MOUNTAIN ANTS OF NORTH AMERICA. 507 



transcribed from my recent paper on the American species allied to 

 31. rubraLsitr. (Psyche, 21, 1914, pp. 118-122). 



23. Myrmica {N comyrma) mutica Emery. 



Colorado: Denver; type locality (E. Bethel); Colorado Springs, 

 Salida, Buena Vista and Wild Horse, 6000-7000 ft. (Wheeler) ; Canyon 

 City (Rev. P. J. Schmitt). 



New Mexico: (Ern. Andre). 



Utah: Salt Lake County (R. V. Chamberlin), as the host of the 

 peculiar xenobiotic ant, Symmynnica chamherlini Wheeler. 



Washington: Olympia (T. Kincaid); Ellensburg and Pullman 

 (W. M. Mann). 



Alberta: McLeod (C. G. Hewitt). 



British Columbia: Dog Lake, Penticton (C. G. Hewitt). 



24. Myrmica {Neomyrma) aldrichi Wheeler. 

 Idaho: Moscow (J. M. Aldrich). 



25. Myrmica {Neomyrma) hunteri Wheeler. 



Montana: Madison R. near Beaver Creek, 7500 ft. (S. J. Hunter). 



26. Leptothorax andrei Emery. 



Originally described from California. I possess several workers 

 taken by Dr. W. M. Mann at Palo Alto in that state. 



27. Leptothorax eldoradensis Wheeler. 



Taken on Mt. Wilson near Pasadena by Prof. J. C. Bradley. 



28. Leptothorax schviitti Wheeler. 

 Known only from Canyon City, Colo. 



29. Leptothorax neomexicanus Wheeler. 

 Described from Manzanares, New Mexico. 



30. Leptothorax nitens Emery. 



Known from Utah, California and Colorado. 



31. Leptothorax nitens var. heathi Wheeler. 

 Known only from California. 



32. Leptothorax nitens var. mariposa var. no v. 



Worker. Resembling the var. heathi in being brown, with yellow 

 legs and antennae, but the thorax is opaque and densely punctate 



