple, curved and 

 acute at tip, pulvuli small. Abdomen elongate, subpetiolated or slightly 

 subsessile, gradually thickened towards the tip; basal segment longest, 

 slightly dilated at tip with a tubercle, more or less distinct, on each side 

 before the middle; 2nd segment about one-fourth shorter than the 1st, 

 the remaining segments each shorter than the 2nd, subequal; beneath, 

 the tip is slit longitudinally in 9 , the ovipositor as long as the abdo- 

 men. 



This genus may be readily distinguished by the very elongate, sub- 

 cylindrical posterior coxae; the elongate, clavate abdomen, and the 

 neuration of the wings, which is very similar to that of Grotea. The 

 9 is larger and much more robust than the % , with the abdomen more 

 strongly clavate. 



Labena grallator. Say. 



Cryptus grallator Say, Bost. Journ. Nat. Hist. i. p. 236. 



Female. — Ferruginous, or fusco-ferruginous ; face rugose, occiput 

 and cheeks, smooth and polished ; orbits, and the margin in front and 

 behind the ocelli, yellowish; the clypeus, mandibles, except tips, and 

 the palpi, tinged with yellowish, a band across the vertex, covering the 

 ocelli, and tips of the mandibles, black; antennae about two-thirds the 

 length of the body, stout, fusco-ferruginous, sometimes blackish, orange- 

 yellow from the 13th or 14th joint to the apical fourth, the basal joint 

 beneath tinged with yellowish. Thorax shining, densely and closely 

 punctured ; sides of the collar, upper margin of the pectus, a line be- 

 neath the fore-wings, a spot beneath the hind-wings, and two subobso- 

 lete longitudinal lines on the mesothorax, yellowish; the sutures of the 

 thorax black, that between the pleura and metathorax margined with 

 yellow ; scutellum minutely and closely punctured, yellow, (sometimes 

 obscure) as well as the postscutellum and the space on each side; the 

 excavation in front of the scutellum blackish ; metathorax pubescent, 

 finely and closely punctured, ferruginous, more or less stained with yel- 

 low behind, the elevated lines sharply defined, forming a large, sub- 



