134 



Nyasaland, come to the following- couclusioiis : — The flies caught 

 near Kasu are infected with four species of pathogenic trypano- 

 somes — T. hrucei vel rliodiense, T. pecorum, T. simiae and T. 

 ctipi-de, the proportion of infected flies being 13'5 per 1,000. The 

 proportion of flies infected with T. hrucei vel rhodesiense, the 

 canse of human trypanosomiasis in Nyasaland, is 2 per 1,000. 

 The flies are infective all the year round and it is suggested that 

 to prevent the infection of tsetse-flies the experiment should be 

 tried of destroying all tlie wild game in the ' proclaimed area * of 

 Xvasaland. 



Fraxciiixi (G.). Sur un protozoaire nouveau parasite de Anopheles 

 iiuiculipennis. [On a new parasitic protozoon of AtiopJieles 

 inaculiveirnis.'] — C.R. hehd. Soc. de Biol., Paris, Ixxiv, 

 no. 21,'l-3th June 1913, pp. 119G-1198, 18 ii-^s. 



In the course of recent research work the author had occasion to 

 make numerous smears of ('view and Anopheles, and found a 

 protozoon parasitic in the alimentary tract of A. /nacul/pennis. 

 This parasite, Baecellia anophelis, g.n., sp. n., lias nothing in 

 common with any of the flagellates or Sporozoa hitherto met with 

 in Culicids, and its entire life-cycle seems to take place in the 

 alimentarv canal of its host. 



Laveean (A.) c^ Fkaxciiixi {(}.}. 7'rijp<!Jios(jni(t tolpue chez 

 Palaeopsijlla gracilis.- — C. R. hehd. Soc. de Biol., Pans, 

 Ixxiv, no. 22, '20th June 1913, pp. 1254-1256, 11 figs. 



An examination of fleas, all belonging to the species Falaeo- 

 psylla gracilis, found on moles, showed that a quarter of them 

 were infected with Tryjjanosoma talpae, and these flagellates 

 appearing in large and small forms resemble 7'. leicisi in the rat 

 flea. 



PoiiTcnixsKY(J. A.). OBKUlii ()1J0,V1> KH) VKlKJUb, CBOIICTIU, 



ciiocoi)!)! i;()Pi>r,i»i ii otuoiiikiiie eio Hh MEJoin.Ky. 



[Oestrus i)vis,lj.: its life-history and habits, the methods of 

 combating it and its relation to human beings.] TPNJb! lilOPO 

 UO DMTO.MOyorin y<ieiiaio HoMiiTOTa r.iaiiiiaro .ViipmuciiiH 

 l{eM.ic\('TpoiicTi5a u .'icM.ic.vkiiii [Memoirs of the Ikireau of 

 Entomology of the Scientific Committee of the Central Board 

 of Land Administration and Agriculture] x, no. 3, 63 pp. 

 :<:8 figs. St. Petersburg, 1913. 



In the first part of his paper the author deals with various 

 cases in wdiich human beings have been infested with the larvae 

 of Oestrus avis. In 1911 he received specimens of parasites taken 

 by Dr. Farmakovsky from the eyes of a patient in the district of 

 Samara, and he was able to satisfy himself that they were actually 

 the first-stage larvae of this flj'. A number of similar records are 

 cited which Dr. Portchinsky thinks are probably referable to 



