101 



kept watertight. This method cannot be expected to exterminate 

 the fly, though its nmnbers can be reduced immensely, and where 

 possible the collection of adult flies should be continued. Moreover, 

 in the author's opinion this method is the simplest, the least costly 

 and the most practicable of any as yet proposed for dealing with 

 Gloss ina, and should have the effect of keeping the fly at a minimum 

 harmless number, below wliich no method, short of defoHating the 

 whole country, could bring it. 



Dyar (H. G.). The Mosquitoes of British Columbia and the Yukon 

 Territory, Canada (Diptera, Culicidae). — Insecutor Inscitiae 

 Menstnms, Waslmigton, B.C., viii, no. l-o, January-March 1920, 

 pp. 1-27, 1 plate. 



An account is given of the exploration of the Canadian mosquito 

 fauna westward from the Continental Divide, the point reached in the 

 previous season [R.A.E., B, vii, 105]. 



The mosquitos of this region fall into two distinct groups, those of 

 the Canadian fauna proper, and those of the Pacific coast fauna, which 

 is found in those parts of the Pacific Coast in which pecuUar con- 

 ditions have been evolved, owing to the almost continual rain caused 

 by the moist winds from the Paciftc striking the high coastal mountains. 



Among those of the Canadian fauna the following occur in addition 

 to most of the species recorded in the previous paper \loc. cit.'] : Acdes 

 'pullatus, Coq., A. stimulans, Wlk., A. mercurator, sp. n., A. callithotrys, 

 sp. n., A. curriei, Coq., A. aestivalis, Dyar (in the Southern fringe of the 

 Canadian fauna), A. varipalpus, Coq., Theobaldia {Culiseta) incidens, 

 Thoms., and T. alaskaensis, Ludl. 



The author has revised his opinion with regard to the identification 

 of two species, and to avoid confusion, proposes to use the names 

 A&les territans (restuans) and A. impiger {decticus). 



In the Pacific Coast fauna the conditions have produced an entire 

 change in the species of A&les, but not in those of Theobaldia, Three 

 species of Aedes were observed. A. cyclocerculus, sp. n., A. leuconotips, 

 sp. n., and A. aboriginis, Dyar. Keys are given to these species and 

 to the closely allied A.punctor and A. hexodontus, Dyar, from California. 



Dyar (H. C). A second Culex of the Subgenus Tmyisculicia, Dyar 



(Diptera, Culicidae). — Insecutor Inscitiae Menstruus, Washington, 



B.C. viii, no. 1-3, January-March, 1920, pp. 27-29. 



Culex (Transculicia) petersoni, sp. n., from the Virgin Islands is 



described. The author considers that from the close similarity of the 



larva of C. j)etersoni to C. bahamensis, D. & K., hitherto known only 



in the larval stage, it is evident that C. {Transculicia) eleuthera, Dyar, 



is the adult of C. {T.) bahamensis, the latter name having priority. 



Dyar (H. C). Note on the Subgenus Neoculex of Oulex (Diptera, 

 Culicidae). — Insecutor Inscitiae Menstnms, Washington, B.C., 

 viii, no. 1-3, January- March 1920, p. 36. 

 The characters of the subgenus Neoculex are given. To it belong 



Culex testaceus, Wulp, in America, and the European species, Culex 



modestus, Fie, and C. hortensis, Fie, the genitalia of these species are 



described, and their svnonyms noted. 



