MOUNTAIN ANTS OF NORTH AMERICA. 561 



6000 ft., where it was repeatedly taken by Dr. W. M, Mann, Mr. C. R. 

 Biedermann and myself. 



214. Camponotus (Myrmoturba) fumidus Roger var. festinatus 

 Buckley. 



Recorded from several localities in Texas, west of Austin and San 

 Antonio, and from Arizona and Mexico as far south as Cuernavaca. 



215. Cartiponotus (Myrvioturba) fumidus var. fragilis Pergande. 

 Taken by Dr. G. Eisen at San Jose del Cabo and San Fernando, 



Lower California. 



216. Caviponotus {Myrmoturba) fumidus var. spurcu^ Wheeler. 

 Described from Western Texas and the Huachuca Mts. Ariz. 



217. Camponotus (Myrmoturba) vafer Wheeler. 

 Known only from the Huachuca Mts., Ariz. 



218. Camponotus {Myrmoturba) acutirostris Wheeler. 



Originally described from Alamogordo in the foot-hills of the Sacra- 

 mento Mts., New Mexico (G. v. Krockow) and Box Canyon in the 

 same region (A. G. Ruthven). 



219. Camponotus {Myrmoturba) acutirostris var. clarigaster Wheeler. 

 Known only from the Grand Canyon, Ariz., 3000 ft. 



220. Camponotus {Myrmoturba) ocreatus Emery. 



Emery described this ant as a subspecies of maculatus from the 

 Panamint Mts., Cala. Not having seen worker specimens I long 

 suspected that it might prove to be identical with my acutirostris from 

 Arizona. Recently I found a fine series of cotypes of ocreatus in the 

 Pergande Collection (U. S. Nat. Mus.) and these show that the form 

 is not only distinct from the typical acutirostris but that it is an inde- 

 pendent species. The worker major of ocreatus has a much broader 

 head, the clypeus is broader than long and its median lobe, though 

 somewhat acute, is much shorter, less projecting and less angular than 

 in acutirostris. The frontal carinae of the latter are much more lyri- 

 form and the color is different. In ocreatus the whole head, including 

 the mandibles, clypeus, scapes and first funicular joint, is black, as 

 are also the tibiae, the tips of the femora and the dorsal surface of the 

 pronotum and anterior portion of the mesonotum. The cheeks lack 

 erect hairs and foveolae. My subsp. primipilaris, however, evidently 



