86 [NOVE.MIIKK 



The larva is lemon-yellow; head and spot on the middle of the second 

 segment pale brown. I have no doubt about the distinctness of this spe- 

 cies from any other mining the leaves of plants allied to the rose family. 



It may, however, be identical with or closely resemble the Eui'opean 

 JV. Auomalella. 



GEN IX. 



HABITS OF THE LARVJE. 



In early life the larvai are leaf-miners and make mines on the under 

 surfiice of leaves, difficult to be distinguished from those of the genus Llth- 

 ocoUctiti. Towards maturity, however, they abandon their mines and feed 

 under a portion of a leaf turned down from its edge, which is bound close- 

 ly with silk. When they are full fed, a small poi'tion of the edge of a 

 leaf is turned over and the larva weaves its cocoon within the cover thus 

 made. 



O. quadripunctella. Early in August the larva may be found in 

 the leaves of June-berry or Service-berry making lithocolletiform mines 

 on the under surface. Towards the middle of the month, it abandons its 

 mine and feeds under a turned down portion of the leaf The larva is 

 dirty greenish, with four black dots on the head and four on the dorsum 

 of the second segment. It weaves its cocoon, which is reddish-brown, 

 during the latter part of the month. 



CATASTEGA. 

 HABITS OF THE LARVJE. 



The insects included in this genus are not leaf-miners although they 

 belong to the division of Micro-lepidoptera. I am not, perhaps, justified 

 in forming a genus from the charactei's and habits of the larvae and would 

 not do it, if I were not convinced that the genus is undescribed. The 

 insects may not belong to the group Tineina, and if not they most probab- 

 ly belong to the Phycites. 



The larvae make tubes in which they live, with the grains of their ex- 

 crement and silk, on the underside of leaves, covering them with a tent or 

 sheet of closely woven silk, under which they feed, by picking out the 

 parenchyma of the leaves. They are extremely timid, and do not begin 



