The epistoma, the liypostoma and the mandibles are of the 

 usual type, like those of Liponyssus lacertarum (Contar.). 

 Habitat: Lacerta agilis, Lacerta viridis?, (in terrario). 

 Patria: Netherlands, Hungary? 



18. Key to the species of Lipouyssus KIti. 



Nymphs. 



i With 6 intermediate shields . . . L. rhinolophi Oudms. 

 ' With 4 intermediate shields ... 2. 



!Posterior dorsal shield half as wide 

 as anterior L. lacertarum (Contar). 

 Posterior dorsal shield much narrower L. saurarum Oudms. 



Maks. 



i With broom of bristles around anus L. corethroproctus (Oudms.) 

 I Without broom 2. 



!With two enormous curved spines 

 on each side L. uncinatus (Can.). 

 v Without such unci 3. 



Dorsal shield narrow, surrounded by 



iunprotected skin L. musculi (C. L. Koch). 

 Dorsal shield wide, occasioually sur- 

 rounded by unprotected skin . .4. 



c Pemur 3 with spur L. lacertarum (Contar). 



i Pemur 3 without spur 5. 



< Peritrema passing the coxae 3 . . L. saurarum Oudms. 

 ' Peritrema reaching coxae 1. . . . L. albatus C. L. Koch. 



Females. 



iTwo dorsal shields L. musculi (C. L. Koch). 



'One dorsal shield 2. 



t With sternal shield 3. 



I Without sternal shield . . . . L. uncinatus (Can.). 



