THE MONTHLY BULLETIN. 



235 



THE FLAT-HEADED APPLE-TREE BORER. 



Chrysohothris femorata Fab. (Family Buprestidse). 

 (Fig. 232.) 



General Appearance. — The adult beetle is oblong, flattened and 

 the body color metallic greenish black. On each wing cover are three 

 raised longitudinal lines which are traversed by two brass-colored 

 depressions, dividing the surface into three nearly equal dark areas. 

 The under side is metallic copper, and the feet green. The eggs are 



Fig. 232. — The larva; of the flat-headed apple-tree 

 borer (Chrysobothris femorata Fab.) and iheir work 

 on young apple trees. (Original.) 



yellow, ribbed, but one fiftieth of an inch long and oval in form with 

 one end flattened. The mature larvae are dark yellow and without 

 legs. The anterior portion, just behind the head, is enormously 

 enlarged and flattened, giving the insect its common name, though in 

 reality the head proper is very small and easily distinguished by the 

 black jaws. The pupa is first white, but becomes darker until it 

 assumes the color of the mature beetle. 



Life History. — The eggs are fastened with a cement in the crevices 

 and under the loose scales of the bark, either singly or in groups. After 

 hatching the small grubs bore into the sap wood upon which they 



