33 



Bodkin (G. E). Some recent Entomological Surveys bearing on 

 Malarial Incidence in British Guiana. — //. Bd. Agric. British 

 Guicma, Demerara, xiv, no. 4, October 1921, pp. 226-229. 



Surveys of a number of sugar estates have recently been made with 

 special reference to the breeding-places of Anopheline mosquitos. 

 The methods employed are described. Only Anopheles tarsimaculatus, 

 Goeldi, was found, and this appears to be the prevalent species through- 

 out the coast lands of British Guiana. It invariably breeds in shallow% 

 grass-grown drains, well shaded from the direct rays of the sun. The 

 author has only found the larvae in comparatively clear, fresh water. 

 On everj^ estate so far examined, breeding occurs in close proximity 

 to the inhabited portions. 



In the Potaro district, which is some distance from the coast, and 

 where malaria is se\'ere, ^4. tarsimaculatus was not found, the pre- 

 dominant x\nopheline being A. argyritarsis, R.D. 



Bodkin (G. E.). The Mosquitoes of British Guiana.— J/. Bd. Agric. 

 British Guiana, Demerara, xiv, no. 4, October 1921, pp. 251-261. 



This condensed list of 54 mosquitos from British Guiana is practically 

 a revision of previously published ones. 



Bodkin (G. E.). Report on Malarial Mosquitoes in the Potaro District. 



— //. Bd. Agric. British Guiana, Demerara, xiv, no. 4, October 

 1921, pp. 262-265. 



Anopheles argyritarsis, R.D., is the prevalent mosquito in the 

 Potaro district. It breeds in old tins and other receptacles in which, 

 owing to the rainfall, a constant supply of fresh water is available. 

 It was also found breeding in a clear stream much overgrown with 

 grass. Larvae of Aedes argenteus, Poiret, and Culex faiigans, Wied. 

 [quinquefasciatiis, Say) were found in abundance in rain.-water con- 

 tainers. Other species recorded include Sabethoides nitidus, Theo., 

 Limatus durhami, Theo., and Uranotaenia geometrica, Theo. 



MiNETT (E. p.). Agriculture versus Malaria. — //. Bd. Agric. British 

 Guiana, Demerara, xiv, no. 4, October 1921, pp. 289-291. 



The value of agriculture and sanitation as means of reducing malaria 

 by destroying the breeding grounds of mosquitos is emphasised. The 

 methods of reclaiming swamps and other land unsuitable for cul- 

 tivation practised in Egypt and Trinidad are described, and their 

 adoption in British Guiana is urged. 



Keilin (D.). On some Dipterous Larvae infesting the Branchial 

 Chambers of Land-crabs. — Ann. & Mag. Nat. Hist., London, 

 viii, no. 48, December 1921, pp. 601-608,^8 figs. 



The two species of Dipterous larvae here recorded were found in 

 the branchial chambers of the land-crabs Cardiosoma hirtipes, from the 

 Admiralty Islands, and Gecarcoidea lalandii, from Christmas Island, 

 respectively. They probably belong to the Eph ydridae or at least to a 

 very closely allied family. It is doubtful whether these larvae are 

 parasitic. They are, to some extent at least, saprophagous, and they 



