304 AMERICAN POMOLOGY. 



Anomala lucicola, or the light-loving Anomala, is founil 

 on the graj)e vine in July. It resemhles the May Beetle, 

 but is smaller, being 0.35 inch long. 



These are not all the beetles that feed upon the grape 

 vine. 



Nacrodactylus subspinosa, or the Rose-chafer, is an- 

 other nielolonthian beetle, which is exceedingly destruc- 

 tive to grapes and various other plants in many parts of 

 the country, in May and June. This insect is smaller than 

 the others of its group, but is equally destructive as a leaf- 

 eater, on account of its numbers. On the grape, it cuts, 

 off the young bunch of buds and blossoms, and thus seri- 

 ously diminishes the crop, as well as by destroying the 

 foliage. It is of a buff-yellow, with black feet, about 

 0.33 inch long. They continue to ravage vegetation 

 about a month, and then retire into the ground, an inch 

 deep, and deposit their eggs, which hatch in about twenty 

 days, and the young grubs feed upon tender roots, attain- 

 ing their full size, three-quarters of an inch, before -Winter, 

 when they descend deeper to hybernate. 



The Rose-beetle has many natural enemies, among which 

 are the Dragon-flies ; but we must depend upon human 

 efforts for their destruction, an almost hopeless task, for 

 their name is legion, but so much the greater necessity for 

 the effort, and as they are sluggish, they may easily be 

 caught and thrown into hot water, or otherwise destroyed. 



Tree Franers are the larvae of beetles that excavate a 

 burrow in small limbs of trees, so as to make a section al- 

 most across their substance ; most of them then bore up- 

 ward into the limb, and await the action of the winds to 

 break off the part and waft them to the ground, where 



