ON A WIDELY DISTRIBUTED GAMASID MITE, ETC. 



57 



also a short but distinct spinule (or spur) at the distal end (on the inner side) of 

 the coxa of the first leg. First leg longer than the fourth ; second and third legs 

 rather short, the former being stout. Fingers of chelicera moderately long and 

 unarmed. 



Colour (in spirit) usually yellowish, but sometimes red. 



Length of body, -65-- 7 mm. 



(J. Dorsal shield not unlike that of the female, but broader ; the arrangement 

 of the hairs on its surface is practically the same in both sexes. Peritreme long. 

 Ventral plate provided with seven or eight pairs of hairs and also with the usual 

 unpaired posterior hair. Tarsi of legs 2-4, furnished below with slight distal spurs, 

 which are separated from one another by a distinct interval. Some of the hairs 

 on the lower surface of the legs are short and spiniform (see fig. 2). Second free 

 segment of palp with two especially noticeable lateral spines. Chelicera as figured 

 (see fig. 2). Length of body, -5 mm. 



Fig. 3. Leiognathus morsitans, Hirst ; dorsal 

 view of protonymph. 



Protonymph. — Shape of dorsal shields as shown in figure 3. Hairs on anterior 

 dorsal shield twenty in number ; the second pair and those on the lateral margins 

 being long, but the central hairs short. Posterior dorsal shield shaped very like that 

 of L. bacoti, Hirst, and the three pairs of hairs on it are also very similar, those of 

 the anterior pair being short, but the others long. Two pairs of distinct little 

 platelets are present between the two shields. Hairs on uncovered part of dorsal 



