314 OEAMBUS PEBLELLUS. 



cles darker brown with a black dot in each ; the 

 frontal plate was almost unicolorous with the ground 

 colour, and the head was very dark sienna-brown 

 throughout. 



They were living in galleries formed of particles of 

 grass woven together with silk, and placed upright 

 against the stems of grass, but resting on the ground 

 at the base, their habit of living and feeding, indeed, 

 being exactly like those of Cr ambus ivarringtonellus 

 as described by Buckler in the E.M.M. of November^ 

 1880, p. 130. By the 1st of June they had reached 

 half to five-eighths of an inch, and were still of the 

 pale mahogany tint ; the hind pair of tubercles on each 

 segment had become much narrower than the front 

 pair ; the front pair were nearly round though slightly 

 oblong, whereas the hind pair took almost the form 

 of transverse streaks. At this time most of the larvse 

 appeared to be about moulting, and there was evident 

 indication that with it would be a change of colour, 

 for a greyish tint clearly showed through. 



By the 17th of June they were evidently full-grown, 

 and were described as follows : 



Larva three-quarters of an inch in length, stout, 

 and of the usual Orambus shape, i. e. cylindrical, of 

 nearly uniform width, tapering slightly at the pos- 

 terior segments ; the skin is semi-transparent, the 

 head, the plates, and the raised tubercles polished ; 

 the front dorsal pair of tubercles on each segment, 

 and those on the sides, round, the hind dorsal pairs 

 narrow and almost oblong ; the segments are well- 

 defined, and each has a subdividing transverse wrinkle 

 in the middle. 



The ground is of a greyish stone-colour, some 

 specimens having a brownish tinge ; the head is 

 usually pale yellowish-brown, slightly freckled with 

 darker brown ; but in occasional specimens it is much 

 darker brown ; in all cases the mandibles are dark 

 sienna-brown ; the frontal plate is of a slightly 

 browner shade than the ground colour. The greenish 



