296 CRAMBOS PEDKIOLELLUS. 



The ground colour is a delicate pearly shining grey, 

 the front of each segment broadly banded with darker 

 grey, which melts into the pale ground colour near 

 the spiracles; the fold of skin at the segmental 

 divisions is whitish. The head is shining brown, with 

 the mouth dark brown ; on the second segment is 

 a brown and polished semicircular plate margined 

 behind with darker brown, and bisected by a central 

 dividing line of the grey ground colour ; a slight indi- 

 cation of this dorsal line appears on the middle of 

 each segment from the fifth to the twelfth ; a striking 

 feature is shown in the ornamentation of the tuber- 

 cular spots, which are blackish-brown and most con- 

 spicuous, those on the third and fourth being paler 

 than the rest; on these segments, also, the dorsal 

 tubercles are elongated transversely, and those on the 

 sides are of a drop shape, as seen in some species of 

 the Eepiali; on the other segments the tubercles on 

 the back are large in proportion to the size of the 

 larva, especially the front pairs, which are thick and 

 transversely oblong, something like rather short bricks 

 in shape, and only separated by the before-mentioned 

 dorsal line ; the hinder pairs are equally long trans- 

 versely, but so thin as to be almost linear ; beneath 

 the oblong pairs of spots there comes on the side a 

 row of circular spots one on each segment ; and below 

 these again are situated the minute black spiracles 

 with an equally small black dot behind each ; a small 

 brownish plate is on the anal tip; the legs andprolegs 

 are pale grey, these last tipped with brown; a fine 

 short pale brown hair proceeds from each of the spots. 

 Like several other larvas that dwell in sand, they 

 become, as they mature, of an ochreous tint in the 

 ground colour, though their spots remain the same as 

 before. 



The tubular residence of agglutinated particles of 

 sand constructed by this active larva is, as Mr. 

 Barrett has previously informed us, four or five inches 

 in length, though it varies in this respect according to 



