65 



Ad 46. Here he lias appareutly meant a sterual shield. His 

 mites may have been fernales or nymphae. 



Ad 5a. His mites may have been fernales. A. o. the female 

 of Liponysus musculi (C. L. Koch) bas ttvo dorsal shields. 



1G. Lipouyssus rhinolophi Oudms., nov. sp. 



(With Plate II, fig. 36 and 37) 

 Nympha. Length 450 — 560 p. Colour white, or pale. Shape like 

 that of the nymphae of other species of Liponyssus, e. g. Lip. 

 musculi (C. L. Koch), but at once distinguished from it by the 

 longer legs. Body well shouldered. Dorsal side (Fig. 36). It is pro- 

 tected by two larger and six smaller shields. The anterior shield is 

 subpentagonal, with distinct shoulders, sinuated on its posterior 

 margin, and with scaly surface. It protects more than one half 

 of the dorsum, provided the nympha be not swollen. It bears 

 10 pair of hairs which are nearly placed in four longitudinal 

 rows of 4 and 6 hairs each ; the two marginal hairs of the 

 posterior half of this shield are stronger than the others. The 

 posterior dorsal shield is subpentagonal, with top turned forward, 

 and scaly surface. Three pair of very small hairs are planted 

 on its lateral margins; one pair in the centre and two pair of 

 longer hairs on the posterior margin, of which the middle pair is 

 the longer and projects far beyond the posterior margin of the 

 abdomen. Between the two shields there are three pair of inter- 

 mediate shields and four pair of hairs of which the anterior two 

 are smaller. The soft part of the dorsum is wrinkled transver- 

 sally and has nine pair of lateral hairs, which project far 

 beyond the margin of the body. 



Ventral side (Fig. 37). There is a wide scaly sternal shield with 



3 pair of long hairs, an anal shield with the usual 3 hairs, 



4 pair of intermediate hairs, 2 pair flanking the anal shield and 



5 pair on the posterior margin of the abdomen. The peritrema 

 is of the common nymphal type. 



Legs. These are slenderer than those in any of the known species. 

 Legs 1 and 2 are a little thicker than 3 and 4. Tarsus 1 bears 



