412 Bulletin American Museum of Natural History. [Vol. XXXIV, 
36. Aphenogaster subterranea borealis subsp. nov. 
Worker. Length: 4.5-5.5 mm, 
Differing from valida, occidentalis and the typical subterranea in sculpture and 
coloration. The whole head is rugulose-punctate so that the occipital region is not 
or only very slightly shining. The pro- and mesonotum, too, are subopaque and 
densely punctate. The antennal scapes are of the same length as in the other sub- 
species, except valida. The gaster and nodes of the petiole and postpetiole are deep 
chestnut brown, the remainder of the body light brown, the head, especially behind, 
somewhat darker, the legs a little paler. 
Described from 18 workers taken by Prof. J. Chester Bradley at Lardo, 
Kootenay Lake, British Columbia. 
3’. Aphenogaster mutica Pergande. 
This species was originally described by Pergande:from San Jose del 
Cabo at the tip of Lower California. Dec. 16, 1901, I took a single worker 
specimen at Terlingua, Brewster Co., Texas, in the Great Bend of the Rio 
Grande. I have also received two workers from Dr. C. H. Tyler Townsend 
who took them at Cerro Chilicote in Chihuahua, Mexico. All of these 
specimens agree perfectly with Pergande’s description. 
38. Aphenogaster texana Hmery. 
Emery described this ant from two workers as a variety of A. fulva 
Roger, but study of a large series of specimens of all three phases convinces 
me that it should rank as a distinct species, which is, however, almost 
halfway between A. fulva and A. mutica Pergande. The head of the worker 
texana is more slender than that of fulva, including the mandibles twice as 
long as broad, and narrowed behind the eyes, so that the occipital region is 
not nearly as broad as in fulva and without posterior corners. The eyes are 
distinctly larger, the antennze decidedly longer, the scapes extending fully 4 
of their length beyond the posterior border of the head, the individual joints 
of the funiculi longer and more slender. The basal teeth of the mandibles 
are larger and more nearly of the same size as the apical teeth. The epino- 
tum is longer, its spines are short, acute, directed upward and very slightly 
backward. The postpeticle is more voluminous, compared with the petiole, 
and its node is more rounded. ‘The head and thorax are opaque and very 
densely punctate, the clypeus much smoother and more shining than in fulva, 
