TERRESTRIAL ACARI OF THE TYNE PROVINCE 395 



ZETOMIMUS, gen. nov. 



Monodactyle. Lamellae converging forwards. Sensilli 



upright. 

 Femora i without blades. Dorsum glabrous. 

 Type species : ftircatus, P. & W. 



69. Zetomi//rus boothianus, Hull. 



Sensilli straight, strongly clavate and pectinate. 



A single example was found in the nest of a Coal-tit 



sent to me from Ben Rhydding, Yorkshire, by Mr. 



H. B. Booth. 



70. Zetomimus furcatus, P. & W. 



Sensilli sinuous, nude. Lamellae similar to those of 



Ceratozetes. 

 Yorkshire ( Pearce and Warburton). Cumberland, 

 Westmoreland. 

 MYCO BATES, gen. nov. 

 Monodactyle. Tectopedia i lateral. Femora i 



bladed. Dorsum setate. 

 Type species: parmelice, Mich. 

 7T. Mycobates parmelice, Mich. 



Cornwall (B.O.). Oxford (Bagnall). Scotland, 

 Ireland. 

 ORIBATULA, Berl. 



1. Tridactyle ... ... ... ... ... 2 



Monodactyle... ... ... ... ... 7 



2. Lamellae with obvious cusp ... ... 3 



Lamellae without cusp ... ... ... 4 



3. Cusp rounded ... ... ... ... exilis 



Cusp acute ... ... ... ... ... affinis 



4. Dorsum setate ... ... ... ... tibialis 



Dorsum glabrous ... ... ... ... 5 



5. Sensilius pyritorm not reflected ... ... plantivaga 



Sensillus long, strongly reflexed ... ... 6 



6. Dorsum quite smooth, polished, red-brown michaelii 

 Dorsum shagreened, very dark ... ... lucasii 



7. Dorsum continuous with cephalothorax ... anemala 

 Dorsal front margin normal ... ... 8 



8. Dorsum elongate, pointed behind ... ... humerata 



Dorsum normal, rounded behind ... ... similis 



