HYALOMMA 501 



in length and n mm. in breadth. They are common in the whole 

 of Central America (Carrapatas), and attack mammals, amphibious 

 animals and man. 1 



[This species was described by Fabricius. It occurs in Cayenne, 

 Guiana, in Southern Texas, Florida, California, Mexico, Guatemala, 

 Honduras, Nicaragua, Costa Rica, Panama, Bermuda, Cuba, Jamaica, 

 Trinidad, Colombia, Venezuela, French Guiana, Brazil, Paraguay 

 and the Argentine. It is called the silver tick. It frequently attacks 

 man. Schwarz and Bishopp (Bull. 105, U.S. Dept. Agric., p. 158) 

 heard of one man whose legs were well covered with suppurating 

 sores and who was ill from the attack of these ticks and the wounds 

 produced by scratching, and records other cases of their swarming 

 on man. Newstead (Ann. T.rop. Med. and Par., 1909, iii, No. 4, p. 442) 

 records it as the worst pest to man in Jamaica. F. V. T.J 



Amblyomma americana, Linnaeus. 



The so-called long star tick, from the silvery spot on the apex of 

 the scutum of the female. It will attack any mammal and even birds 

 and also man. It occurs in North America, and also in Brazil, 

 Guiana and Guatemala. Its punctures frequently end in suppuration. 

 In the Eastern and Southern States man is more frequently attacked 

 by this species than any other. Moss-gatherers in Louisiana are 

 badly attacked by it. 2 It also attacks the milkers in dairies. Attempts 

 to transmit Texas fever failed with this species. 



Amblyomma maculatum, Koch. 



The so-called Gulf Coast tick, of the Gulf Coast, occurs on birds, 

 mammals and man, especially cattle, and attacks the ears. 



Genus. Hyalomma, Koch. 



Hyalomma aegyptium, L., 1758. 



Syn. : Acarus cegyptius, L., 1758 ; Ixodes camelinns, Fischer, 1823. 

 A species frequently found in Africa, particularly in Egypt and 

 Algeria, and which also occurs in France and Italy, as well as in 

 Asia. Male 8 mm. in length, 4-5 mm. in breadth. Female up to 

 24 mm. in length and 15 mm. in breadth. It infests large and small 

 animals as well as human beings. 3 



[This is one of the largest ticks, nearly reaching the size of the 

 bont tick. It is known in Africa as the bont leg-tick; all farm stock 



1 Neumann, G. ~L.,.loc. cit., p. 205. 



2 Morgan, " Ticks and Texas Fever," Louisiana State Bull. 55, pp. I34> I35 P L 59- 



3 Neumann, G. L., loc. cit., p. 285 ; Ronsisvalle, " Sui fenomeni morb. prodotti nel uomo 

 da un Ixodide denominate Hyal. &.," Boll. Ace. Gioenia sci. ;//., 1891, xvii. 



