304 ANNALS NEW YORK ACADEMY OF SCIENCES 



Calif. (5000 ft.) belong to this variety, which at first sight may be con- 

 founded with forms of C. herculeanus colored like the European type or 

 like the American C. tvliymperi. 



3. C. maculatus vicinus var. luteangulus van nov. 



Very similar to tlie typical vicinus, but the thorax of the major and minor 

 workers is paler, of a more yellowish red color and all of the worker forms 

 have a bright yellow spot on each of the posterior corners of the head. The 

 gaster of the largest workers is more or less yellowish red at the base. The 

 surface of the body is a little more shining than in vicinus but less so than in 

 the var. nitidiventris. Males without varietal characters. 



Described from several workers and males taken by C. R. Biederman 

 in Carr Canyon, Huachuca Mts., Arizona, one worker from the Yakima 

 River, Washington, taken by Samuel Henshaw, four workers taken by 

 W. M. Mann on Moscow Mt., Idaho, and three workers from Wawawai, 

 Washington, taken by the same collector. 



4. C. maculatus vicinus var. semitestaceus Emery 



Emeky, Zool. Jahrb. Abth. f. Syst, VII, p. 672. ^ , 1893. 



Described by Emery from a couple of workers from Plummer County, Calif., 

 5000 ft. (Theo. Pergaude), which had the thorax and legs reddish yellow, the 

 head dark ferruginous red, the vertex, mandibles and antennal scapes piceous 

 brown, the gaster clay yellow. Other specimens from Fuller's Mill, San 

 Jacinto, Calif., were still paler, being entirely clay-yellow, with the head 

 partly pale dirtj^ brown. The cheeks bore a few very short bristles, the erect 

 pilosity was more abundant than usual, especially on the gula. 



There are in my collection a worker media and a minor from the San 

 Jacinto Mts., Calif. (F. Grinnell, Jr.), referable to this variety. In the 

 media, however, the head and antennal scapes are entirely black and 

 opaque. The worker minor is red throughout, with the top of the head 

 slightly darker. 



5. C. maculatus vicinus var. nitidiventris Emery 



Emery, Zool. Jahrb. Abth. f. Syst, VIT, p. 672, g , 1893. 



Differing from the typical vicinus in the sculpture of the worker forms, the 

 shagreening of the gaster and often also of the head and thorax being finer 

 and more superficial, so that these parts are shining. The pubescence on the 

 body is also shorter and much less conspicuous, especially on the gaster. 

 There are no erect hairs on the cheeks. The thorax, legs and petiole are yel- 

 lowish red ; in major workers of most colonies, the gaster is black throughout, 

 but in some, it is more or less red or yellowish red at the base. In some 

 specimens which form a transition to the var. luteangulus, the posterior cor- 



