139 



Taylor (F. II.). Contributions to a Knowledge of Australian Culicidae, 



no. 4. — Proc. Linn. Soc. New South Wales for the Year 1918, Sydney, 

 xliii, part 4, 27th November 1918, pp. 826-843, 4 plates. [Received 

 23rd June 1919.] 



This is a continuation of a previous paper [see this Review, Ser. A, 

 V, p. 67]. The following new species are among those described ; 

 Pseudoshusea cairnsensis from Queensland ; Mimeteomyia doddi from 

 Papua ; Culicada ivilsoni from Victoria ; Lophoceratomyia cairnsensis 

 from Queensland ; Uranotaenia tibialis and U. antennalis from Queens- 

 land ; and U. hilli from the Northern Territory. 



A key is given to the Australian species of Anopfieles, Bironella 

 gracilis, Theo., being treated as a representative of a distinct genus. 



Hornby (H. E.). The Diagnosis of African Equine Trypanosomiasis. 



— Vet. Jl., London, Ixxv, no. 6, June 1919, pp. 218-225. 



Trypanosoma brncei, T. congolense and T. vivax are the three species 

 responsible for equine trypanosomiasis. The disease caused by 

 T. brucei only differs in that it generally follows a rapid course, whereas 

 that caused by T. congolense and T. vivax is more frequently chronic. 

 All three are fatal. 



The author's method of diagnosis is given, with tables showing the 

 effects of infection by the different trypanosomes. 



Battaglia (M. I.) & Barbara (B.). Tifus exantematico. Contribucidn 

 al Estudio de la Epidemiologia argentina. — Anales Dept. Nac. 

 Higiene, Buenos Aires, xxv, no. 1, January-February 1919, 

 pp. 3-46. [Received 23rd June 1919.] 



The history of previous epidemics of exanthematic typhus in South 

 America is reviewed. It is known that the disease is transmitted by 

 lice and that it only occurs within certain degrees of temperature ; 

 in Europe cases are known during winter and spring ; in Mexico the 

 disease only occurs at certain elevations. The present paper reports 

 upon an epidemic in Argentina which was investigated in July 1918, 

 when it was found that spotted typhus had been endemic for years in 

 the region inspected, which is situated on the river Luracatan, beneath 

 the first ranges of the Andes. Pediculosis is general in this region, 

 and typhus has occurred with more or less regularity in past years, 

 most of the families there having lost some member from this disease. 

 From the end of March to the middle of August 17 deaths occurred 

 from the malady and 11.5 cases of illness, the inhabitants declaring 

 that the mortality was no higher than usual, though the amount of 

 sickness was exceptional. While it is remarkable that such a con- 

 tagious infection should have persisted unnoticed and remained 

 localised in the same region for a number of years, the explanation 

 probably lies in the isolation of the towns concerned, which have 

 very little communication with other parts, in the topography and 

 climate, and in the absence of any medical authority or persons 

 capable of diagnosing the disease. The present epidemic is considered 

 to have been a recrudescence caused by an unusually cold season, 

 resulting in greater crowding and contact among the very primitive 

 population, lack of personal cleanliness, etc. 



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