t>. 



138 (dr. a. c. ottdemans). notes on acari. 



Î genital shield wider than 



sternal P. caligus Kolen. 



? genital shield narrower than 



sternal P. jheringi Oudms. 



17. Uropoda wagneri Oudms. nov. sp. 

 (With. Plate 11 fig. 28—30). 



Briefly described in Entomologische Berichten, p. 38; 1, VII, 1902 



I have only one deutonyrnpha , found by Prof. .1. Wagner on 

 a Russian bat. 



Deutonyrnpha. — Length 568 «. — Colour very pale straw- 

 coloured. — Shape like that of Urojmla kravicri. — The dorsum 

 (Fig. 28) is quite polishe 1, with numerous little hairs, which stand 

 in irregular I'ows, almost parallel to the margin. It is protected 

 by a median dorsal shield which only quite anteriorly is fused 

 with the circumjacent ring formed by the coalescense of the lateral 

 and posterior shields. This ring is almost hairless. — On the 

 ventral side (Fig. 29) you observe the sterni-genital shield, with 

 slight excavations at the level of coxae 2 and 4, and with 5 pairs 

 of large pores; it is polished. The venlri-anal shield is broad, 

 semilunal, with anterior margin sowewhat bowed inward, and with 

 6 pairs of large pores. The metapodial shields are truncated poster- 

 iorly and fused with the pedal ones; there is a deep gut between 

 coxae 3 and 4. The pits for the legs are small, just large enough 

 to receive them. The stigma, as is usual, lies in the pit 3. The 

 peritrema runs first outward to reach the edge of the body, then 

 bends inward between the pits 2 and 3, then again outward, 

 not quite till tlie edge, then slowly inward and forward passing 

 the pit 2 and proceeding till the foremost margin of the pedal shields. 



The hypostoma (Fig. 30) is very characteristic. It shows a wide 

 cleft, separating the inner malae. These are pointed and bear a 

 (movable?) inner and lower appendage, forming pincers The outer 

 malae are thick, well chitinized. The 6 hairs of the hyposlome 

 are beautiful feathers; moreover the edge of the rostral tube bears 



