OF THE FARM AND GARDEN. 233 



by fastening two portions together by its silken threads; 

 and for this reason, in contradistinction to the many leaf- 

 rollers, may be popularly known as the " Grape Leaf- 

 folder." It is of a glass-green color, and very active, 

 wriggling, jumping and jerking either way at every touch. 

 The head and thoracic segments are marked as at figure 

 143, 2. If let alone these worms will soon defoliate a 

 vine, and the best method of destroying them is by 

 crushing suddenly within the leaf, with both hands. To 

 prevent their appearance, however, requires far less 

 trouble. The chrysalis is formed within the fold of the 

 leaf, and by going over the vineyard in October, or any 

 time before the leaves fall, and carefully plucking and 

 destroying all those that are folded and crumpled, the 

 supply for the following year will be cut off. This should 

 be done collectively to be positively effectual, for the 

 utmost vigilance will avail but little if one is surrounded 

 with slovenly neighbors. 



We believe this insect shows no preference for any par- 

 ticular kind of grape-vine, having found it on all the 

 cultivated, as well as the wild varieties. Its natural ene- 

 mies are Spiders, Wasps, and a small Tachina fly, which 

 attacks it in the larva state, and a small clay-yellow 

 beetle is supposed to attack it. 



THE COMMON YELLOW BEAR. 

 (Spilosoma Virginica, Fabr.) 



This is one of the most common North American in- 

 sects. The moth, which is very generally dubbed "the 

 Miller," frequently flies into our rooms at night. 



Though the moth is so common, how few persons ever 

 think of it as the parent of that frequent and most trouble- 

 some of caterpillars, which Harris has so aptly termed 

 the Yellow Bear. These caterpillars are quite frequently 



