attention to general health, the provision of an ample supply of 

 suitable food, the avoidance of undue fatigue and excessive exposure 

 to the sun, and the prevention of chills, attention to which in time of 

 peace will ensure the efficiency of the army in time of war. 



HuTSON (J. C). Warble Flies. — Agric. News, Barbados, xvi, no. 403? 

 6th October 1917, pp. 3U-315. 



This paper summarises the information which has appeared in the 

 literature on the warble flies, Hijpoderma lineatum and H. bovis. 



Seale (A.). The Mosquito Fish, Gambusia affinis (Baird and Girard), 

 in the Philippine Islands.^ — Philippine Jl. Science, Manila,, xii, 

 Sec. D, no. 3, May 1917, pp. 177-187, 1 fig. [Received 8th 

 November 1917.] 



In 1905 the experiment was tried of stocking the ponds and breeding 

 pools of mosquitos in the Hawaiian Islands with mosquito-feeding 

 fish, the species selected being Gambusia affinis, from Texas. These 

 fish have multiplied rapidly, several hundred thousand having been 

 bred and distributed from the few hundred introduced. They 

 effectively clear the water of mosquito larvae and of the egg-masses of 

 Culex pipiens on the surface. In 1913, 24 of these fish were brought 

 from Honolulu to the Philippine Islands ; these now number more 

 than 7,600 in the streams and swamps of the Philippines. They have 

 proved capable of maintaining themselves in ponds already stocked 

 with Micropterus salmonoides (black bass) and such native fish as 

 Ophiocephalus striatus and Therapon argenteus, and have even 

 multiplied in the presence of these voracious species. There remains 

 no doubt that Avithin a few years they will materially decrease the 

 numbers of mosquitos and greatly assist in eliminating malaria from 

 the Islands. 



Dyar (H. G.). The Mosquitoes of the Pacific Northwest (Diptera, 

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

 no. 7-9, July-September 1917, pp. 97-102, 1 plate. 



As compared with California, the Pacific North-west is poor in 

 mosquitos, both in individuals and species. Only three black-legged 

 species of Aedes occur in the mountains instead of six as in California, 

 this being the result of the climate, frequent rains producing dense 

 forest with moss and undergrowth together with permanent pools in 

 which Aedes do not thrive. The species of Cidex, Cidiseta and 

 Anopheles that frequent such places are the same as in Cahfornia, 

 minus the tropical element. 



The following species occur : Aedes aloponotum, sp. n., a peculiar 

 species of the A. cantans group ; A. increpitus, Dyar ; A. curriei, Coq., 

 a coast species breeding in tidal pools ; A. cinereus, Meig. ; A. vari- 

 palpus, Coq. ; A. aboriginis, sp. n. ; A. altiusculus, sp. n., the larvae 

 of which were found in water underlying snow ; Culiseta im- 

 patiens, Walk., larvae of which were found in a dark forest pool, being 

 preyed upon by larvae of Eucorethra ; C. incidens, Thoms. ; Culex 

 tarsalis, Coq. ; C. saxatilis, Grossbeck (territans, auct.) and Anopheles 

 occide7italis, D. & K. 



