A. C. OUDEMANS. ACARI. l6l 



the charge of the mites never on other parts of the body but on the legs, feet and hands." 

 .During the stay of about seven months of our expédition in New Guinea not one of 



the members could obtain any immunity against the poison of the mites; the susceptibility 



of it in the last periods of the stay was quite the same as in the beginning of it." 



.The mites collected by me are struck oft" with a little knife directly from the human 



skin and brought in spirits of 76°/ ." 



A r n h e m, 

 April, i, 1905. 



AP PEND IX. 



Prof. Dr. A. WlCHMANN kindly informs me by date ofSept. 14, the following interesting 

 facts concerning our bush-mites : 



1. „Mr. K. M. VAN Weel, Chief-Ofiïcer of H. M. S. Zeemeenw, wrote me some weeks 



ago: ..Het dierenrijk"" (viz. on the Isle of Groot-Obi) „„was arm vertegenwoordigd alleen 



die onmogelijke kleine vlooien, die zooveel wonden bezorgden aan de (Nieuw-Guinea) expeditie 

 waren flink vertegenwoordigd." " 



2. .Mr. J. W. VAX XoUHUYS did not perceive the bush-mites on the Isles of Sula." 



3. „That W ALLA CE did not meet with the bush-mites at Doré is a conséquence of 

 he having not been in the forest. The greater part of the missionaries avoid going in the forest." 



4. -We never met with the créatures in open pasture-grounds, but always in the forest, 

 especially where Selaginella grows. This is also the opinion of the Assistent-Résident van 

 Oosterzee." 



5. „Probably the accounts of Raffray (Le Tour du Monde, v. 37, 1879, p. 225 — 288; 

 Bulletin de la Société de Géographie à Paris, 7 e série, v. 15, 1878; translated in Globus, 

 v. 36, 1879, p. 129 sqq.) contain some particulars about the subject." 



I immediately searched in the above mentioned accounts of RAFFRAY; the resuit is 

 as follows: The Voyage en Novelle-Guinée, par M. ACHILLE RAFFRAY, chargé d'une Mission 

 scientifique par le Ministre de V Instruction publique, 1876 — 1877. (Le Tour du Monde, v. 37) 

 does not contain anything about the subject. 



The article of the Bulletin de la Société de Géographie de Paris was not within m}' 

 reach, but most probably it is the same as the before mentioned one, for the translation of 

 it in Globus is a verbal translation of the first quoted one. 



Arnhem, 

 September, 23, 1905. 



ERRATA. 



Page 120, 122, 124, 127. For „Entomologische Berichte" read „Entomologische Be- 

 richten". It is a Dutch periodical. 



Nova Guinea. V. Zoologie. 21 



