4 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 75 



in a rather shallow canj^on in which are grassy spots surrounded by 

 willows. 



AEDES COMMUNIS DeGeer 



Very abundant in the forests of Glacier National Park both in 

 1921 and 1926. The adults are very variable in size and ornamen- 

 tation. I have examined bred specimens from Chestnut May 2, 1928, 

 and Squaw Creek, May 6, 1928, both collections made bv G. Allen 

 Mail. 



AEDES PIONIPS Dyar 



Occasional in the forests of the Glacier National Park.^ I also 

 received specimens from W. B. Mabee collected on June 28, 1916, at 

 Bozeman, Gallatin County, in a very shallow pool in a clover field 

 where clover leaves practically covered the pool. The field is near 

 the center of Gallatin Valley, some 4 or 5 miles from the nearest 

 mountains. This is very unusual occurrence for the species (1388). 



AEDES CATAPHYLLA Dyar 



In the Glacier National Park in 1926 the "graybacks" were the 

 first mosquito on the v/ing, but not in large numbers. Larvae had 

 practically all passed at the time of my arrival and the adults dis- 

 appeared soon also. The breeding places seem to be in the edges of 

 large marsh pools. Worn females were found around the edges of 

 one such, where they had evidently been ovipositing. The central 

 part of these pools are permanent, but the edges go dry for long 

 distances. G. Allen Mail bred a culture from Bridger Canyon, May 1> 

 1928, where they were associated with Aedes increpitus mutaius Dyar. 



AEDES IMPIGER Walker 



This occurred in the Glacier Park with Aedes cataphylla, the larvae 

 having all passed by April 15, 1926; but a few undoubted adults 

 were taken on the wing. Mr. Mabee transmitted bred specimens, 

 but I have not the exact data before me (473). 



AEDES NEARCTICUS Dyar 



This is the "little black mosquito" frequenting all the higher 

 passes of the Glacier Park in midsummer. In 1926 Park Ranger 

 Paul Schoenberger went to the head of Swiftcurrent Pass and to the 

 foot of the Grinnell Glacier for me and found this species breeding 

 in large numbers together with communis and puUatus. The altitude 

 is only about 5,300 feet, but the presence of the ice cools the region. 

 Eric Hearle, at Banff, did not find this species breeding below 6,000 

 feet. As with the Californian high altitude form, Aedes ventrovittis 

 Dyar, the distribution appears to be upward, as found by Professor 

 Freeborne.^ 



'Ins. Ins. Mens., vol. 10, p. 85, 1922. 



8 Univ. of Calif. Pubs., Tech. Bull. Coll. Agr., Agr. Expcr. Station, vol. 3, p. 378, 1926. Theferaale-sare 

 not found biting in the forest. 



