156 
Psyche 
[December 
dibles and clypeus, sparser on the front and represented 
on the occiput by a single pair. Thorax without erect hairs. 
Crest of the petiole with several very short, delicate erect 
hairs. Erect hairs on the gaster widely and rather evenly 
spaced over the dorsum except at the base of the first seg- 
ment, which is hairless. Fore femora laterally compressed 
as in the major. Color: blackish brown, the mandibles 
and tarsal joints light brown. 
Female: head 1.25 mm., thorax and petiole 2.3 mm., 
overall length 6.0 mm. (Plate 13, figure 1) 
Head similar to that of the major but with all three 
ocelli large and prominent. Sculpture on the truncated 
Text-figure 1. Upper surface of the head of the major worker of 
Camponctus ( Colcbopsis ) papago sp. nov. 
portion of the head identical with that of the major. Re- 
ticulate sculpture on the frontal lobes smaller and shal- 
lower than that of the major and not extending as far 
back on the head. Eyes distinctly larger and more convex 
than those of the major. Hairs on the mandibles and the 
truncated portion of the clypeus longer and less clubbed 
than those of the major. 
