1868. 



118 



The ground colour of the back varies — being pale grey, whitish- 

 grey, or white ; and the colour of the sides and belly is grey, brownish- 

 grey, or greenish-grey ; there is a sub-dorsal stripe of black, separating 

 the white back from the grey sides, and itself interrupted by one of the 

 hinder pair of tubercles on the back of each segment ; down the centre 

 of the back run two black lines, which represent the dorsal stripe, ap- 

 pearing united at the hinder end of all the segments, as well as on the 

 front of all, except the last four, and interrupted through the middle of 

 the others ; and between these lines and the sub-dorsal stripe comes 

 another fine black line on the hinder half of each segment ; on the 4th 

 segment the space between the dorsal lines is filled up with black, form- 

 ing a conspicuous lozenge-shaped mark ; on the 8th segment is another 

 black mark, but triangular in outline ; and on the 9th segment the sub- 

 dorsal black stripe is interrupted by a white spot, which extends some- 

 what into the grey colour of the side ; and along the side run two dark 

 brownish interrupted lines ; the head is dark brownish-grey, lobed and 

 freckled with black ; the tubercles are grey or brownish-grey, and the 

 tufts of hair growing from them are of the same tint. 



Lithosia aureola. The larva received on 19th August feeding upon 

 lichens attached to oak. 



This larva is very active in its habits ; not yet mature, being but 

 little more than five-eighths of an inch in length, rather slender, and of 

 nearly uniform thickness, but tapering very little posteriorly. The 

 tubercles all tufted. 



The ground colour of the back is white, but this appears only as 

 four white lines separating the black dorsal, intermediate, and broader 

 sub-dorsal stripes ; and this pattern is interrupted at the 4th, 8th, and 

 12th segments by dark brownish-black patches covering the back, and 

 on the 4th and 12th looking almost like humps from the greater dense- 

 ness of the tufts of hair ; and on the 9th segment the dorsal stripes 

 are absent, leaving the whole area as a conspicuous whitish spot ; the 

 sides, belly, and legs are brownish-grey ; the folds between segments 3 

 and 4 are white ; there is a white spot just above the legs on the 3rd, 

 and a white blotchy line similarly placed on the 4th ; the 2ntl segment 

 is dark brown, with a reddish margin in front, and a longitudinal short 

 streak from it of the same tint on the sub-dorsal region ; the dorsal 

 tubercles of all but the three dark segments are orange-red, bearing 

 brownish-grey hairs, the first of each dorsal pair being small in size, 

 and the second behind very large, so as to project beyond the sub-dorsal 

 stripe, on which they are placed, into the side, and behind each tubercle 



