154 Psyche [August 



The parasite proves to represent an undescribed genus which 

 may be characterized as follows: 



Conoaxima gen. nov. 



Similar to Axima Walker. Head strongly transverse, 

 deeply emarginate behind, with an erect spine or tooth in front 

 of each lateral ocellus, cheeks and temples separated from head 

 behind by a strong ridge or carina; ocelli in a curved line, the 

 lateral one close to the eye; antennae inserted at the middle of 

 the face, 11-jointed, with one ring-joint; front with a deep 

 groove that receives the two antennal scapes; eyes oval, bare, 

 one-third longer than the malar space; anterior orbits divergent 

 below, the head in front not conspicuously narrowed toward the 

 mouth; temples rounded behind the eyes. Pronotum as long 

 as the mesonotum, with a strong, tooth-like or sharply rounded 

 projection mediall,y in front; scapulae separated behind by half 

 the length of the mesonotum. Scutellum conical, twice as long 

 as the mesonotum, its tip extending well over the propodeum. 

 Abdomen long, compressed, petiole about half the length of the 

 hind femur; fifth segment the longest; sixth and seventh also 

 much lengthened, stigmal and postmarginal veins of equal 

 length, each half as long as the marginal. Head and thorax 

 deeply, coarsely punctate: black. 



Type species: C. aztecicida sp. nov. 



This genus is very similar to Axima, but differs in several 

 important characters. The scutellum is conical in form, not 

 rounded, the abdominal petiole is very much shorter and the 

 marginal vein only about twice as long as the stigmal. The 

 spines on the vertex in the two genera are similar, but there is 

 no ridge between them in Conoaxima. The large conical scutel- 

 lum which projects over the propodeum, with its upper surface 

 in the same plane as the mesonotum give the insect the ap- 

 pearance of an Eucharid. 



In addition to the species taken by Professor Bailey in 

 British Guiana, I have a second one obtained by Professor W. 

 M. Wheeler some years ago at Quirigua, Quatemala, also from a 



