454 MAINE AGRICULTURAL EXPERIMENT STATION. 



Vol. 33, 1889) states that this tubular nest on the Birch is the 

 work of P. ferrugana. If there is no error in the identification 

 it is probable that the larva spends its earlier life thus, and later 

 becomes a leaf roller. As we failed to rear adults from this 

 leaf axil inhabitant and did not observe whether the larva later 

 left the tubes to become leaf rollers we cannot prove the iden- 

 tity of the two forms. Our identification of the moth was con- 

 firmed by Mr. August Busck of the National Museum. Lot. 

 Nos. 1289, 1411, 1453. 



FIG. 482. Pcronia ferrugana. 



A larva forming on the alder a similar axil tube is also not 

 uncommon at Orono, Maine. The twig is less swollen than in 

 the case of the birch, though the projecting tube does not differ. 



Olethreutes albeolana. 



This species as well as an undetermined Eucosoma also con- 

 struct tubes within the curled edge of gray birch leaves at 

 Orono, Maine. Specimens determined by Mr. A. I.usck of the 

 National Museum. Lot 141 ia. 



Bulia quadrifasciana. 



This species was bred from a larva found under the bark of 

 .an apple tree at Orono, Maine. Lot 1252. 



