132 



(Choeroporpa) pose, D. & K., the male of which is described from 

 Louisiana ; C. {Isostomyia) bifoliata, sp. n., males of which were bred 

 from larvae found in a hole in a plum tree in Panama ; Wyeomyia 

 modalma, sp. n., from Panama ; W. {Shropshirea) ypsipola, sp. n., 

 bred from larvae found in a tree hole at Comacho ; and Goeldia 

 paranensis, Brethes, of which further material has now been examined 

 [R.A.E.,B,x,9Q]. 



Padwick (H. B.). Some Notes on Early Attempts at Prophylaxis 

 against "Coast Fevers" on the West Africa Station.—//. R.N. 

 Med. Service, London, viii, no. 2, April 1922, pp. 89-98, 4 diagrams. 



The author records from some journals found in his ship notes 

 on the difficulties experienced by former medical officers on the West 

 African station in dealing with mosquito-borne diseases from about the 

 middle of the last century. 



An efficient mosquito net for use with hammocks on ships is described 

 and iUustrated. Owing to the proper use of this net the malaria on 

 the author's ship has been reduced from 89 and 42 cases during two 

 recent commissions to four cases only. 



Tsetse Fly Studies. — //. Dept. Agric. Union S. Africa, Pretoria, iv, 

 no. 4, April 1922, pp. 303-304. 



Extracts are given from a report of Mr. R. H. Harris on Glossina 

 pallidipes in Zululand. The twelve breeding-places discovered are all 

 closely associated with small pans or drinking-places, with a low- 

 growing, unidentified bush, and with shady places where game stand 

 after drinking. The soil was dry, sandy loam, rich in humus. No 

 pupae were found under logs or in tree-trunks or between forked roots, 

 such as G. niorsitans prefers. Major forest shade is not essential to 

 G. pallidipes. In all these breeding-places the water in the adjacent 

 pan had dried up and only empty puparia were found, except in one 

 place where a large puparium that resembled that of G. hrevipalpis 

 was discovered. It is thought that the game, which come regularly to 

 water, are the source of food supply to a certain number of females. 



It is considered that were it possible to burn vast tracts of country 

 simultaneously the numbers of the fly would be reduced, as it is unable 

 to travel in the great heat of the sun. It has already been demonstrated 

 that the males cannot live longer than three days without food, and the 

 females die very readily in the heat. The burning experiment would 

 have to be continued over several years. It is also considered that the 

 game will have to be reduced to a point when it ceases to provide 

 food for large numbers of flies, and attention can then be concentrated 

 on the limited breeding-places of the fly that would result. 



Martini (E.). Ueber ein gutes Unterscheidungsmerkmal von A. 



plumbeus und A. bifurcatus. [On a good differentiating Character 

 between A. plumbeus and A. bifurcatus.'] — Arch. Schiffs- u. 

 Trop.-Hyg., Leipsic, xxv, no. 12, December 1921, pp. 364-365. 



Owing to a misunderstanding of the formula used, a mistake was 

 made in a recent notice of this paper [7^. A.E., B, x, 76]. The essential 

 character differentiating the palpal joints in the females of Anopheles 

 bifurcatus and A. plumbeus is that in the former the fifth joint is less 

 than half as long as the fourth, whereas in A . plumbeus it is more than 

 half as long. 



