220 



species of Stegomyia which occur at Pusa (these do not iuclude 

 S. fasciata) eggs laid in the cool weather do not hatch until the 

 following rains, lying in earth and dried mud throughout the 

 whole of the dry season and the author thinks that in those 

 places which have a well marked cold or dry season the same 

 thing will probably happen in the case of Stefjoin.yia fasciata. 



Patton (W. S.). Further observations on the Development of 



ilerpetonionas donovani in Cime.x rotundatus and Cimex lectu- 



Y larius. — Proceedings of the Third Meeting of the General 



Malaria Committee held at Madras, 18th-20th. Nov. 1912, 



Simla, 1918, pp. 221-232. 



The author refers to his previous work whi(.li he regards as 

 proving that the parasite is capable of carrying its development 

 in the bed-bug to the post-flagellate stage, provided that, during 

 the course of tliis development, the insects do not take a second 

 meal of blood. A large number of experiments were made at 

 temperatures suital)le for tlie development of the parasites, and the 

 author arrives at the following conclusions : — 



(1) The parasite of Indian kala-azar will flagellate in the bug" 

 at a high temperature, but instead of multiplying, it dies out 

 and disajxpears in about five days after it is ingested; (2) the 

 parasite will also flagclhite in tlie bug at a low temperature, and 

 though it persists in th(; insect for about twelve days after it is 

 ingested, it never multiplies to any extent, bui dies out; (3) the 

 parasite flagellates and persists for a few^ days in bugs kept at a 

 temperature varying from 73° F. to 8(P P., but here again it never 

 multiplies but dies out. 



The t(!niperature corresponding with that of the months of 

 December and -January in Madras appears to be the most suitable 

 for its development in the bug ; it is then able to pass on to its post- 

 flagellate stage. Tt is, the author thinks, a very striking fact that 

 the parasite of Oriental Sore in Cambay behaves in a still more 

 peculiar way, in that it will only flagellate in the bug below a 

 temperature of about 75° P. The parasite of kala-azar, on the 

 other liand, will flagellate in the bug at a high temperature, but 

 fails to muli iply and soon disappears. 



Beqxtaeut (J.). Muscides Hematophages et Culicides. [Blood- 

 sucking Muscids and Culicids.] — Revue Zool. Africaine, 

 Brussels, Vol. III., Pasc. 1, 1913, pp. 12-23. 



In this paper a list is given of the blood-sucking Muscidak and 

 mosquitos found during the scientific mission to Katanga, in the 

 Belgian Congo, with a short reference to the habits of the insects. 

 The MusciDAE are represented by: — Stomoxys calcitrans var. 

 korogirensis, S. hrunnipes, S. taeniatus, S. houvieri, Glossina 

 palpalis, (j . morsitans, G. pallidipes, and G. hrevipalpis. The 

 CuLiciDAE comprise: — Toxorhynchites hrevipalpis. Anopheles 

 funestus, A. costalis,.A. wellcomei, Mucidus mucidus, Stegomyia 

 simpsoni, S. apicoargentea, Culex gniarti, C. duttoni, C. ager, 

 OcJilerofatus cnmiiiiiisii, 0. minutus, Mansonioides n/iifor/nis, and 

 Banhsinella luteolateralis. The author also obtained an undeter- 

 mined species of Cuhcoides and of Simulium. 



