474 BRITISH oribatid;i<;. 



the adult. The pseudo-stigmatic organs are much the 

 same as those of the adult. 



Legs short, the fourth pair not reaching the hind 

 margin in fully-grown specimens. The peduncles of 

 the front femora are not so fine as in the adult, nor 

 the joint itself so broad ; the tibias, particularly of the 

 first pair, are nearly as wide as the femora, but have 

 not the chitinous apophysis for the tactile hair found 

 on this joint of the first leg of the adult. The three 

 central joints of the legs have a more or less perfect 

 whorl of very short, thick, stumpy hairs, much like 

 those on the body ; each third coxa bears one similar 

 hair, and there are a few fine hairs on the tarsi and 

 elsewhere. 



Abdomen bag-shaped, the progaster either nearly 

 straight or considerably convex in the centre ; it is 

 usually exactly the same width as the base of the 

 cephalothorax, so that the two form one line. The 

 abdomen gradually increases in width with a slightly 

 curved outline until about one-third of the distance 

 from the posterior end; at this point the broad, rounded, 

 hind margin may be said to commence. The noto- 

 gaster is slightly arched, and is covered by large, loose, 

 irregular wrinkles, which probably were not ever alike 

 in two individuals ; in some an irregular, more or less 

 inversely pyriform depression is found in the median 

 line near the progaster, as in the drawing ; but this is 

 not always present. The wrinkles are ajDt to be more 

 transverse and parallel near the lateral margins, irre- 

 gular and vermiform near the centre of the notogaster, 

 and more longitudinal near the hind margin. There 

 is a row of hairs round the lateral and hind margins 

 and a few on the notogaster ; about four pairs of these 

 hairs project beyond the hind margin, and are plainly 

 seen ; the others are difficult to see and are very 

 caducent. I did not think that any useful purpose 

 would be served by attempting to depict them. All these 

 hairs, as is the case with those mentioned as being on 

 the cephalothorax, are very short, with tiny peduncles, 



