20 N. H. AGRI. EXPERIMENT STATION [Bulletin 243 



Aedes sollicitans (Walker). White-marked salt-marsh mosquito 



Breeds in the pools in the salt marsh along the coast. Several gen- 

 erations, the number depending on the filling of the pools by extra high 

 tides or heavy rains. The saltier pools are preferred, but larvae can live 

 in water ranging from fresh to that 25% more salt than sea water. Fe- 

 males fly long distances, flights of forty miles being on record. Females 

 severe biters both by day and night, and enter houses freely. 



Hampton, June 26 — Aug. 13 (S. A. Shaw) ; Rye and North Hampton, 

 June 11 — Oct. 22; Durham, June 15 — Aug. 25; Isles of Shoals, July 27 — 

 Aug. 4; Epping, Aug. 22. 



Aedes tceniorhynchus (Wied.). Small salt-marsh mosquito. 



Breeds in salt or fresh water along the seacoast, preferring water only 

 slightly salty. Several generations. Not yet collected in the state. 

 Aedes tri-seriatus (Say). Tree-hole mosquito. 



Breeds in the water in holes in the trunks of trees. Eggs laid on the 

 sides of the cavity, just above the water line. Probably several gener- 

 ations. Local in distribution. 



Center Harbor, June 24 (H.G.D.) ; Durham, Sept. 21. 

 Aedes vexans (Meigen). Swamp mosquito. 



Breeds in many temporary ground pooLs, particularly open, grassy 

 swamps. Overwintering eggs do not all hatch at once, but some of 

 them hatch each time the pool is filled by rains. A common species. 



Center Harbor, Aug. 22 (H.G.D.) ; Rye, June 1— Aug. 5. 

 Aedes cinereus Meigen. Little smoky mosquito 



Breeds in various temporary ground pools. All over-wintering eggs 

 do not hatch in the spring, some hatching each time the pools are filled 

 by hea^'y rains throughout the summer. Lar\a slow in development. 



Center Harbor, Aug. 5 (H.G.D.); Dublin, May (A.B.) 



Genus Culicella 



Culicella melanura (Coq.) 

 Breeds in cold springs or permanent bog pools. Winter passed in the 

 larval stage. Rare and local in distribution. No records of its biting 

 habits. Eggs apparently laid singly on surface of the water. Several 

 generations. 



Center Harbor, Aug. 19 (H.G.D.) ; Durham, Sept. 21. 



Culicella dyari (Coq.) 

 Breeds in cold spring or bog pools. Apparently one generation from 

 overwintering eggs, but little is known of its life history. No records 

 of its biting. Rare and local in distribution. 

 Center Harbor, May (H.G.D.); Dublin (A.B.) 



Culicella inornata (Williston) 

 Breeds in permanent stagnant ground pools. Winters as an adult. 

 Eggs laid in rafts on the surface of the water. Several broods. Females 

 seldom bite humans, preferring the larger mammals. Not yet collected 

 in the state. 



Culicella impatiens (Walker) 

 Breeds in permanent forest-pools and springs. Winters as an adult. 



