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OBSERVATIONS ON TINEINA. 



sequently in the Tenth leclinidous gall, S. pomum, Walsh, 

 MS., which grows on the leaves o^ Salixcorclata. Each gall 

 contained but a single larva, unaccompanied by the larva 

 of the Nematus, which makes the gall, which it must con- 

 sequently have destroyed or starved out, either in the egg or 

 in the larva state. A single imago came out in the autumn 

 of the same year, but the great bulk of them came out next 

 spring, May 8— 20th, from galls kept through the winter. 

 There can be no doubt of the correlation of larva and imago, 

 because no other Lepidopterous larva or imago occurred in 

 the gall S. j>omum, though I had three or four hundred of 

 them in my breeding vase. The insect must hybernate nor- 

 mally in the larva state, for I noticed numbers of them in 

 the spring crawling about among the galls. In a state of 

 confinement it generally retires to the inside of the gall to 

 assume the pupa state, though I noticed one or two cocoons 

 spun among the galls. Piobably in a state of nature it 

 hybernates in the gall, comes out of it in the spring, and 

 spins its cocoon amongst dry leaves and rubbish. 



'* I also bi'ed a single imago of the same species, May 

 11th, from the Cecidomyidous gall, S. rhodoides, Walsh, 

 from galls kept through the winter, and I found in the 

 spring a denuded imago of what was apparently the same 

 species, dead and dry amongst a lot of Tenth i-edinidous galls, 

 S. desmodioides, Walsh, MS., which is closely allied to 

 S.pomum, but occurs on the leaves of a very distinct species 

 of willow. Thus we have three diiferent willow-galls in- 

 habited by the same moth, two of them made by saw-flies 

 and one by a gall-gnat." 



Batrachedra prceangusfa I have bred from pupae found 

 by Mr. Thomas Boyd in 1854, on the trunks of willows, 

 and I believe Mr. Boyd once sent me larvae of this species ; 

 but unfortunately my want of faith in them led me to neglect 



