118 Transactions. — Zoology. 



inner orbits yellow. Front and vertex closely punctured and 

 covered with a pale down ; the frontal depression smooth and 

 shining ; the face closely, the clypeus more sparsely, punc- 

 tured. Mandibles broadly dark-rufous in the middle ; the 

 palpi testaceous, black at the base. Mesonotum closely, but 

 not strongly, punctured ; the basal furrows transversely 

 striated. Scutellum and post-scutellum almost impunctate ; 

 the base of the post-scutellum depressed at the sides ; the 

 depression at its sides stoutly striated. Median segment 

 strongly transversely shagreened, most strongly on the apical 

 slope ; its base obliquely depressed in the middle ; the supra- 

 median area elongate ; the lateral nervures not continued to 

 the base, the transverse keel being also obsolete, so that the 

 area is open at the base ; all the other area? are complete. 

 Pleurae shining, closely punctured ; the propleurae stoutly 

 striated at the apex. Wings fulvo-hyaline, the fulvous tinge 

 more distinct at the base ; the basal nervures fulvous, the 

 apical darker ; the stigma fuscous ; the areolet narrowed at 

 the top, being there less in length than the space bounded by 

 the recurrent and the second transverse cubital nervures ; the 

 recurrent nervure is received shortly beyond the middle ; the 

 transverse median nervure is received shortly behind the trans- 

 verse basal. Legs reddish-fulvous ; all the coxae and tro- 

 chanters black. Abdomen black ; the gastracceli and a nar- 

 row line on the apex of the second segment reddish ; the 

 petiole aciculated ; the other segments smooth and shining ;, 

 gastracceli shallow, closely aciculated ; the ovipositor black, 

 rufous in the middle. 



The antennae are slightly compressed and thickened towards- 

 the apex ; the basal joints of the flagellum are twice longer 

 than broad ; the labrum projects ; the mandibles have the 

 upper tooth much longer and sharper than the lower ; the 

 scutellum is very flat ; the sheaths of the ovipositor are longer 

 than the apical two joints united, and project largely ; the last 

 segment is large ; the abdomen very smooth and shining ; the 

 scutellum is twice longer than broad, flat, not keeled at the 

 base. 



Zestocormus, gen. nov. 



Abdomen with eight dorsal segments ; the ventral keel 

 extends to the fifth segment, the second to fifth segments, 

 projecting laterally at the apex ; the sheaths of the ovipositor 

 projecting, in length nearly as long as the apical three seg- 

 ments united. Antennae thickened beyond the middle ; the 

 basal joints of the flagellum much longer than broad. Cly- 

 peus separated from the face ; its sides at the base deeply 

 foveate. The upper tooth of the mandible distinctly larger 

 and longer than the lower. Face roundly projecting in the 



