110 



[October, 



for about half the spot, and the tint of a robin's red breast for the 

 remainder, but owing to the position of the white portion so near the 

 segmental fold, only the red hinder part of the spot is to be seen, except 

 when the larvae is stretched out in walking ; on segments 2 to 4 these 

 spots are altogether whitish ; immediately below comes another velvety 

 black stripe, broadest at the centre of the body, and tapering consider- 

 ably towards the head, but less so towards the tail ; just above the feet 

 comes a greyish-ochreous interrupted stripe, edged on both sides with a 

 dark brown line ; the tubercles and short hairs are brown, the longer 

 ones black. 



The pupa stout, reddish-brown in colour ; enclosed in a very slight 

 web of silk, under cover of a stone or piece of moss. 



Lithosia griseola. Eggs kindly sent to me by Mr. Doubleday, 

 August 11th, 1867, larvae hatched August 15th ; by the end of Novem- 

 ber nearly half-an-inch in length ; full grown during May, moths out 

 June 14th to 27th, 1868. 



The larvae fed at first on withered leaves, especially delighting to 

 riddle decaying sallow leaves full of holes ; but I saw them also eat a 

 little clover, knot grass, and various lichens and mosses ; early in the 

 spring they attacked vigorously some slices of turnip, but afterwards 

 on attaining some size, they fed away steadily on Lichen caninus, which 

 I have since learnt has been noticed to occur where the moth is most 

 abundant, and no doubt forms part of the natural food of the larva. 



When full grown the length is quite an inch, the figure stout and 

 uniform ; the head small ; all the tubercles tufted with stiff" hairs, which 

 are short on the back, and longer on the sides, with a few of extra 

 length on the second and thirtenth segments. 



The colour is a rich velvety blackish tint above, dingy blackish- 

 brown below ; the central portion of the back is, however, to be dis- 

 tinguished as a stripe of more intense black than the rest ; there is a 

 sub-dorsal orange-ochreous stripe, which being interrupted by the tu- 

 bercles appears on segments 4 to 12 as a row of wedge-shaped marks ; 

 but on the 2nd segment there is no interruption, and on the 3rd the 

 whole dorsal area is occupied by a large orange patch, bisected for a 

 part of its length by the deep black dorsal line ; and on the 13th the 

 sub-dorsal wedges are replaced by two large squarish marks ; the hairs 

 are dark brown ; the head a most brilliant black. 



Some of the larvae had the orange marks very faint indeed ; and 

 two of them had no orange marks at all, except on segments 2, 3, and 

 13, thus presenting a good variety. 



