59.57,96(7) 
Article XII.— SOME ADDITIONS TO THE NORTH AMERICAN 
ANT-PAUNA, 
By Wriui1am Morton WHEELER, PH.D. 
Family FORMICIDAE. 
Subfamily PoNERIN«. 
1. Stigmatomma pallipes arizonense subsp. nov. 
Worker. Length nearly 4 mm. 
Differing from the worker of the typical form in its somewhat smaller size, in 
having the head narrower in front so that the sides are nearly parallel, in the feebler 
development of the teeth at the anterior corners of the head and in sculpture, pubes- 
cence and coloration. The punctuation of the head and thorax is finer and denser © 
so that these parts are distinctly more opaque than in the typical form, the pubescence 
is shorter and seems to be lacking on the upper surface of the head, and the whole 
body is dull ferruginous, with scarcely paler legs, whereas in the typical pallipes the 
head, thorax and petiole are usually blackish in mature specimens and the legs, 
mandibles and antenne are testaceous. 
Described from a single worker taken by Mr. W. M. Mann in Ramsay 
Cafion, Huachuca Mountains, Arizona, at an altitude of 5800 ft. 
2. Stigmatomma pallipes oregonense subsp. nov. 
Worker. Slightly larger than the typical pallipes; head somewhat shorter; 
antennal scapes longer, so that their reflected tips reach the lateral margin of the head 
two-thirds the distance from the anterior to the posterior corners; eyes distinctly 
larger; teeth on the anterior border of the clypeus smaller and more numerous (9 to 
10). Petiole from above as broad as long, with convex sides. In the typical form 
it is distinctly longer than broad, with rather straight, subparallel sides. Sculpture, 
pilosity and color as in the type. 
Female (deilated). Closely resembling the worker; eyes much larger than in the 
typical pallipes. 
Described from eight workers taken at Marion, Oregon, by Rev. Pods 
Schmitt O. §. B., and four females and five workers taken by Mr. Trevor 
Kincaid at Olympia, Washington. 
1 Contributions from the Entomological Laboratory of the Bussey Institution, Harvard 
University, No. 88. 
389 
