78 
Psyche 
[June 
distinctly reticulate. The surface between the rugae is 
densely and minutely granulose with the granules appear- 
ing in certain lights as tiny, crater-like rings. The upper 
surface of the head is dull or very feebly shining except for 
the anterior ends of the frontal lobes which are rather 
strongly shining. Mandibles with coarse longitudinal rugae, 
the surface between the rugae not sculptured, the entire 
mandible rather strongly shining. Antennal scapes moder- 
ately shining with prominent longitudinal rugules. 
Thoracic rugae notably reticulate and not parallel on the 
pronotum. Those on the mesonotum and the mesopleurae 
also reticulate but with more of a tendency to form roughly 
parallel, longitudinal ridges. These reticulate rugae turn 
upward and become transverse on the basal face of the 
epinotum. The granulate interrugal sculpture of the thorax 
is more feeble than that of the head and this makes the 
thorax somewhat more shining than the head. Posterior 
face of the node of the petiole reticulo-rugose. The inter- 
rugal areas, the front of the node and the entire postpetiole 
densely and finely granulose, dull or at most very feebly 
shining. Peduncle of the petiole and the coxae with fine 
punctures which are more widely spaced and do not dull 
the shining surface. Gaster very strongly shining with 
minute, widely scattered piligerous punctures. Femora 
strongly shining with extremely delicate reticulate sculp- 
ture. Tibiae more coarsely sculptered and not so strongly 
shining. 
Erect hairs on the upper surface of the head stout, 
tapered and rather variable in length. Those on the front 
of the clypeus long and stout, their length equal to that of 
the longer hairs in the gular ammochaetae. The hairs in 
the latter structures rather sparse, less than a dozen present 
at each side of the head. Hairs of the mandibular ammo- 
chaetae much shorter and finer than those of the gula. 
Erect hairs of the thorax very irregular in length, abundant 
on the promesonotum but sparser on the epinotum, where 
they are largely confined to an area just behind the meso- 
epinotal suture. Erect hairs on the petiole and post-petiole 
very similar to those of the thorax. Erect gastric hairs 
more uniform in length than those of the thorax, their 
length increasing gradually from the base of the gaster to 
