ARTHROPODA 



This Argas is widely distributed, being found in Asia, where, 

 under the term ' garib-guez ' {punaise de Miana), it has long had 

 an evil reputation for causing sickness. It is also known in Quetta. 

 In South Africa it occurs as a parasite of fowls and ducks, and is 

 also known in the Sudan, Egypt, Turkestan, and Pekin. Under 

 the name of A . miniatus it was described in the form of the chicken 

 tick of the United States and the adobe tick of Mexico and Arizona. 

 According to Balfour, it spreads the Spirochceta marchouxi in 

 Sudanese fowls. Nuttall and Strickland have demonstrated the 

 presence of an anticoagulin in the salivary glands and intestine of 

 the tick. 



Argas brumpti Neumann, 1907. 



This tick was discovered by Brumpt in Somaliland. The dorsum 

 is marked by symmetrical hexagonal depressed areas. Female, 

 20 by 13 millimetres. Nuttall says that, according to Brumpt, 

 the bite is very painful, and causes pruritus lasting several days, 

 and the site may remain indurated after seven years. 



Argas cucumerinus Neumann, 190 1. 



Only the male of this tick is known. It has an oval elongated 

 body, brownish-red in colour, 10 by 5 millimetres. It is found in 

 Lima in Peru. Possibly this is merely a variety of A. reflexus. 



Argas hermanni Audouin, 1827. 



Argas with very fine skin-folds and small rostrum. It is found 

 in Abyssinia and Egypt. Possibly this also is only a variety of 

 A . reflexus. 



Argas aequalis Neumann, 1908. 



Synonym. — Ornithodoros cequalis Neumann, 190 1. 



Nuttall places this species with the Argasidae. It was found in 

 German East Africa by Fiilleborn. In size it is 5 by 2 •5 milli- 

 metres, with folded finely granulated integument. 



Argas transgariepinus White, 1846. 

 Synonym. — ^r^as ^oc/^^* Neumann, 1901. 



Argas with very compressed body, not much longer than broad 

 —7-5 by 6 millimetres. Margin with irregular folds. Found in 

 South Africa. 



Caris Latreille, 1804. 



Argasidae with almost circular body, a little larger in front than 

 behind, with a conspicuous transverse groove behind the anus. 



Caris vespertilionis Latreille, 1796. 



Synonyms.— Canos vespertilionis Latreille, 1796; Argas pulchella 

 George, 1876. 

 Parasitic on bats. 



