438 BRITISH ORIBATID^. 



of hairs. Nicolet mentions three short ridges near the 

 progaster which I have not seen on the English speci- 

 mens. Genital and anal plates close together and very 

 large, occupying almost the entire length of the ventral 

 plate. Genital plates nearly square, much broader 

 than the anal plates, which are oblong. There are a 

 few fine hairs on the reflexed surface of the dorsal plate 

 seen from the ventral side, and on the ventral plate. 



Nymph. 



I am not able to distinguish this nymph from that 

 of D. geniculatus ; it carries the dirt in the same way ; 

 it is of course smaller, but as this depends on age it is 

 not a guide. 



Distribution. — My specimens have come from the 

 Midland Counties ; I have not found it commonly. I 

 believe, however, that it is pretty generally distributed 

 but is apt to be overlooked from its similarity to D. 

 geniculatus. It has been recorded in France and 

 Germany. 



