534 WHEELER. 



this ant from many other locaHties from British Columbia to Connecti- 

 cut. It is very widely distributed in the Transition and Canadian 

 Zones. Of the numerous colonies seen in California and British Amer- 

 ica during the summer of 1915 few contained slaves (F.fusca). 



99. Formica sanquinca subsp. jmbenda Emery. 

 Arizona: Graham Mts. (E. G. Holt). 



Recorded from various localities in South Dakota, Colorado, Utah, 

 Washington, Montana, New Mexico, Texas, Missouri and Illinois. 



100. Formica sanguinea subsp. obtusopilosa Emery. 



An imperfectly known subspecies described from a single worker 

 taken in New Mexico. 



101. Formica munda Wheeler. 



Known from several localities in Colorado, New Mexico, South 

 Dakota, Montana and Alberta where it occurs below elevations of 

 7000 ft. 



102. Formica munda var. alticola var. nov. 

 Worker. Length 4.5-5 mm. 



Differing from the typical munda in having the red portions of the 

 body of a much deeper shade, and the petiole and dorsal portion of the 

 head infuscated. The erect hairs on the head and thorax are distinctly 

 more abundant than in munda. 



Described from seventeen specimens taken by Mr. E. J. Oslar in 

 Jefferson County, Colorado at an altitude of 9500 ft. This is clearly 

 an alpine variety. One of the specimens is a pseudogyne, with very 

 convex pro- and mesonotum and well-developed scutellum and meta- 

 notum, but without traces of wings. 



103. Formica emeryi Wheeler. 



Known only from Broadmoor, near Colorado Springs, Colo. 



104. Formica manni Wheeler. 

 Idaho: Boise (A. K. Fisher). 



Originally described from several localities in Washington and 

 Owen's Lake, California. 



105. Formica perjnlosa Wheeler. 



Occurring at rather low elevations in Colorado, New Mexico, Ari- 

 zona, Western Texas and Northern Mexico. 



