LEPIDOPTERA. 283 



eating the fleshy part ; others also make galleries, but only in the 

 cuticle of the tree, or in the tenderest part of its bark. Some, again, 

 shut themselves up in one or many leaves rolled like a trumpet, 

 while others keep at the summits of plants, whose leaves they bind 

 together in a parcel with threads. And, lastly, some devour the 

 stones of fruits, such as that of the olive. 



The moths of these caterpillars are very small, and generally of 

 brilliant metallic colours, they are to be found in the woods, and still 

 more in the orchards, from the beginning of June till the month of 

 September. 



The CEcophorce are very slim and elegantly formed. Their 

 anterior wings, which are very narrow, are often ornamented with 

 silvery longitudinal lines, the posterior wings exactly resembling two 

 feathers. 



The caterpillars live and metamorphose themselves in portable 

 cases, which they manufacture from the membranous portions of 

 leaves, whose flesh alone they eat. These cases are generally of a 

 brown colour, resembling a dead leaf. They are attached perpen- 

 dicularly under the leaves of many trees, but often under those of 

 fruit trees. 



Certain species of (Ecophorce have cases partly covered with loose 

 pieces only slightly attached, formed of portions of leaves, and ar- 

 ranged in such a way that Re'aumur compares them to the furbelows 

 which ladies used formerly to attach to the bottom of their dresses. 



