AEDES CANADENSIS , 653 



up to the 21st of that month. Perhaps the greatest abundance of canadensis 

 is in late May, and thereafter a constant decrease. It occurs throughout the 

 State. 



" Breeding places are any sort of woodland pools or even larger water bodies. 

 Mr. Brakeley finds them in the water covering his cranberry bogs during the 

 winter, sometimes in very large numbers. These bogs are covered with water 

 late in fall and are kept covered until the middle of May thereafter, just long 

 enough to mature canadensis. From that time until late October the bogs are 

 dry, and when they are flooded canadensis adults have disappeared. The eggs 

 must, therefore, have been laid on the bogs when they were dry, to account for 

 the swarms of larvag found in early May. It should be noted that these bogs are 

 closely surrounded by woodland. 



" I have never found the larva in open swamps or in pools far from the edge 

 of a wood, but it was present once in a pool Avith cantator at the edge of the 

 Shrewsbury meadow. 



" Though the larvae may be found in all sorts of pools, they are commonly of 

 clean water. Woodland springs nearly always have some of them, and the pools 

 in which they are most plentiful are those formed by melted snows and early 

 spring rains over a bed of dead leaves in a depression or choked stream bed near 

 the edge of the woodland, or in a small clearing. I have never found them in 

 really foul water." 



We can add to the observations of Prof. Smith that we have repeatedly found 

 the larvas in temporary pools in open meadows or pastures, early in the spring, 

 in New England. In the southern part of its range the species is less common 

 and larval development depends upon the formation of temporary pools by 

 heavy rains. 



North America, east of the Plains ; westward in Canada to the Eocky Moun- 

 tains. 



Kaslo, British Columbia, June 3, 1903 (H. G. Dyar) ; Oxbow, Saskatchewan, 

 June 13, 1906 (F. Knab) ; Bigfork, Montana, August 20 (Edith Eicker) ; 

 White Eiver, Ontario, June 25, 1907 (F. Knab) ; Ottawa, Ontario, May 8 (J. 

 Fletcher) ; Younghall, ISTew Brunswick, July 2, 1908 (A. Gibson) ; St. John, 

 New Brunswick, August 10, 1900 (W. Mcintosh) ; Center Harbor, New Hamp- 

 shire, May 16, 1902 (H. G. Dyar) ; White Mountains, New Hampshire (H. K. 

 Morrison) ; Dublin, New Hampshire, May, June, 1909 (A. Busck) ; Caribou, 

 Maine, August 17, 1906 (E. M. Patch) ; lincolnville, Maine, August, 1908 

 (H. G. Dyar) ; Ithaca, New York, May 4, 1903 (0. A. Johannsen) ; Spring- 

 field, Massachusetts, May 15, September 1, 1903 (F. Knab) ; Westfield, Massa- 

 chusetts, July 30, August 23, 1903 (F. Knab) ; Cummington, Massachusetts, 

 May 30, 1903 (F. Knab) ; Tupper Lake, New York, September 7, 1906 (H. G. 

 Dyar) ; Suffield, Connecticut, May 20, 1903 (F. Knab) ; Shenks Ferry, Pennsyl- 

 vania, October 14, 1901 (S. E. Weber) ; Bladensburg, Maryland, June 17, 1903 

 (F. C. Pratt) ; Lloyds, Maryland, July 10, 1907 (H. S. Barber) ; Plummer s 

 Island, Maryland, May 20, 1903 (W. V. Warner) ; Woodstock, Virginia, June 2, 

 1903 (F. C. Pratt) ; Glen Carlyn, Virginia (H. G. Dyar) ; Mount Vernon, Vir- 

 ginia, April 29, 1903 (W. V. Warner) ; Eichmond, Virginia, September 26, 

 1901 (E. G. Williams) ; Hartsville, South Carolina, June 25, 1901 (W. C. 

 Coker) ; Corbin, Kentucky, August 24, 1903 (H. S. Barber) ; Scott, Lonoke 

 County, Arkansas, April 28, 1909 (J. K. Thibault, jr.) ; Magnolia Springs, 

 Florida, March 3, 1905 (Dyar and Caudell) ; Jacksonville, Florida, March 2, 

 1905 (Dyar and Caudell) ; Green Cove Springs, Florida, March 4, 1905 (A. N. 

 Caudell) ; Orange City Junction, Florida, March 20, 1905 (Dyar and Caudell). 



