INSECTS INJURIOUS TO MAN AND STOCK IN ZANZIBAR. 401 



Order MALLOPHAGA. 

 Philopteridae, 

 Nirmus varius, N. From a crow {Corvus splendem). 



LlOTHEIDAE. 



CoJpocephalum subaequale, N. From a crow {Corvus splemle)is). 

 Laemobothrmm titan, Piaget. From a kite {Milviis aegijptius). 



Order ACAKINA. 



IXODIDAE. 



Rhipicephalus appendiculatus, Neum. The commonest species on cattle ; un- 

 doubtedly the carrier of African coast fever. 



Rhipicephalus simus, Koch, Taken on cattle and donkeys. 



Rhipicephalus sanguineus, Latr. Very common on dogs, 



Rhipicephalus evertsi, Neum. Common on cattle, goats and sheep. Generally 

 found around the anus or in the ears. 



Rhipicephalus pulchellus, Gerst. A rare form in Zanzibar. Numbers can be found 

 on cattle imported from the Somali Coast, including replete females. This tick, 

 probably owing to climatic conditions, has been unable to acclimatise itself on the 

 Island ; no specimens have been obtained from local stock. 



Rhipicephalus maculatus, Neum. From domesticated pig. 



Boophilus decoloratus, Koch. Abundant on cattle. 



Boophilus australis. Fuller. From local cattle. 



Amhlijomina variegatum, F. Taken from cattle, goats, sheep and camels. 



Amblyomma hebraeum, Koch. A rare species ; a few have been obtained from 

 cattle. 



Hyalomnia aeggptium, L. A number have been collected from camels ; on other 

 domesticated animals they seem to be rare. I am inclined to think that this species, 

 like R. pulchellus, has been unable to acclimatise itself. 



Haemaphysalis leachi, Aud. Very common on dogs. 



Haermiphysalis bispiiiosa, Warb. From imported Indian cows. 



My thanks are due to Mr. Guy A. K. Marshall, Director of the Imperial Bm-eau 

 of Entomology, and the various experts of the British Museum, who have so promptly 

 identified all material submitted to them. 



