THE ENTOMOLOGIST, 11 



of tints which appear to differ in different individuals ; belly 

 paler, the region between the ventral and anal claspers 

 greenish. When full-fed it makes itself a retreat by folding 

 together and overlapping the edges of one or sometimes two 

 leaves, and in tlie very compact structure thus made it 

 changes to a smooth brown pupa, with rather elongated ab- 

 domen, which is scabrous at the extremity, and furnished 

 with minute hooks, by which it is suspended. This pupa is 

 without exception the most restless and active I have ever 

 seen; if the cocoon be opened it will continue to revolve, 

 while suspended, with incredible velocity ; and if detached 

 from its hold, it seems as though it were impossible for it to 

 remain at rest; it will roll from the middle of a diuing-table 

 to the edge and throw itself on the floor in less time than is 

 occupied in recording the fact. The moths appear on the 

 wing about the middle of June. 1 am indebted to Mr. 

 Doubleday for this larva, — Edward Newman. 



Desct'iption of the Larva of AinpJtydasis prodromaria . — 

 The eggs are laid in March, on the bark of Quercus Robur 

 (oak), the female inserting her long ovipositor into the cre- 

 vices of the bark, and therein depositing the eggs : in con- 

 finement she is extremely reluctant to ])art with her eggs, 

 unless provided with this their natural nidus, or some sub- 

 stance having a similar surface : the larvse are hatched in 

 May, and it is a curious problem how the minute larvae can 

 ascend to the region of leaves, then beginning to expand. 

 They are usually full-fed in June, and then rest without any 

 arch in the back, but owing to the numerous inequalities of the 

 body the posture can scarcely be called straight ; the larva 

 frequently attaches itself to the food-plant by the legs as well 

 as the claspers ; by the latter it adheres very tightly. Head 

 as wide as the anterior segments of the body, prone ; the 

 face flat, with a depression in the middle ; the crown with a 

 wide and very conspicuous, but not very deep notch : body 

 irregularly covered with raised points, or shagreened, and 

 having numerous wart-like protuberances ; these are always 

 arranged in transverse pairs ; the two on the back of the 2nd 

 segment rather distant ; one on each side of the 5th, 8th and 

 9th segments, the last large and very conspicuous ; two 

 smaller ones on the back of the 12th segment ; and two ap- 

 proximate and indistinct ones on the ventral surface of the 



