214 



to true immunity. Pigs seem to be the least influenced of all animals 

 by the presence of Glossina, but unfortunately they are but little reared, 

 owing to Mohammedan prejudices. 



It is obvious that it is on the study and careful selection and dis- 

 tribution of the small, resistant races described above that the future 

 of the cattle-raising industry in tropical and equatorial Africa depends. 



Urich (F. W.), Scott (H.) & Waterston (J.). Note on the Dipterous 

 Bat-parasite, Cydopodia greeffl, Karsch, and on a new Species of 

 Hymenopterous (Chalcid) Parasite bred from it. — Proc. Zool. Soc, 

 London, 1922, pt. 2, June 1922, pp. 471-477, 1 fig. 



In the introductory remarks by Dr. Scott the existing literature 

 on the occurrence of the bat parasite, Cydopodia greeffi, Karsch, is 

 reviewed It was taken by Mr. Urich in 1920 in San Thome on the 

 fruit-eating bat {Eidolon helvum), and numerous puparia were found 

 on the leaves of the trees where the bats were roosting. Neither 

 larvae nor puparia were found on the animals. Newly emerged 

 adults died after 48 hours, having unsuccessfully attempted to feed 

 when placed on rabbits. 



A Hymenopterous parasite bred from two puparia is described 

 by Dr. Waterston as Eupelmus uridii, sp. n. 



HiLDEBRAND (S. F.). Top Minnows in Relation to Malaria Control, 

 with Notes on their Habits and Distribution.— U.S. Public Health 

 Service, Washington, D.C., Pubhc Health Bull. 114, May 1921, 

 34 pp., 32 figs. [Received 8th September 1922.] 



The fish dealt with are Gambusia affvnis, Heterandria formosa, 

 Ftmdtdus notti, F. notatus and Mollienesia' latipinna. With the 

 exception of the last named, all these are of more or less value in 

 eradicating mosquito larvae and pupae in the southern United States. 

 The use of Gambusia affinis during anti-malaria campaigns in 1920 

 reduced the cost and added greatly to the permanent nature of the 

 work. An account is given of the distribution and habits of this fish 

 [cf. R.A.E., B, vii, 162 ; ix, 163]. In the case of G. affinis, new broods 

 consisting of any number up to 200 are produced at intervals of 

 3 to 6 weeks throughout the breeding season, which varies according 

 to the' duration of the warm weather. 



Owing to the limited observations made on H. formosa no definite 

 information has been obtained regarding its relative value as an agent 

 for the control of malaria, though it appears to be a serious enemy of 

 immature mosquitos. 



The two species of Funduhis are probably of very limited importance ; 

 they are nowhere found abundantly, and would seem to be difficult 

 to propagate in large numbers, so that it is extremely doubtful 

 whether it would be practicable to use them except under very restricted 

 conditions. 



Veenendaal ( — ). A propos de la Gale auriculaire du Chien et du 

 Chat. — Tijdschrift voor Veeartsenijkiinde, 1st April 1922, p. 252. 

 (Abstract in Ann. Med. Vet., Brussels, Ixvii, no. 8-9, August- 

 September 1922, pp. 379-384.) 



A general account of auricular mange in dogs and cats is given, the 

 Sarcoptid mite that causes it being found almost invariably in the 

 external auditory meatus and on the internal surface of the ear itself. 



