are yellow and are placed on the lower side of the leaves, usually in 

 about two irregular rows close together, and from five to twenty-six 

 in number. After depositing a cluster the adult beetle feeds for a 

 longer or shorter time before again depositing, and in this way the 

 period of egg laying is not only extended over a considerable time, 

 but the injury caused by the beetle feeding is correspondingly 

 increased. 



The eggs (Fig. t , a and e) are oval in form, attached by one end, 

 and somewhat pointed at the tip. They hatch in less than a week 

 after they are laid, and as egg laying continues for quite a period, 

 eggs and young more than half grown, may often be found on the 

 same tree. 



The young larvae or grubs (Fig. i, b, g,) feed on the under sur- 

 faces of the leaves leaving the upper surfaces and veins entire, thus 

 skeletonizing the leaf. They complete their growth in from fifteen 

 to twenty days at which time they are about a third of an inch in 

 length, with a black head and a yellowish body with a black stripe 

 extending on each side of the middle line of the body, from the head 

 to the posterior end where the stripes unite. The larvae now stop 

 feeding and crawl down the trunk until some crevice is found in 

 which the next stage may be passed, or continue to the ground at 

 the foot of the tree. In some cases they drop from the limbs instead 

 of passing down the trunk. As soon as a satisfactory spot has been 

 found, the grub changes to a pupa (Fig. i,j) and in this condition 

 remains quiet for a week or ten days, after which the adult beetle 

 escapes from the pupa, to lay eggs for a second brood, the history 

 of which is the same as that of the first brood, just described, except 

 that the adults of the second brood hide during the winter and lay 

 their eggs the following spring. 



During the present year egg clusters were abundant by the fifteenth 

 of June and most of the grubs had completed their feeding and had 

 begun to crawl down the tree by the twelfth of July, though two 

 weeks later a few belated individuals were still making their way 

 downward, while beetles to lay eggs for the second brood were begin- 

 ning to appear, coming from the grubs which were first to pupate. 



The adult beetle (Fig. i, /6) is rather more than a quarter of an 

 inch long, greenish or sometimes reddish yellow in color, with two 

 black eyes and a black spot between them, on the head, three black 



