13 



Glossina exist. The author has proved from observations made at 

 Zambi, Lower Congo, that the trvpanosome there present, to which he 

 has given the name T. cazalboui var. pigritia, is transmitted by flies 

 other than Glossina. He has observed cases of trypanosomiasis due 

 to T. mzalboui var. pigritia in herds of cattle confined to high open 

 land, far from a river, in districts where he is convinced that no Glossirut- 

 exists. Among these the earliest cases always appeared towards 

 November and no outbreak occurred after May. As the dangerous 

 period coincided with the rainy season, it was thought possible that 

 Glossina might be present temporarily during the rains, but minute 

 search demonstrated the impossibility of this. Certain herds were 

 observed to remain immune, whilst in others every animal was infected, 

 and observations led to the conclusion that the infected herds were 

 those which grazed near a papyrus swamp. The following couchisions 

 were arrived at. The first cases of trypanosomiasis coincided with the 

 appearance of a new species of Haemaiopota, H. perturbans, Edw. [see 

 this Review, Ser. B, v, p. 2]. The spots where H. perturhans abounds, 

 such as papyrus swamps, are dangerous to cattle and this fly does not 

 occur where the cattle. remain healthy. Examples of H. perturbans, 

 captured on animals infected with T. cazalboui var. jngritia, were found 

 to contain living trypanosomes in the gut. The chief reservoir of this 

 trypanosome appears to be the infected cattle themselves, though 

 certain wild animals may also be concerned in this. Examination of 

 the blood of some antelopes, Cobus ellipsiprymnus, TragelajjJms gratus, 

 T. scriptus and Cervicapra arundinum however proved negative, but 

 further investigation of this point will be continued. The author does 

 not claim that H. perturbans is solely concerned in transmitting this 

 trypanosome ; in his opinion, Stomoxys, Lyperosia, probably mos- 

 quitos and even certain ticks may also play this role. 



Langeron (M.). Les Phl6botomes dans la Region parisienne. [PJikbo- 



tonms in the Neighbourhood of Paris.] — Bidl. Soc. Path. ExoL, 



Paris, ix, no. 8, 11th October 1916, pp. 573-576. 



On two occasions, in 1914 and again in 1916, the author has captured 



female specimens of Phlebotomus pa.patasii in the district south of Paris, 



at Bourg-la-Reine. The hibernation of this species is an interesting 



problem and the greater part of the year must be spent in the larval or 



nymphal stage in this region. 



Urbain (Ct.). Un Cas de Gale D6modectique du Cheval. Contagion a 

 THomme. [A Case of Demodex Infestation of the Horse. Conta- 

 gion to Man.] — Bull. Soc. Path. Exot., Paris, ix, no. 8, 11th October 

 1916, pp. 576-578. 

 A case is recorded from Brazil in which a man in charge of horses 



infested with Demodex himself became attacked in the face by this 



parasite. The question as to whether D. folliculorum occurring in the 



dog is contagious is considered as yet unproven. 



JoYEUx (Ch.). Sur le cycle Evolutif de quelques Cestodes. [On the 

 Life-cycle of some Cestodes.] - -SwiL Soc. Path. Exot., Paris, ix, 

 no. 8, 11th October 1916, pp. 578-583. 

 The tape- worm, Dipylidium caninum, L., has for its intermediate 



hosts the louse, Trichodectes canis, Retz., and two fleas, Ctenocephalus 



