41 



in this method. In the case of 0. tarandi, a better method is to kill 

 the larvae ; this can be done by rubbing tar on the warbles, and thus 

 suffocating them. 



Hatori (J.). [" Tsutsugamushi " Disease in Formosa (5th communi- 

 cation).] — ■Taiwan I^akkai Zasshi [JI. of Formosa Med. Soc.]. 

 no. 209, 28th March' 1920, pp. 317-352. (Abstract in Trop. Dis. 

 Bull, London, xvi, no. 6, 15th December 1920, pp. 416-417.) 



A mite, the larva of which cannot be fed on the blood of man, 

 monkey and mouse, but is a parasite of a bird, Centropns javanicus, is 

 referred to the author's Trombidiiim {Trombicida) pscudo-akamitshi , 

 which is distinct from though closely allied to T. mediocris, Berl. 



Two new avian mites are described : Trombicnla (?) gallinariim, of 

 which only the larva is known and which is chiefly parasitic on 

 chickens, but also occurs on Caprimnlgiis monticola and Corvus 

 macrorhynchus ; and Trombicida corvi, from a larva found on Corvus 

 macrorhynchns. 



In the districts where tsutsugamushi disease is known to occur, 

 T. akamiishihd.s been found on various mice, rats and shrews. Dogs 

 and cats are also attacked, and the buffalo carries this mite. Bird 

 hosts include chickens, Phasianus formosanus and Tiirnix taigoon. 



Kawamura (R.) & Yamaguchi (M). Ueber die Tsutsugamushi- 

 Krankheit in Formosa, zugleich eine vergleichende Studie derselben 

 mit der in Nordjapan. [Notes on the Tsutsugamushi Disease in 

 Formosa, and also a Comparison of it with that found in North 

 Japan.] — Kitamto Arch. Exptl. Med., Tokyo, iv, no. 3, 1921, 

 pp. 169-206. 8 plates, 5 charts, 5 tables. 



The organism causing tsutsugamushi disease appears to be the same 

 in Formosa as in Japan, but possesses less virulence in the former 

 island, fatal cases being rare. The mite transmitting it, Trombidiiim 

 {Trombicida) akamushi, Brumpt, was taken from Mus alexandriniis, , 

 M. decumanus, Apodemus semotus, Apodemns sp., dogs, cats, monkeys, 

 buffalos, fowls, and quails. In many districts the mites were found in 

 the earth. Morphological notes and figures are given on T. akamushi 

 and on allied species [sec preceding paper and R. A.E., B, viii, 37]. 



Scott (J. W.). Parasitology Department. — 30th Ann. Repf. Wyoming 

 Agric. Expt. Sta., 1919-1920, Laramie, 1920, pp. 133-138. 

 [Received 9th December 1921.] 



As Tabanus septcntrionalis is capable of transmitting swamp fever, 

 experiments in injecting extracts of the bodies of these flies were made 

 to determine if they contained a toxin capable of producing a similar 

 disease, but the results were negative. Two apparently spontaneous 

 cases of swamp fever occurred amongst experimental horses that had 

 been passed as sound when bought, perhaps showing that it is im- 

 possible to detect chronic cases by ordinary means. No horses should 

 be bought from ranches where fever has occurred in recent years, and 

 diseased animals should be isolated. Experiments proving that the 

 virus of swamp fe\'er occurs in the nasal secretion of infected horses 

 are described. 



(5610) D 



