226 Mr. R. I. Pocock on new 



sulcate, covered posteriorly by the first dorsal plate, and 

 covering the maxillary feet. 



Antmnce very short and exceedingly stout at the base. 

 Two distinct eyes on each side and two much less distinctly 

 defined ones beneath them on the deflexed margin of the head- 

 plate. 



Basal plate invisible. 



Second tergite as long as the first. 



Stigmata conspicuous, elongate ; nine pairs, the seventh 

 somite devoid of them. 



Tarso-metatarsus of all the legs bisegmented, the distal 

 segment much shorter than the proximal. 



Anal somite small ; the pleurce almost covered, without 

 spines and without pores ; sternife exceedingly wide ; legs not 

 spinous, thick, claw small. 



Whether all the characters here given are of generic value 

 can only be decided by the discovery of other species of the 

 genus ; moreover, perhaps some of the features described as 

 specific will prove to be of generic importance. 



This genus is very peculiar. In the structure of its anal 

 somite it is not distinct from Asanada — the two genera in fact 

 may be recognized from all others by possessing exceedingly 

 small, almost covered, truncate, and perfectly smooth anal 

 pleurae. But in the shape of its head, the structure of its 

 antennas, the degree of development of the ocelli, and the 

 relative sizes of the first and second dorsal plates Pseudo- 

 cry ptops stands quite alone. 



Pseudocryptops Walkeri, sp. n. (PI. V. figs. 3-3 c.) 



Colour flavous, head-plate and maxillary feet slightly 

 darker. 



Body slender, narrower anteriorly. 



Bead-plate covering the maxillary feet laterally and far 

 overlapping them anteriorly. 



Antennae, in contact in the middle line, very short, being not 

 longer than the head-plate, very stout pi-oximally, their width 

 at the base being equal to about one third of their length, 

 becoming gradually slender towards the apex, composed of 

 seventeen hirsute segments, whereof the distal only is ovate. 



Palpi of the third pair of gnathites without a claw. 



Maxillary sternite with a faint median sulcus ; prosternal 

 plates distinct, each furnished with three strong conical teeth ; 

 the basal tooth long, strong, and distinctly dentate ; the fang 

 or claw strong and lightly curved. 



Tergites. — The first slightly wider than the head, not sul- 



