ORNITHODORUS 373 



and Portuguese East Africa. It occasioned considerable annoy- 

 ance to the troops during the South African war. It frequents 

 for preference the shade of vegetation, but is found in exposed 

 places, and also invades the native huts. All animals seem to 

 be attacked, but it has a decided preference for man. This 

 species also occurs abundantly in Uganda and bites natives severely, 

 causing a fever from which they may die in a short time. I have 

 recently received numbers alive from the Uganda Protectorate. This 

 is the species connected with the recently discovered disease in man- 

 Tick Fever. F. V. T.] 



Ornithodorus turicata (Duges), 1876. 



Without eyes. Indigenous in Central .America ; attacks human 

 beings and pigs. The bite is painful and is often followed by 

 serious consequences. 1 



[So virulent is this species that pigs put in an infested sty 

 often die in a night. This " turicatas " of Mexico often reaches 

 6 mm. in length. F. V. T.] 



Ornithodorus talaje (Guerin-Meneville), 1849. 



Syn. : Argas T at age, Guer.-Men. 

 Likewise without eyes and a native of Central America. 2 



Ornithodorus tholozani (Laboulbene and Megnin), 1882. 

 Syn. : Argas tholozani, Lab. and Meg., 1882. 



Without eyes. Males 46 mm. in length and 24 mm. in 

 breadth ; females 8 10 mm. in length and 45 mm. in breadth. 

 It especially attacks sheep. Native of Persia. 3 



[This species is reputed as being very dangerous ta man. It 

 is locally known as the kene, or sheep-bug. In its fully gorged 

 state it is deep violet. F. V. T.] 



1 Megnin, P., " Les Argas du Mexique " (Journ. de I'anat. et de la phys.. 1885, xxi., 

 p. 463; Neumann, G., 1896, p. 31; Duges, A., " PiqAre de Turicata" (C. R. soc, 

 biol, Paris, 1885, ii., p. 216). 



- Guerin-Meneville, " Descr. de I'Arg. tal." (Rev. et mag. de zool., 1849, p. 342 ; 

 Megnin; P., " Les arg. de Mex." (I.e., p. 460) ; Neumann, G., I.e., 1896, p. 34. 



3 Laboulbene, A., and P. Megnin, " Mem. sur les Argas de Perse " (Journ. de I'an. 

 et de la phys., 1882, xviii., p. 333); Neumann, G., I.e., 1896, p. 38. 



