40 



argument that the absence of G. morsitans in the third (eastern) section 

 is due to the diminution of game owing to the exploitation of the 

 railway and the passage of troops, is not a sound one, as the presence 

 of men in greater numbers would have the same effect, but is n. re 

 probably the result of the artificial clearing of the banks of the railway 

 and of the thinning of trees in its vicinity. 



Turner (R. E.). On a Braconid Parasite of Glossinu.—Bull. Entom., 

 Research, London, viii, no. 2, December 1917, p. 177. 



This paper describes Coelalysia glossinopJiaga, sp. n., a Braconid bred 

 from pupae of Glossina in the Gold Coast. 



Waterston (J.). Chalcidoidea bred from Glossina in the Northern 

 Territories, Gold Coast. — Bull. Entom., Research, London, viii, 

 no. 2, December 1917, pp. 178-179, 1 fig. 



The species dealt with in this paper are Dirhinus inflexus, sp. n., of 

 which a preliminary description is given, and Chalcis amenocles, Wal]^., 

 both having been bred from puparia of Glossina in the Gold Coast. 

 The former is closely related to Dirhinus g iff ordi, Silv., and D. ehrhorni, 

 Silv., both of which have been described from Southern Nigeria, where 

 they attack fruit flies of the genus Ceratitis. 



Verney (L.). LaDiffusione della Risicultura sotto i Riguardi igienici. 



[The Spread of Rice Cultivation from a Hygienic Standpoint.] — 

 Annali d'lgiene, Rome, xxvii, no. 11, 30th November 1917, 

 pp. 700-719. 



Rice cultivation is not necessarily productive of malaria, provided 

 that the fields are not permanently flooded. In South Carolina, for 

 instance, water is admitted only at certain periods and the conditions 

 are far healthier than in regions where Anophelines are able to breed 

 undisturbed. 



Hewitt (C. G.). Report of the Dominion Entomologist for the Year 

 ending 31st March 1917.' — Dominion of Canada, Dept. Agric, 

 Ottawa, 1917, pp. 15-16. [Received 29th December 1917.] 



Gastrophilus haemorrhoidalis (red-tailed bot-fly) and G. nasalis (nose- 

 fly) are apparently increasing in the prairie provinces ; their distribu- 

 tion is being studied. Hypoderma lineatnm and H. bovis are also 

 spreading gradually, chiefly owing to the introduction of cattle from 

 infested regions. The tick, Dermacentor albipictus, has in many cases 

 caused the death of moose in Saskatchewan. 



Sodium fluoride is considered a very promising insecticide in the 

 control of household insects ; it has previously proved valuable where 

 cockroaches are concerned, and has recently been used with success in 

 the control of the ants, Camponotus pennsijlvanicus and Crematogaster 

 lineolata, when infesting houses. 



In the military training camps of the Canadian Expeditionary Forces 

 visits have been made and lectures given to the medical officers and 

 sanitary units on the question of the suppression of insects affecting the 

 health of troops in camp and at the front. 



