122 



INSECTS AFFECTING THE GRAPE. 



wings, appears in spring, and deposits eggs upon the 

 grape-vines. The larva soon hatches, and feeds upon 

 the leaves, becoming fully grown during the latter 

 part of summer. It is then about two and a half 



Fig. 59. Abbot Sphinx: larva and moth. 



inches long, yellowish or reddish -brown in color, and 

 of the form represented in the upper illustration of 

 Fig. 59. It now descends to the ground, where it 

 forms a loose cocoon, within which it changes to the 

 chrysalis state, remaining in that condition until the 

 following spring, when it emerges as a moth again. 

 Remedies. — Unless this insect becomes much 

 more numerous than it has been heretofore, it can 

 •easily be held in check by a little hand-picking. 



The Grape-vine Leaf-hopper. 



Typlocyba vitis. 

 This little insect is frequently called the Grape 

 Thrips, but its more proper name is the one given 



