498 BRITISH ORIBATID^. 



Average length about '84 mm. 



Average breadth about '40 mm. 



Average length of legs (first pair) about "50 mm. 



Average length of legs (second and third pairs) 

 about '38 mm. 



Average length of legs (fourth pair) about '44 mm. 



This is Nicolet's type species, and I do not see that 

 a better type of the genus could be found. 



A species remarkable for the length and size of the 

 curved hairs or spines, bordering the abdomen^ and of 

 the apophyses from which they spring. 



Colour moderately dark, chitinous-brown ; the crea- 

 ture, however, is usually so covered with dirt that it is 

 seldom that the real colour or texture can be seen, 

 except immediately after emerging from the nymphal 

 skin. 



Texture rough and covered with short villous pro- 

 cesses, looking granular ; without any polish, usually 

 rather leathery. 



Shape oblong. 



Cephalothorax the full width of the abdomen. Ros- 

 trum rather blunt ; rostral hairs short, curved, covered 

 with villous processes, and springing from short apo- 

 physes. There is a somewhat square projection before 

 the insertion of the first leg on each side, and the 

 coxae of these legs are inserted in deep indentations. 

 There are two short, ill-defined, widely-separated 

 ridges running forward from about the middle of the 

 cephalothorax, and in front of these are two long 

 chitinous apophyses, or tubes, extending considerably 

 beyond the rostrum ; each bears a long, stout, curved 

 spine or hair ; the two from the opposite sides cross 

 beyond the rostrum. The spines and apophyses are 

 covered with villous processes. Pseudo-stigmata very 

 projecting tubes. Pseudo-stigmatic organs small, with 

 shortly pyriform, almost globular heads on very short 

 peduncles. Interlamellar hairs very long, thick, slightly 

 curved, covered with villous processes ; they spring 

 from short apophyses. 



