THE ENTOMOLOGIST. 129 



interwoven between each, whilst others are, however, quite 

 free from any webbing, and stand out bold and sharp. By 

 continuous observation I find it occupies the larva thirteen 

 hours in the entire construction of its case, eight hours being 

 employed in carpeting the interior with brown silk, and five 

 to cut out the case and add the necessary white silken pro- 

 jections. If, after the iuiago has escaped from the pupa, we 

 cut open the case, we perceive that during the winter the 

 larva has employed itself in spinning a coating of white silk 

 over the original brown silken lining. The perfect insects keep 

 coming out for a month, and the extent of the life of the 

 imago is nine days. — Charles Heali/ ; 74, Napier Street, 

 Hoxton, N. 



Observations on the Moulting, Economy and Pupation of 

 the Larv(B of Antispila Pfeijferella. — This larva mines its 

 food, Cornus sanguinea (dogwood), like the larva' of A. 

 Treitschkiella ; but I have no particulars to relate respecting 

 its economy whilst feeding in its mine ; that it moults I have 

 proof, ^as I find the pi'esence of a cast-off skin inside the 

 mine. When full-fed its body is grayish white; head brown ; 

 2nd segment brown, darker at the sides ; dorsal vessel red- 

 dish, and like that of the larva of A. Treitschkiella: it coats 

 the part of its food it intends appropriating for its case with 

 brown silk, and afterwards, cuts out a similar shaped case, 

 but, unlike the larva of A. Treitschkiella, it does not decorate 

 the extremities of the same with silken projections : after 

 cutting out its case it falls to the ground, and crawls about in 

 search of a suitable spot in which to pass its pupal state, and, 

 having fixed upon a locality, the larva throws off its skin ; 

 its body is then milk-white ; mouth dark brown ; eyes black : 

 it then re-lines its case, but this time with white silk ; after 

 this the larva, unlike that of A, Treitschkiella, retires under 

 the ground, and, after moulting once more, enters its pupal 

 state, in which it remains until the following May, , when the 

 imago comes forth in all its beauty. It will be observed that, 

 when speaking of the full-fed larvae of this genus, I have said 

 they fall to the ground alter cutting out their cases, and crawl 

 about. The question that will most naturally suggest itself 

 to the minds of my readers is, — How, considering that the 

 larvai are apodal, can they crawl about, and that, too, whilst 

 enveloped in a case .'' In answer to which my reply is, that 



