172 



Compulsory dipping of all cattle over a large area round the infected 

 centre was enforced and the necessary dipping tanks were erected. 

 Tick-infested cattle were found in the Gwelo district and three-day 

 dipping was instituted there. During June the remaining cattle on 

 the infected farm in the Mazoe district were destroyed. In the Mrewa 

 district cattle removed from infected to clean ground remained healthy ; 

 the dipping interval was extended from three to five days. The 

 existence of African coast fever was demonstrated in the Gwelo district. 



Christophers (S. R.). A New Anopheline with Unspotted Wings from 

 Mesopotamia {Anopheles lukisi). — Ind. JJ. Med. Research, 

 Calcutta, iv, no. 1, July 1916, pp. 120-122. [Received 12th 

 September 1916.] 



Anopheles luJcisi, sp. n., obtained together with A. sinensis var. 

 tnesopotamiae from Amara, is described. Both these species were found 

 to bite during the evening. 



Aw ATI (P. R.). studies in Flies, Contributions to the Study of Specific 



X . Differences in the Genus Musca. 2. — Structures other than 



Genitalia. — Ind. Jl. Med. Research, Calcutta, iv, no. 1, July 1916, 



pp. 123-139, 10 figs., 2 tables. [Received 12th September 1916.] 



The generic characters of the genus Musca are described. The 

 following characters, in addition to the genitalia, have been found 

 of value in specific identification : — Chaetotaxy, differences in the 

 ground colour of the abdomen, in the arrangement of the shimmering 

 areas on the abdomen and of the thoracic stripes, variations in 

 the fifth sternite of the female, the presence or absence of spines 

 beyond the anterior ci^oss vein, the number of spines on the hmneral 

 vein, and the position of the fovae of the antennae. A key to the 

 identification of the species of the genus, based on these characters, is 

 given. 



Gill (C. A.). Malaria in Muscat. — Ind. Jl. Med. Research, Calcutta, 

 iv, no. 1, July 1916, pp. 190-235, 4 plates, 1 chart, 2 maps, 

 10 tables. [Received 12th September 1916.] 



The investigations here recorded were confined to a very limited area 

 in and around Muscat. Mosquito breeding places in the immediate 

 vicinity of the camp were extremely Umited, owing to the scarcity of 

 vegetation and the absence of a native village. Rain water w^as how- 

 ever able to collect and remain in depressions in the surrounding 

 volcanic rocks. During 1915, owing to the shght rainfall, these pools 

 dried up almost entirely, and thus further reduced the number of 

 breeding places. Wild animals included a few Arabian gazelles, hares 

 and foxes ; domestic animals included camels, donkeys and cattle. 

 Rats were abundant and troublesome. The insect fauna included 

 house-flies, Stonioxys calcitrans, especially in November and December, 

 blue-bottles, Phlebotonius sp., and a bug, Triatoma (Conorhinus) sp., 

 as well as the following Anophelines : — Anopheles {Myzornyia) culi- 

 cifacies, Giles ; A. {Neocellia) stephensi, Liston ; A. (M.) rhodesiensis, 



