90 APAMEA UNANIMIS. 



with scarcely any trace of ochreous in its composition, 

 but this is the only change, as all its details remain 

 relatively the same. 



The cocoon is made of pale grey glassy-looking silk, 

 compact and smooth of texture, firmly adherent to the 

 substances around it, broadly oval in form, and little 

 more than half an inch in length ; the pupa is half an 

 inch long, of moderate stoutness, smooth, dark red- 

 dish-brown in colour, and very highly polished. (W. 

 B., 11, 71 ; E.M.M. VIII, 207, February, 72.) 



On the 6th of August, 1882, I received from Lord 

 Walsingham three young larvse feeding in the con- 

 volute pointed shoots of leaves of Phalaris arundi- 

 nacea ; they were about 10 mm. long, with black head 

 and neck plate and a black anal plate ; the body bluish- 

 green, with paler delicate cool grey lines, dorsal and 

 subdorsal and broad spiracular stripe, and the belly 

 nearly as pale ; the segmental folds of skin of a pale 

 ochreous-greenish. One of these had prepared to moult, 

 and had got over the operation before the 10th, and 

 by the 15th it had grown to be 16 mm. long, of the 

 true Noctuid form, and the head had become brown, 

 and the neck less dark brown, with the dorsal and sub- 

 dorsal lines running through it ; the ground colour of 

 the body more of a drab-greenish than before ; the 

 minute dusky dots were visible with the lens. There 

 was at that time no doubt in my mind that this in- 

 dividual was Ajpamea unanimis. 



On the 9th of August I received from Lord 

 Walsingham seven more, all like the preceding. 



On the 20th the larvse, after moulting, were quite 

 brown, with brown head and a darker browu streak 

 on each lobe, the neck plate the same, both shining; 

 the lines began on the front of this plate, the dorsal 

 line thin along this plate and afterwards thicker, but 

 the subdorsal began at its full thickness, and they 

 were of paler brown than the brown of the ground 

 colour ; the broad spiracular stripe and the belly were 



