50 



The genus Catocala contains a large number of fine moths, expanding three or more 

 inches, and having the hinder wings usually banded with red or yellow and black. The 

 larva? are curious flattened caterpillars about two inches long, tapering to each end, 'and 



having a fringe of fine hairs along the sides. When not feeding they rest upon the twigs; 

 in such a manner as enables them to very frequently escape detection. Two speeies, C* 

 Parta, Guen., and C. Concumbens, Walk., are recorded from willows. Fig. 29 shows 

 Catocala Ultronia, Hubn., a species which is sometimes found upon plum, as mentioned 

 by Prof. Saunders in his " Insects Injurious to Fruits." 



Fig. 29. 



The last division of the Macro-Lepidoptera (or larger forms) is the Geometridse, the 

 larvae of which are the " loopers " or " measuring worms," so well known, and several of 

 which are occasionally found upon willows. 



Among the Micro-Lepidoptera — those minute species (such as the Clothes Moth) 

 which are so numerous and so difficult to distinguish, except by entomologists who have 

 specially studied them — there are many species feeding in or upon the galls produced by 

 other insects, or in mines made in the leaves. When leaves are examined they will often be 

 found to have white blotches upon them, or to be traversed by serpentine white streaks. 

 Closer examination will show that these are internal injuries, produced by the eating 

 away of the inner tissues of the leaf. The minute flattened larvae will be often found in 

 their burrows, and can be watched in their work of destruction. The habits of these 

 small motbs are of interest, but cannot be dwelt upon now. 



