82 
Psyche 
[Sept.-Dee. 
Pseudomyrma bradleyi sp. nov. 
Worker. 
Length 4.5-5 mm. Color uniformly light brown, or yellow 
brown except the mandibles, front of the head, tarsi and articu- 
lations of the legs, which are yellow. Differs from P. latinoda 
var. coronata by having the sides of the head nearly straight, so 
that the head seen from above is nearly a perfect rectangle; the 
antennae are brownish, not clear yellow as in coronata. The 
prothorax is much narrower than long in the median line; the 
epinotum is almost flat transversely, broadest just behind the 
mesepinotal impression. The prothorax is not marginated. The 
node of the petiole is subglobular, a little narrower in front. 
The postpetiole is shaped as in coronata. In profile the pro- and 
meso-notum together form a convex line, which is interrupted 
by the promesonotal suture. The base of the epinotum is 
straight and forms a blunt angle with the declivity. The petiole 
in profile has a very short peduncle, almost “apedunculate,” 
with convex anterior and posterior faces, the latter more abrupt. 
There is no trace of margin on the node. 
Pilosity practically absent on the vertex, thorax and petiole, 
sparse on the postpetiole, gaster and legs. The pubescence is 
moderately abundant, adpressed, fine and white. The whole 
body with very fine punctation, coarser on the head, and sub- 
opaque. 
This form is close to latinoda but differs from it in several 
major characters, which justifies listing it as a separate species. 
Type locality: Perene, Peru. (Bradley). 
Cotype 22864, Harvard Collection, 6 specimens. 
Pseudomyrma brunnea var. nigrita var. nov. 
Worker. 
Similar to the type in size and structure and with the epinotal 
declivity much longer than the base (as in the type). It differs 
from P. brunnea by the much coarser sculpturing on the head 
and thorax, which renders it opaque (shiny in the type) ; the 
stouter body; the coloration which is black in the new variety, 
except for the mandibles, which are white and contrast strik- 
ingly with the rest of the head (mandibles yellow in the type). 
The head is long and narrow in the type while in the variety it 
is almost as broad as long. 
