103 



there is not only insufficient evidence to incriminate flies of the genus 

 Simulium, but much evidence directly opposed to such incrimination, 

 while the biting stable-fly, Stomoxys calcUrans, shows in a marked 

 degree those characteristics of distribution, habit and association with 

 man, which would pre-eminently fit it to be the vector of pellagra, if 

 transmission of the disease by a blood-sucking insect is shown to be 

 possible. If pellagra be found to be an intestinal disease of bacterial 

 origin, house-flies and others of similar habits will in all probability 

 be found to be an active factor in its causation. 



Todd (J. L.). Tick Paralysis. — Jl. of Parasitology, Urbana, i, no. 2, 

 December 1914. pp. 55-64. 

 Details are given of several cases of tick paralysis recently reported 

 from British Columbia and Montana [see this Review, Ser. B, iii, p. 6.] 

 A series of experiments was made with the object of producing paralysis 

 in laboratory animals by the bites of Dermacentor venustus. Three 

 monkeys, seven lambs, a guinea-pig and three puppies were employed. 

 In many cases the ticks became engorged, but paralysis never ensued, 

 in spite of the fact that some of them had been taken from cases of 

 the disease. Negative results were also obtained when ticks were 

 ground up in a solution of glycerine or normal saline and a filtrate of 

 the mixture was introduced into rats and a lamb. It is concluded 

 that, under experimental conditions, by no means every tick bite 

 produces paralysis in laboratory animals and that a weak extract 

 of ticks will not cause paralysis when injected into white rats, even 

 though it possesses definite power to prevent the coagulation of blood. 



Lama (A.). Contribute alia Epidemiologia della Lebbra. [A Contribu- 

 tion to the Epidemiology of Leprosy.] — Giorn. Ital. Mai. Veti., 

 Milan, xhx, 1914, pp. 465-472. 

 The author believes that Dermatophyllus (Sarcopsylla) penetrans (the 

 chigger) frequently carries leprosy and points out that the early lesions 

 in leprosy usually appear in the uncovered parts of the body. The 

 attack of the flea usually irritates the lymphatics in its neighbourhood, 

 and this pest also attacks rats. 



Fox (C). A Further Report on the Identification of some Siphonaptera 



from the Philippine Islands. — Treasury Dept. U.S. Public Health 



Service, Washington, D.C., Hygienic Laboratory Bull. no. 97, 



October 1914, p. 18. 



The author confirms his previous observations regarding Xenopsylla 



cheopis and Ctenocepihalus canis, namely that the former is the only 



rat flea found in the Philippines, from which C. canis appears to be 



absent. An earlier statement that C.felis, Bouche, of the Philippines 



differed from that of the United States and Europe is corrected. 



Glaser (H.). BestimmungsschlUssel der in Kamerun und Togo 

 bekannten Tsetsearten. [Key to the Species of Tsetse in Kamerun 

 and Togo.] — Arch. f. Schiffs- u. Trap. Hyg., Leipzig, xviii, 

 no. 16, August 1914, pp. 571-573. 



This paper is based on the collection of flies in the Zoological Museum 



