162 THE AMERICAN NATURALIST. [Vor. XXXV. 
its apical half; joints of approximately equal length, except at 
the tip, where they are somewhat longer but not compressed. 
Clypeus without teeth below, frontal carinze not very promi- 
nent, separated by a distinct facial furrow. Eyes and ocelli 
small and not protruding. The distance between the two 
lateral ocelli is about the same as the distance between the 
lateral ocellus and the eye. Thorax gibbous in front, flattened 
on the dorsal surface, 
which is subopaque; 
pleurz and pectus shin- 
ing. Dorsum with fine 
and rather dense pleure, 
with scattered and lar- 
ger piligerous punc- 
tures. Whole thorax 
covered with long ful- 
vous pile somewhat 
shorter and more ap- 
pressed on the mesono- 
tum and scutellum ; long 
and erect on the pleurz 
and pectus. Anterior 
half of mesonotum trav- 
ersed by a longitudinal 
, smooth line which seems 
3 to lie in a shallow groove 
l at its anterior end. A 
somewhat similar line 
is found on either side, 
extending over the pos- 
terior two-thirds of the 
mesonotum, as far back as the scutellum, and another indis- 
tinct line traverses the posterior third of the scutellum, which 
is flat on its dorsal and convex on its posterior surface. 
Metanotum declivous and slightly concave on its posterior 
surface. Petiole subopaque above, shining below, nearly twice 
as broad as long, flattened transversely across the middle of 
its dorsal surface, but distinctly concave in front of and behind 
Fic. 1. — Eciton schmitti Emery. Male. 
