T. D. A. COCKERELL. 291 



Canadian and Transition. 



P. tridentula Ckll. Beulah ; Mescalero ; Rio Ruidoso. Typ. loc. in Colo., at 

 9500 ft. 



Transition Zone. 

 p. rudbeckise Ckll. aud Casad. S. F.* (7000 ft.) 



Upper Sonoran Zone. 



P. divergens Ckll. Pecos. Typ. loc. in Colo., at 7000 ft. 

 P. asinina bigelovise Ckll. Albuquerque.* 



Upper to Middle Sonoran. 



P. mesillse Ckll. M. V.,* L. V., Pecos. Extends to Phoenix, Ariz. (Lower 



Sonoran.) 

 P. asinina Ckll. and Casad. M. V.,* Pecos. 



COL,L,ETES Latr. 

 The new records, of which details are given, are derived from a small series 

 kindly identified by Mr. Sweuk. 



Hudsonian to Canadian. 



C. nigrifrons Titus. Top of Las Vegas Range; Crew's Mesa; Beulah (B. Chap- 

 man). 

 C. oromontis Vier. Top of Las Vegas Range, June 28th, 9 (C.) ; Beulah.* 



Canadian Zone. 

 C. blgelovise Ckll. Beulah ; Sacramento Mts. * 

 C. bi-evispinosus Vier. Benlah.* Mr. Swenk believes that bigelovice and 



brevispinofius ouglit not to be separated from armaius. 

 C. kincaidii Ckll. Rio Ruidoso. 



C. spurcus Vier. Beulah *; Dailey Canon, Aug. 10th (T. and W. Ckll.). 

 C. delodontus Vier. Beulah.* Fls. Roripa. 

 C. paniscus Vier. Beulah.* 

 C. zonatus Vier. Beulah.* Fls. Prunus. 



Canadian to Upper Sonoran. 



C. simulans Cress. Beulah (M. D. Ckll.) ; Enibudo. Mr. Viereck states that 

 Cresson's simulans included two species, one with, the other without, dark 

 hairs on the thorax above. He considers the latter the true type, tliough 

 I took the former for such in my table in Psyche, October, 1905. Mr. 

 Swenk writes that he now believes that the insect be recorded as simulans 

 from Olympia, Wash., was only a small kincaidii; he also holds that my 

 C. andrewsi is the 9 of true simulans, of which he has both sexes from 

 Sioux Co., Nebraska. 



C. skinneri Vier. Beulah * ; Pecos, Aug. 31st (C). 



TBANS. AM. ENT. SOC. XXXII. OCTOBEK, 190(j. 



