INSECUTOR INSCITI^ MENSTRUUS 116 



Cule.v (Culicada) stimulans Speiser, Schr. d. Physik.-okonom. 



Ges. zu Konigsb., xlix, 391, 1908. 

 Culicada maculatus Theobald (in part, not Meigen), Mon. Culic, 



V, 296, 1910. 

 Culicada subcantans Theobald, Mon. Culic, v, 297, 1910. 

 Culicada subcantans de Meijere, Tidsk. v. Ent., liv, 146, 1911. 

 Acdcs subcantans Felt, Kept. N. Y. State Ent., 31, 66, 1916. 

 Ai'des stimulans Howard, Dyar & Knab, Mosq. N. & Cent. Am. 



& W. I., iv, 679, 1917. 



This form inhabits the northern Atlantic region westwar3 

 to the plains. The larvae occur in early pools, especially those 

 that have been actually overflowed by high water rather than 

 seepage-filled. The female adult cannot be certainly distin- 

 guished from excriicians and fitchii, with which it flies. 



Aedes stimulans albertae, new subspecies. 



Acdes stimulans Dyar, Ins. Ins. Mens., viii, 12, 1920. 



Mesonotum brightly marked, dark brown in broad central 

 stripe and shaded posterior-lateral ones, the sides light yellow ; 

 abdomen with narrow basal abdominal white bands ; wing- 

 scales wholly black. 



• Types, two males and one female, No. 32885, U. S. Nat. 

 Mus. ; Edmonton, Alberta, Canada, May 11, 14, 17, 1919 

 (H. G. Dyar). 



This form was bred from larvae in early marsh-pools with 

 other early species. The dififerences in the larvae from stimu- 

 lans stimulans have been discussed in the literature quoted. 



Aedes stimulans mercurator Dyar. 



Acdcs mercurator Dyar. Ins. Ins. Mens., viii, 13, 1920. 

 This race inhabits the Yukon Valley in Yukon Territory and 

 presumably in Alaska also. The larvae are essentially as in 

 stimulans stimulans, though separated from that subspecies ; 

 but the male hypopygium continues the modification, which 

 progressively increases northwestward, of reduction of the 

 setae on the outer lobe of the side-piece. 



Species 5 

 Aedes cantator cantator Coquillett. 



Culex spf (salt marsh). Smith, Ent. News, xii, 301, 1902. 

 Culcx cantons Dyar (not Meigen), Proc. Ent. Soc. Wash., v, 



47, 3902. 



