Dyar (H. G.). Notes on Aedes at Lake Pend d'Oreille, Idaho (Diptera, 

 Culicidae). — Insecutor Inscitiae Menstruus, Washington, B.C., v, 

 no. 7-9, July-September 1917, pp. 102-104. 



The following species of Aedes were taken in mountainous country 

 well forested with conifers down to the lake margin : A. aestivalis, 

 Dyar ; A. idahoensis, Theo. ; A. cinereus, Meig. ; A. canadensis, Theo.; 

 A. vexans, Meig. ; and A. sansoni, D. & K. 



Dyar (H. G.). Notes on the Aedes of Montana (Diptera, Culicidae). — 



Insecutor Inscitiae Menstruus, Washington, D.C., v, no. 7-9, July- 

 September 1917, pp. 104-121. 



Disregarding the high forested regions and the sparsely wooded 

 hills, and referring only to the river valleys, it appears that mosquitos 

 are naturally abundant in Montana, and certain species have been 

 much increased in numbers by artificial conditions, breeding success- 

 fully in pools produced by irrigation. Originally confined to a single 

 annual generation following the spring snows, many species now breed 

 as often as the farmers furnish suitable pools, e.g., Aedes curriei, 

 A. nigromacidis, A. vexans, A. trivittatus and A. spenceri. The river 

 valleys furnish two faunal areas : the wooded river bottom itself, 

 characterised by Aedes aldrichi, A. cinereus and A. sansoni ; and the 

 high flood plain, destitute of trees and resembling a prairie, 

 characterised by A. curriei, A. nigromaculis and A. idahoensis, and 

 invaded by A. vexans, which, however, is commoner in the river 

 bottom, 



A. curriei, Coq., is a widespread species, especially on the prairie, 

 the larvae appearing in the early snow pools. The eggs will hatch the 

 same year as laid, and in the presence of irrigation other broods appear 

 every time that suitable pools are formed. A. campestris, D. & K., 

 is a closely allied form, differing in being slightly larger. A. canadensis, 

 Theo., is found only near the mountaiDs, not in the plains and river 

 valleys, being characteristic of the northern Atlantic coast region, 

 extending to Florida and westward through Canada to the Rocky 

 Mountains. A. nigromaculis, Ludl., occurs in the prairie section of the 

 river valleys. The eggs hatch whenever submerged, overwintering 

 not being necessary. Psorophora. signipennis, Coq., was previously 

 recorded only from Mexico, Texas, and New Mexico. Other species 

 mentioned are : A. fietcheri, Coq., A. riparius, D. & K., A. san- 

 soni, D. & K., A. mimesis, sp. n., A. triseriatus. Say, A. pullatus, Coq., 

 A. prodotes, sp. n., A. aestivalis, Dyar, A. idahoensis, Theo., and 

 A. aldrichi, D. & K. 



Dyar (H. G.) & Knab (F.). Notes on ^e<?es curriei (Coquillet) (Diptera, 

 Culicidae).- — Insecutor Inscitiae Menstruus, Washington, B.C., v, 

 no. 7-9, July-September 1917, pp. 122-125. 



This paper discusses the synonymy of A. curriei, which is now 

 considered to constitute but a single species ranging over most of the 

 United States ; it is strongly established in the western plains and the 

 desert country of Utah, Nevada and eastern Cahfornia, but also 

 penetrates to all the coasts, including those of New England and the 



