120 Psyche [March-June 
tibiae trispinose. All the species known to the writer in this 
tribe are boldly marked on the frons, lateral fields of the pro- 
notum, carinae, etc., with black, orange, or red, or a combination 
of these colors, usually in vittae. 
The types of all species described as new are deposited in the 
Museum of Comparative Zoology. The writer’s thanks are 
rendered to the Curator, Prof. N. Banks for permission to ex- 
amine the collection and to him and to Prof. F. M. Carpenter 
for assistance in the preparation and publishing of this paper. 
Family TROPIDUCHIDZE 
Subfamily Tambiniinae 
Tribe Paricanini 
Achilorma Metcalf and Bruner 
Metcalf and Bruner, 1930, Psyche 37:400 
Vertex nearly twice as broad as long, anterior margin mod- 
erately convex, evenly rounded, posterior margin rectangularly 
excavate, lateral margins parallel, disc strongly depressed, an- 
terior border of depression strongly convex, slightly extending 
before anterior margin of eyes, strongly carinate medially, frons 
longer than broad (about 1.3 to 1), lateral margins diverging 
and straight to just below level of antennae, then incurved to 
fronto-clypeal suture, a broad longitudinal raised band medially 
with a shallowly impressed trough on each side ; these medially- 
raised and medio-lateral impressed areas continuing on to cly- 
peus; clypeus laterally carinate. Pronotum subequal in length 
at middle to vertex, disc strongly eminent, tricarinate, with a 
small round impression on each side of middle line, lateral ca- 
rinae of disc diverging posteriorly at 45° to medial carina, pos- 
terior margin obtusely angularly excavated in middle, curving 
cephalad near sides; mesonotum broader than long, tricarinate, 
lateral carinae convex, disc about 1.5 times as long as wide (ex- 
cluding scutellar apex). Hind tibiae with three spines. 
Tegmina about 3.2 times as long as broad, costal and com- 
missural margins subparallel, apical margin symmetrically and 
almost semicircularly rounded; Sc+R and M not forked before 
nodal line, Cul forked a short distance before level of apex of 
clavus, M and Cula rather shorter than Sc+R; fourteen apical 
cells, six subapical; apex of clavus distad of middle of commis- 
