360 BRITISH ORIBATID^. 



Texture polished, but when seen by a sufficiently 

 high amplification very finely punctured. The chitin 

 is thin and semi-transparent, showing the internal 

 organs through the dorsal surface, particularly in 

 summer. 



Cephalothorax rather small, not very clearly marked 

 off from the abdomen. Rostrum round-pointed, 

 slightly trifid. Rostral hairs tolerably large and curved, 

 but often almost hidden by the lamellar hairs. Palpi 

 usually showing more or less. Lamella long blades on 

 edge broader at the distal than the proximal ends ; cusps 

 short, longer in some specimens than in others. 

 Lamellar hairs long, setiform, directed forward almost 

 horizontally, springing from near, but not quite at, the 

 upper angles of the anterior ends of the lamellaB. 

 Translamella a mere thickened line. Pseudo-stigmata 

 almost hidden by the advancing corners of the abdomen. 

 Pseudo-stigraatic organs with short peduncles and pyri- 

 form heads, which vary in the extent of the bluntness 

 of the larger ends. The heads appear very granular 

 or cellular internally, and have a few very minute 

 points at the extreme end externally. Interlamellar 

 hairs long, setiform. First and second tectopedia 

 well developed. 



Legs of moderate length, the frout pair being rather 

 longer in proportion than the hinder pairs ; blades of 

 the femora small or absent (first pair). Each anterior 

 tibia has an elevation at the distal end of the median 

 line from which the tactile hair springs. Claivs 

 tridactyle, very heterodactyle. Tactile hairs to all the 

 legs; most joints bear one or two thickened hairs 

 near the distal extremity and some fine hairs, but both 

 of these are frequently missing ; tarsi thickly clothed 

 as usual. 



Abdomen longer than broad, somewhat rounded 

 posteriorly. Progaster strongly undulated, being 

 deeply indented above the pseudo-stigmata. The 

 antero-lateral angles of the abdomen project more sud- 

 denly tha7i in N, tibialis but not qidte so much ; the pro- 



