104 
Psyche 
[June- Sept. 
across the occipital lobes; anterior portion of the head as 
viewed from the front slightly but perceptibly converging; 
clypeus with sides converging gently on the basal %, the 
anterior border very broadly rounded, somewhat flattened 
in appearance, but definitely not truncate; the dorsal sur- 
face evenly convex, the edges with very small, inconspicuous 
scalloping; the occipital lobes very broadly convex anteri- 
orly, more strongly convex as the posterior border is ap- 
proached ; posterior border broadly and rather deeply ex- 
cised. Mandibles somewhat less than the length of the 
head alone, rather slender, the external borders gently con- 
vex; basal teeth stout, partially concealed by the clypeus 
when the mandibles are closed, followed by a toothless space 
the length of the mandibles anterior to the basal teeth, 
the toothless space terminated by 4 or 5 pair of acute teeth 
somewhat irregular in length, but longer basally, which 
meet the apical series of smaller irregular denticles. An- 
tennal scapes moderately curved, not angulate basally, about 
% the length of the funiculi; fourth funicular joint slightly 
longer than the first, terminal joint slightly longer than the 
remainder of the funiculus. Thorax similar to that of S. 
pulchella; with a distinct and somewhat constricted meso- 
epinotal suture. Epinotal spines moderately broad and 
thin ; infraspinal lamellae moderately broad, not or very 
slightly expanded ventrally. Petiole in lateral profile with 
node rather low but broad, the anterior slope rather short. 
Head, thorax and petiole reticulate-punctate, subopaque, 
the reticulations, especially on the mesonotum, tending to 
form faint longitudinal rugae. Meso- and metapleura, 
dorsum of the postpetiole and gaster smooth and shining. 
First gastric segment with numerous coarse longitudinal 
striae on the basal 1/3. 
Hairs on the clypeus short, subappressed, moderately 
squamose; the sides of the clypeus bearing a fringe of 10 or 
12 anteriorly curved hairs on each side, the hairs occurring 
as pairs, one hair in each pair long, very narrowly squa- 
mose, the others, arising medially to the first, shorter and 
more squamose ; hairs on antennal scapes comprising 5 or 6 
moderately long, narrowly squamose hairs on the external 
border curved toward the tips of the scapes, and in addition 
numerous thin, straighter, subappressed hairs. Thorax 
