Vol. XXX] ENTOMOLOGICAL NEWS 287 



details should be re-interpreted in popular fashion for the 

 use of the average citizen. 



In the course of a week in the Park, during July, 1919, my 

 wife and I collected bees. The series obtained evidently rep- 

 resents only a minority of the species actually existing in the 

 area, but is worth recording. The names of the localities are 

 abbreviated as follows : 



(i) Canadian Zone. 



L. — Long's Peak Inn. July 19 and 21. 



T. S. — Twin Sisters Mountain, directly east of Long's Peak Inn. 

 All the collecting was done on the lower slopes, in the Canadian Zone, 

 July 23.* 



L. P. T. — Long's Peak trail, July 18. Most of the collecting was 

 done in the Canadian Zone, but a few specimens probably were from 

 the Hudsonian. 



(2) Hudsonian Zone. 



H. — Hudsonian Zone on Long's Peak trail, July 22. 



(3) Arctic-alpine Zone. 

 T. L. — Just above timber line on the Long's Peak trail, July 20. The 

 two species from Pentstemon flowers were at timber line. 

 B. — Battle Mountain, well above timber line, July 20. 



COLLETIDAE. 



Colletes kincaidii Ckll. L., one $ . 



Cblletes sp L., one $ . 



Colletes sp. L., one 9 . This and the preceding are apparently 

 new, but they may have been described in Professor Swenk's re- 

 vision, not yet published. 



Prosopididae. 



Prosopis personatella Ckll. L., 2 9 . 



Prosopis varifrons Cress. L., 2 ^ . H, 1 5, 49. L. P. T., 

 1 $. 



Prosopis tridentula Ckll. L. P. T., 1 $. 



Prosopis coloradensis Ckll. L., 2 9. These are considerably 

 larger and more robust than P. tucrtonis Ckll., generally considered 

 to be the female of coloradensis. Possibly tucrtonis is distinct after 

 all. but I cannot assert this at present. 



* On Twin Sisters, in an aspen grove, I took several specimens of 

 the Tipulid fly Ormosia cockcrclli (det. Alexander), a little yellow 

 species described by Coquillett under Rhypholophus in 1901, from a 

 single specimen which I took in the Hudsonian Zone in New Mexico. 

 Mr. Alexander had never seen any but the type. 



