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; e}ms 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 medially in front; scapula? 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 Pailev in 
British Guiana, I have a second one obtained by Professor W. 
M. Wheeler some years ago at Quirigua, Quatemala, also from a 
