216 BRITISH TYKOGLYPHID^. 



lary elevations which bear these spines are the largest, 

 and form the posterior corners of the abdomen. Legs 

 long and slender ; the anterior pair pass the tip of the 

 rostrum by the whole length of the tarsus ; the fourth 

 pair pass the posterior margin by the whole length of 

 the tibia and tarsus ; the tarsi are very long. The 

 hairs upon the legs are few and short. 



I have not found the male of this species. 



Nymph (fig. 2). Nearly colourless, slightly yel- 

 lowish; rostrum and legs pink, but very light; 

 broader in proportion than the adult, the abdomen 

 being widest at its junction with the cephalo thorax 

 and diminishing backward. There are four pairs of 

 mammillary elevations on the dorsal surface, but one 

 pair is on the cephalothorax and three on the abdo- 

 men ; the pair on the cephalothorax is almost conical, 

 those on the abdomen broad, almost cylindrical, but 

 truncated at the distal end, and with a tubercle on 

 the truncated surface ; the tips are not chitinized as 

 in the adult, and the spines borne by them are not 

 as long as those of the adult; otherwise there is a 

 considerable resemblance between the two. 



Hypopial Nymph (fig. 3). 



Length about . . ...'.. '20 mm. 



Breadth about . . . . . "12 



Length of legs, first pair . . . . '13 



second pair . . . '10 



Almost colourless ; legs pinkish ; obovate, very long 

 in form ; legs slender ; fourth pair passes the hind 

 margin. Notogaster polished, entirely without hairs. 

 I regret to say that I could not make out the disposi- 

 tion of the suckers on the sucker-plate. 



Habitat. I only found this species once ; that was 

 in a mole's nest. I am not aware that anyone else has 

 ever found it. I do not suppose it to be a parasite of 

 the mole. 



The figures were drawn from life. 



