67 



A. barbirostris, susceptibility feeble; relatively wild; very low' 

 avidity for blood ; widely distributed, but scattered ; not an important 

 carrier. 



A. rossii, susceptibility to infection low; most domestic of the 

 Anophelines ; avidity for blood high ; widely distributed and relatively 

 prevalent ; possibly plays an important part in the dissemination of 

 malaria. 



A. minimus [febrifer) very susceptible ; both wild and domestic ; 

 avidity for blood high ; widely distributed and the most important 

 mosquito concerned in the epidemiology of malaria in the Philippine 

 Islands. 



A list of works cited in the text concludes this paper, which 

 contains a mass of minute and careful experimental detail to be 

 consulted in the original by all who are interested in the subject. 



Knab (F.). a New Cuterebra from Panama. — Insecutor Inscitiae 

 Menstruus, Washington, D.C., ii, no. 12, December 1914, pp. 187- 

 188. [Received April 1915.] 



Cuterebra maculosa, sp. n., is described from Panama, the host of 

 this parasitic fly being probably one of the rodents in this region. 



Knab (F.). New Data and Species in Simuliidae. — Insecutor Inscitiae 

 Menstruus, Washington, D.C., ii, no. 12, December 1914, 

 pp. 177-180. 



Descriptions and systematic notes are given of the following 

 Simuliidae : Simulium jyulverulentum, sp. n., British Honduras ; 

 S. rubicimdulum, sp. n., Mexico ; S. trivittatum, Malloch, stated 

 to be synonymous with S. distinctum, from Brazil. The genus 

 Parasimidium is stated to have been erroneously founded on a male 

 •of P. furcatum. Mall., which was described as a female specimen. 



Hearse Y (H.). Nyasaland Sleeping Sickness Diary, Zoiuba, pt. xxiv, 

 31st December 1914, 10 pp. [Received 17th March 1915]. 



Nineteen cases of sleeping sickness have been notified since the 

 publication of the last memorandum, bringing the number of cases 

 recorded up to the present to 211. 



Of these nineteen cases, eight were discovered in the Sleeping Sickness 

 Area of the Dowa district, nine in the Marimba district, one in the 

 Dedza, and one in the South Nyasa district. Of the nine cases recorded 

 in the Marimba district, eight were found on the Lake border, and 

 one was notified from the fly area in the north-western section of 

 this district. 



The Medical Officer of the Proclaimed Area of the Dowa district, 

 Dr. Conran, states that : — The headman and inhabitants of each 

 village in the S.S. Area have been encouraged by every means short 

 of compulsion to continue the work of clearing trees and scrub from 

 the neighbourhood. As a result there is now a cleared area of varying 

 ■extent round every village in the fly area. In some cases these are 

 not of sufiicient radius to have any very marked effect on the presence 



(C151) A 2 



