502 BRITISH ORIBATID^. 



distal end. From the dorsal aspect the coxse of the 

 third pair are hidden by the abdomen. Genuals and 

 tibiae of about equal length ; the tarsi are the longest 

 joiuts. The legs are furnished with one or two whorls 

 of short, curved, almost hooked hairs, on each joint 

 except the coxae and tarsi ; the inner hair of the whorl 

 is absent in the two hind pairs of legs. These hairs 

 hardly seem to spring from apophyses^ although they do 

 arise from very slight elevations. There is a bunch of 

 rather long setiform hairs springiug from a rounded 

 elevation in the upper median line near the distal end 

 of each tarsus. Claws tridactyle, almost homodac- 

 tyle. 



Abdomen oblong, raised above the cephalothorax. 

 Progaster rather convex ; hind margin decidedly convex^ 

 it bears three pairs of apophyses, from each of which 

 springs a large curved hair covered with short villous 

 processes. The largest of these is the most anterior, 

 and is set on the actual edge, the next pair is further 

 from the edge and is set on the hinder, almost perpen- 

 dicular part of the rounded lobe below mentioned ; the 

 third pair are nearer the median line, and a little 

 within the edge. A pair of much smaller similar hairs, 

 not springing from apophyses, project from the ven- 

 tral surface. The general level of the notogaster is 

 flat, but there are some elevations and depressions, viz. 

 a slightly depressed space in the median line is bor- 

 dered by a raised ridge. The space is not defined 

 anteriorly, nor does the ridge run round the anterior 

 side, but it commences near the progaster, and is 

 there about a fifth of the width of the abdomen ; it 

 continues more or less parallel-sided for about three- 

 fifths of its length, then there is a very slight constric- 

 tion ; from this point it widens rapidly, and at its 

 hind margin is about twiee as wide as anteriorly. 

 Near the constriction the two sides are joined by a 

 slighter, transverse, curved ridge. A diagonal ridge 

 runs outward and backward from each posterior 

 corner of the main ridge. There are three pairs of 



