408 Bulletin American Musewm of Natural History. [Vol. XXXIV, 
and finer; the latter are not reticulate, and the punctures on the smooth 
- portions of the head are much finer and less conspicuous. The postpetiole 
has more acute anterior angles. There is some variation in color, but none 
of my.specimens is as dark as those described by Emery. . 1 am unable to 
distinguish the workers of this form from those of californica by any reliable 
characters. Three females (deilated) measure 3.5 mm. and differ from the 
same sex of californica in having the head less coarsely sculptured and the 
post-petiole with more acute and longer lateral conules. The body is 
reddish testaceous, with a large spot on the ocellar region, three longitudinal 
bands on the mesonotum and the gaster behind the first segment, dark 
brown; legs yellowish. 
Numerous specimens from the following localities; Marion County, 
Oregon (P. J. Schmitt), Almota, Washington (A. L. Melander); Wawawai 
and Pullman, Washington (W. M. Mann); and Julietta, Idaho (J. M. 
Aldrich). 3 3 
29. Pheidole californica nevadensis subsp. nov. 
Soldier. Resembling the typical californica in coloration and the shape of the 
head, but its sculpture is more like that of oregonica, with sharp, more reticulate and 
slightly more delicate occipital rugz and feebler punctures on the smooth area. The 
thorax, however; is smooth and shining throughout, even the epinotum and the 
anterior corners of the postpetiole being rather sharp as in oregonica. In the worker 
the antennal scapes do not reach beyond the corners of the head and are therefore 
decidedly shorter than in either californica or oregonica. The thorax is smooth and 
shining even in the epinotal region as in the soldier. A single dedlated female meas- 
ures only 3.5 mm. The head is move shining and less heavily sculptured than in 
californica and the cones of the postpetiole are less produced than in oregonica. The 
body is rufo-testaceous, with a spot on the ocellar region, the mesonotum, scutellum, 
pedicel, and gaster castaneous. Antenne and legs yellow, the middle portions of the 
femora brown. 
Described from a female, four soldiers and five workers taken by Mr. 
W. M. Mann at Pyramid Lake, Nevada. 
30. Pheidole californica micula subsp. nov. 
Soldier. Length: 2.4-2.6 mm. 
Head narrower and smaller than in the typical californica, with shallower occipital 
excision and more rounded occipital lobes, the rug and punctures on the head very 
fine and indistinct so that its whole surface is more shining; the occipital ruge, how- 
ever, very sharp and regular, not reticulate. Thorax and pedicel subopaque, very 
finely and densely punctate, humeri with a few rugules, pro- and mesonotum above 
rather smooth and shining: Gaster glabrous and shining. Epinotal spines and 
