224 BRITISH TYftOftLYPHTDjE. 



There is also a very long flexible hair near the distal 

 end of each tarsus. The claw is very long, and very 

 slightly curved ; it is joined to the tarsus. 



The Female (PL V, figs. 1, 3) is very like the 

 male with the above-named exceptions. The vulva is 

 between the epimera of the third pair of legs. There 

 is one pair of rings or suckers between the epimera 

 of the fourth pair of legs and those of the third ; and 

 a second pair, one on each side of the vulva, but nearly 

 as far apart as the ends of the epimera of the fourth 

 pair. The fourth legs are not curved like those of the 

 male, and the tarsus of the first pair is without the 

 large spine above the claws. 



The Nymph (PI. V, fig. 5) is widest at the shoulder, 

 and narrows a little toward the hind margin; this 

 margin bears two pairs of strongly developed mammillae, 

 these carry the hairs. 



The Larva is much the same as the nymph, with the 

 usual exception. 



I have not found the hypopus of this species. 



Habitat. I have found the creature only in the 

 exuded sap and wet decaying debris on beech trees 

 (Fagus sylvatica), where the bark has been wounded, 

 and where the exudation, etc., has collected and kept 

 wet. 



Of the specimens which I obtained, the greater 

 number were thickly covered on the dorsal surface, 

 and more sparsely on the legs and ventral surface, 

 with living Vorticellidse (PI. V, fig. 4). 



Sub-family TYROGLYPHINJE. 



Tyroglyphidse with the ambulacra of all the legs 

 sessile and with chelate mandibles. 



I have thought it convenient to include such foreign 

 genera as I think should be retained in the following 

 table, but there are not any British representatives of 



