178 
Psyche 
[December 
ommatidia. Mandibles long and narrow, convex and deflected, 
their external border straight in the middle, the apical border 
with four teeth (counting the terminal), the most basal small, 
acute and erect, near the middle of the border, the next some- 
what larger and blunter and the preapical small and close to the 
terminal tooth, Clypeus very short, vertical, and transverse, 
above with a short, shelf -like, projecting, rectangular lobe im- 
mediately under the frontal carinse. The latter with prominent, 
closely approximated lobes, their posterior continuations short 
and subparallel. Frontal groove deep and broad, extending 
back somewhat beyond the middle of the head. Antennal 
scapes reaching to within about twice the diameter of their tips 
from the posterior corners of the head; funiculi long, thickened 
distally, first joint about one and one-half times as long as broad, 
not as long as the three following joints together; these and the 
remaining joints, except the last, distinctly broader than long, 
the four terminal joints forming a distinct club. Thorax nar- 
rower than the head, with rather straight dorsal outline in profile, 
interrupted at the pronounced promesonotal and mesoepinotal 
sutures; pronotum broader than long, somewhat rounded above 
and on the sides; mesonotum transversely elliptical, nearly 
twice as broad as long; epinotum subcuboidal, the base straight 
and distinctly longer than the abrupt declivity with which it 
forms a rounded rectangle, the declivity flat, not marginate on 
the sides or above. Petiole subcuboidal, higher and somewhat 
broader than long, rounded above; in dorsal view trapezoidal, 
narrower in front than behind, with straight sides and very 
feebly concave anterior and posterior borders, its ventral surface 
anteriorly with a small, blunt, lamellate tooth. Postpetiole 
broader than long, nearly half again as broad as the petiole, 
truncated in front and marked off by a strong constriction from 
the broader and more rounded first gastric segment, which is 
about one and one-third times as broad as long. Remaining 
segments very small. Sting well-developed. Legs long and 
rather stout; middle and hind tibiae each with a well developed 
spur, the one on the hind tibiae larger. 
Very smooth and shining; mandibles with a few scattered 
punctures; clypeus transversely rugulose; cheeks finely punc- 
