780 



MR. STANLEY IIIRST ON SOME 



LiPONYSSUS MADAGASCARiENSis, sp.n. (Text-figs. 23, 24.) 



$ . Dorsal shield shaped rather like- that of L. bursa (see text- 

 fig. 23), the liairs on its surface short, the terminal pair at the 

 posterior end somewhat longer than the others. Hairs on the 

 softer pai't of the dorsum numerous, they are short but mostly 

 slightly longer than those on the shield. Sternal 2:>late large, 

 being longer than usual ; it is trapezoidal in shape, the posterior 

 margin being straight except in the middle where it is slightly 

 concave ; there are three pairs of hairs on it and they are rather 

 short. Genito-ventral plate unusual in shape for a species of 



Text-fia-ure 23. 



Liponi/ssns madacfascai^ien/iift, sp. n., $ . Dorsal view. 



Liponyssus, for instead of being pointed or i^ounded oft' posteriorly 

 it is truncated ; also there aie three pairs of hairs on it instead 

 of only one pair, one pair being situated opposite the fourth coxae, 

 the two others at the posterior end of the plate, one of these 

 pairs being placed on its posterior margin. Aiial plate pear- 

 shaped and more elongated than usual. Peritreme extending a. 

 little beyond the first coxa,. Besides the usual dorsal spur, there 

 is a ventral (inner) spine anteriorly on the second coxa, it is stout 

 but carved. There is a similar anterior spine on the third coxa. 

 Both the second and third coxce ore without any posterior spurs. 



