AEGYNNIS ADIPPE. 71 



tubercles were all dark brown and had black short 

 pointed hairs. 



On the 20th of April I observed the same larva 

 noted above, and suppose it had passed its second 

 moult, though I am not sure ; it seemed to be of a 

 greenish-ochreous colour, with a black head, and with 

 blackish chevrons on the dorsal region and a darkish 

 patch on the side of each segment ; a faintly paler 

 subdorsal line could be traced and also a spiracular 

 stripe ; hairs or spines black, and a narrow line of 

 these across the middle of the second segment. 



On the 21st of May my larvae had all disappeared, 

 as no larva could be found on either of the plants 

 which had thriven well. I must say that I much 

 doubt whether Viola canina be the proper food plant 

 of Argynnis Adippe. (W. B., Note-Book IV, 157.) 



Aegynms Aglaia. 

 Plate X, fig. 3. 



On the 29th of June, 1867, I had the gratification 

 of seeing this larva, which was most kindly presented 

 to me by the Rev. Hallett Todd. 



It was found with others after a strict search 

 amongst Viola canina, and its mode of feeding on the 

 leaves of that plant was peculiar ; for, when eating, it 

 kept advancing with every mouthful until it had got 

 to the end of the leaf, and then quickly walked back- 

 wards to the point of commencement, and proceeded as 

 before, always making a quick retrograde movement 

 before again eating its way forward ; and these opera- 

 tions were performed with such rapidity that half a 

 large leaf quickly disappeared. When its hunger was 

 appeased, it usually retreated below the leaves or rested 

 on the stalks of the plant. 



When nearly full fed it measured an inch and five- 

 eighths in length, and tapered a little towards the head 



