66 



two distinct tactile hairs. Coxa 2 (Fig. 37), is provided with a 

 spur direct forward. 



Habitat: Rhinolophus ferrum equinum. 



Patria: Italy. 



17. Liponyssus saurarum Oiidms., uov. sp. 



(With Plate II, fig. 38—40, 42 and Plate III, fig. 41, 43—44) 

 This species has already been mentioned in my paper entitled 

 New List of Dutch Acari, 2nd Part, Parasitidae, concluded 8 April 

 1901, but not yet published. The mites were caught in large 

 numbers on Lacerta agilis at Rotterdam, by Mr. K. Schütz. They 

 may, however, have immigrated there on Lacerta viridis from 

 Hungary. 



Nympha. Length 525— 650 p. Shield 210 p. First leg 315 p. 

 including the coxa. Colour pale when fasting, brown with numerous 

 black spots when partly fed, bloodred when well fed. Shape oval, 

 only somewhat shouldered when fasting. On the dorsal side (Fig. 

 38) the nymph shows a pentagonal anterior shield, scaly, and 

 covering the anterior half of the dorsum. Behind this shield there 

 are two pair of intermediate shields. Posteriorly a small, round 

 scaly posterior shield protects the top of the abdomen. The anterior 

 shield bears 20 hairs arranged symmetrically. The posterior shield 

 bears two bristly hairs which are nearly wholly visible beyond 

 the margin of the abdomen. The abdomen is finely wrinkled except 

 in the shields, and provided with a few bristly hairs. The nymphs 

 can be kuown at once, even when seen with low powers, by 4 

 hairs projecting beyond the margin of the abdomen. Ventral side 

 (Fig. 39). The sternal shield is small, subheptagoaal with top 

 backward, between the coxae 4. The anal shield is small, oval, 

 with top backward and with cribrum, like all the species of 

 Liponyssus. 



Male. Length 500—535 [i. Shield 500 p. First leg, seen from 

 below, inclusive the coxa, 385 p. Colour like that of the nymph, 

 though I saw none of a blood-red colour. Shape oval, with the top 

 directed backward, slightly shouldered. Dorsal side (Fig. 40). It is 



