139 



the rainy than the dry season. It is possible that moisture is favourable 

 to the transformation of the pupae and to oviposition, but further 

 observations are needed on this point. The life-history of C. rodhaini 

 is described. Two adults kept in captivity showed the presence of 

 the Protozoan Leptomonas in the rectum. The position taken up by 

 the larva in the skin of the host is perpendicular to the surface. In 

 man, a tumor does not form until three or four days after infection, 

 the larva reaching maturity in from 12 to 15 days. Cricetomys, 

 attacked by seven larvae, showed a considerable loss in weight, but 

 recovered as soon as the mature parasites emerged. According to 

 Roubaud, the partial immunity to attacks of ver du cayor (C. anlhro- 

 pophaga) which some animals enjoy is due to the body temperature ; 

 in the case of C. rodhaini it seems probable that the thickness of the 

 skin and the specific reactions of the tissues are important in deter- 

 mining whether a species is immune or not. 



de Bergevin (E.) & Sergent (E.). A propos de Thypoth^se de la 

 transmission du goitre end6mique par un insecte piqueur. 



[Concerning the hypothesis of the transmission of endemic goitre 

 by a biting insect.]— 5 wW. Soc. Path. Exot., Paris, ix, no. 6^ 

 14th June 1916, p. 345. 



The Reduviid, Acanihaspis sulcipes, F., occurs in certain regions in 

 central Africa in which goitre is endemic, but is absent from the districts 

 of Algeria in which goitre occurs. Representatives of an allied genus, 

 Holotrichius, are found in these districts, but are not known to attack 

 man. Ectomocoris ululans, Rossi, Reduvius mayeti, Put., Pirates 

 hybridus and P. strepitans, which are slightly further removed from 

 Acanthispis, are also present, and the first two are blood-sucking forms. 

 E. ululans is however rare and is found only in the desert regions where 

 goitre is not known. In Algeria, therefore, there is probably no 

 connection between blood-sucking Rhynchota and endemic, goitre. 



Rankin (Major A. C). Simple Tertian Malaria in French Flanders. — 



Lancet, London, no. 4839, 27th May 1916, pp. 1079-1080. 



Among the troops in France a considerable number of individuals 

 arrived with malarial parasites in their blood. In one examination 

 of men who had served in a malarious country, 93 showed the presence 

 of Plasmodimn vivax and four of P. malariae. A specimen of Anopheles 

 hifurcattis was taken in May and one of A. maculipennis early in June. 

 Shortly afterwards the latter species was found to be widely distributed 

 throughout the area. It was common in billets, barns, and outhouses, 

 and persisted until September. The sylvan species, A. hifurcatus, 

 was only met with occasionally. The possible spread of malaria 

 among the troops in Flanders was not seriously expected, as it was 

 thought that chmatic conditions would be against it, and only a few 

 cases did in fact occur. They prove, however, that A. maculipennis 

 in Flanders is capable of conveying a strain, or strains, of P. vivax, 

 tropical or sub-tropical in origin, under the conditions that obtained. 



