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



in the spring when they are covered with water. Breed in all sorts of 

 temporary or semi-permanent pools. Air-tube of the larva short or 

 medium in length. The majority have one generation each year, the 

 adults appearing in the spring and the females living for two months or 

 more. The salt-marsh, tree-hole, and rock-pool mosquitoes have more 

 than one generation. Adults are mostly evening or night flyers, but some 

 are active during the day. All the females will bite and suck blood. 

 Adults generally occur in woods, but some are found in the open and 

 a few enter houses readily. This genus contains over half of the species 

 found in New Hampshire, and includes our most common mosquitoes. 

 Aedes trivittatus (Coq.). Three-striped mosquito. 



Breeds in the flood-pools of rivers, also in rain-filled ground pools. 

 Has been found in Maine and Massachusetts, and certainlj' occurs in the 

 state. 



Aedes intrudens Dyar 



Breeds very early in ground pools formed by melted snow. Adults 

 disappear by July. Differs from other woods mosquitoes in that it en- 

 ters houses freely. 



Dublin, May 23 (E. C. Stowell) ; Jaffrey, June 4 (C.W.J.) ; Glen House, 

 June 14, (C.W.J.) ; Bretton Woods, June 25, June 28 (C.W.J.) ; Durham. 

 May 3. 



Aedes diantceus H. D. & K. 



Breeds in early ground pools, especially in spruce bogs. A rare spe- 

 cies found in dark woods. 



Dublin, May and June (A.B.) ; Jaffrey, June 9 (C.W.J.) 



Aedes aurijer (Coq.) 



Breeds in temporary pools in spring, especially in open bogs and 

 swamps. Rare. . 



Center Harbor, July 22 (H.G.D.) ; Dublin, June (A.B.) 



Aedes hirsuteron (Theo.) 



Breeds in flood pools of rivers and sometimes in early woodland pools. 



Dublin, June (A.B.) ; Hanover, July 8 (C.W.J.) 



Aedes punctor (Kirby) 



Breeds in early pools, especiallj' mossy woodland pools and bog pools. 

 Females long lived. n 



Dublin, May (A.B.) ; Hanover, July 4 (C.W.J.) 

 Aedes implacabilis (Walker) 



Breeds in early, cold, woodland pools. 



Dublin, May and June (A.B.) 



Aedes impiger (Walker) 

 Larv^ae in the earliest spring pools. Not common 

 Franconia; White Mountains; — records from Johnson. 



Aedes communis (DeG.) Black-legged mosquito. 

 Larvae in the early woodland pools. This is our most common black- 

 legged woods mosquito. 



Dublin, May (A.B.) ; Jaffrey, June 4-15 (C.W.J.) ; Mount Washington 

 (.A.T.Slosson) ; White Mountains (H.K.Morrison); Glen House, June 14 



