116 (DR. A OÜDEMANS), NOTES ON ACAKt. 



In the Tijdschrift voor Entomologie, v. 43, Verslagen, p. 72, 

 published 20, XI, 1900, I already mentioned «an acarus, which 

 ^positively was strayed in Amsterdam from tropical regions. It is 

 «an acarus with a tropical shape; it probably belongs to a new 

 «genus, for it possesses all the characters of Lœlaps, except the 

 «legs I which lack the claws and the ambulacral sucker. I have named 

 «this mite provisorily Lrelaps jaspersi^) (In honour of the finder, 

 Mr. J Jaspers Jr.). 



In the same journal, v. 45, p. 4, 8, 25, published 10, IX, 

 1902, I created a new genus for this creature, Neopodocinum, 

 with the following characteristics: its nearest ve\dX\\e \?> Podocinum 

 Beri., of the Laelaptinae ; it differs, however, from it by having 

 a robust shape and short legs I. 



One of the reasons which led me to place the acarus among 

 the Laelaptinae was the shape of the epistema, which resembles 

 that of Ijihidoides like two peas. 



By the courtesy of Mr, L. H. D. De Vos tot Nederveen Cappel 

 I received a few acari caught by his son in Medan (Deli, Sumatra). 

 Among these there were two Gamasids who, after closer examin- 

 ation, proved to be new members of the genus Neopodocinuml 



So my supposition that Neopodocinwm be a genus of tropical 

 regions is confirmed. 



But my having placed it under the Laelaptinae "^d&y^vowg. The 

 second legs of the males are provided ventrally with tubercles, 

 whilst those of the females lack these tubercles. This sexual differ- 

 ence characterizes the Farusitinae. And though the unprotected 

 venter and the shape of the epistema more remember us of Lae- 

 lajptinae, I do not hesitate a moment to place it in future in the 

 JParasiiinae. 



In the same time I am in the occasion to give ample generic 

 characters : 



Neopodocinum : Parasitinae without ventral shield (Fig. 6, 13). 

 Moreover: Dorsal shield in protonympha double (Fig. 5), in adults 

 single (Fig. 11). cT legs I with ambulacrum (Fig. 11), $ legs I 

 without ambulacrum. Coxae 4 near each other (Fig. 6, 13). Peri- 



