30 



Hegh (E.). Notice sur les Glossines ou Ts6ts6s. [A short account of 

 Tsetse-Flies.] — Published by Hutchinson and Co., London, for 

 the Ministry of the Belgian Congo. [1915]. 148 pp., 29 figs. 



This is a useful and well compiled resume of the work already 

 published on tsetse-flies, and is intended for the use of officials in the 

 Belgian Congo. The study of these flies is a matter of extreme 

 importance and the discovery of an effective means of combating 

 them would be invaluable to that country. Following Austen's 

 classification, the genus is divided into four sections : — (1) Glossina 

 palpalis group ; (2) G. morsitans group ; (3) G. fusca group ; and 

 (4) G. brevipalpis group, and the distribution of the members of these 

 groups is given. The method of reproduction is described, and an 

 account given of the different stages in the life-history. The dis- 

 tribution of G. morsitans and G. palpalis in the Belgian Congo is given 

 in detail. In feeding experiments with tsetse-flies it has been shown 

 that food consisting of mammalian blood is more favourable for 

 reproduction than that of birds. In considering the relation between 

 tsetse-flies and wild game, it is stated that the present evidence 

 of the habits and distribution of the flies and those of big game 

 tends to show that the latter are not indispensable for the main- 

 tenance of the insects. In discussing the means of control of the flies, 

 the following factors are considered :■ — (1) the action of external 

 agents (heat, cold, humidity, etc.) ; (2) the methods of limitation 

 and destruction (predaceous and parasitic enemies, prophylactic 

 measures, capture of adults, etc.). The pamphlet concludes with an 

 account of the best methods of collection, preservation and breeding 

 of the flies. 



LuTZ (A.) & Machado (A.). Viajem pelo rio S. Francisco e por alguns 

 3 dos seus afluentes entre Pirapora e Joazeiro. [A journey on the 



S. Francisco River and on some of its tributaries between 

 Pirapora and Joazeiro.] — Mem. Inst. Oswaldo Cruz, Rio de Janeiro, 

 vii, no. 1, 1915, pp. 5-50, 18 plates. [Received 20th December 

 1915.] 



This journey through the States of Bahia and Minas Geraes (Brazil) 

 began in April, when the dry weather was already well-established, 

 and lasted up to mid-July. With one or two exceptions, there was 

 no rain during that period. 



The following is a list of the blood-sucking Diptera collected : — 

 SiMUUiDAE : Simidium amazonicuni, Goeldi, S. brevibranckium, 

 sp. n., S. diver sifurcatum, Lutz, S. incrustatum, Lutz, S. orbitale, Lutz, 

 S. paraguayense, Lutz, S. pruinosuni, Lutz, S. rubriilioiax, Lutz, 

 S. sjyinibranchium, Lutz, and S. subviride, Lutz. Ceratopogoninae : 

 Culicoides debilipalpis, Lutz, C. guttatus, Coq., C. paraensis, Goeldi, 

 Coiocripus stylifer, Lutz, and C. pusillus, Lutz. Psychodidae: 

 Phlebotomus intermedins, Lutz. Tabanidae : Diachhrus bimacidatus, 

 Wied., D. immaculatus, Wied., Chrysops luetus, F., C. molestus, Wied., 

 Erephopsis pubescens, Lutz, E. pygmaea, sp. n., E. scionoides, sp. n., 

 E. xanthopogon, Wied., Selasoma tibiale, F., Cryptotylus unicolor, Wied., 

 Tabanus miles, AVied., Neotabanus comitans, Wied., N. ochrophilus, 

 Lutz, and N. triangidum, Wied. The mosquito fauna observed during 

 the journey was poor compared Avith that in the neighbourhood of 



