47 



than it really is. It is of a dark brown color and is pro- 

 vided with, strong black jaws, usually more or less con- 

 cealed by a membranous upper lip. The next division 

 ■of the body is largest and widest, measuring about twice 

 as wide as long ; it is covered above with a rather firm, 

 yellowish brown crust forming a sort of shield, and 

 bounded at each side by a short groove. The succeeding 

 •divisions becoming rapidly narrower to the fourth from 

 which the diameter changes but little to the last but one. 

 The term,inal division of the thirteen composing the body 

 is small and conical. The grub has no legs. 



The winter is passed in the grub state, but the next 

 -spring the pupa stage is assumed in the burrows. Those 

 obtained at Frankfort are one half inch long, rather 

 slender, the abdomen being somewhat produced but 

 terminating bluntly. Limbs and wing-pads folded againt 

 the body as usual in such pupae. The antennae extend 

 around the femora of the two first pairs of legs, then turn 

 forward so that the tips lie above the free mouth parts. 

 On the head and thorax are a number of short black 

 hairs arranged symmetrically, of which a series of four 

 ■or five below the antenna of each side and others along 

 the front division of the thorax are conspicuous. Divis- 

 sions of the thorax with a median longitudinal channel 

 above. Abdomen distinctly segmented, margined, each 

 divisionwith tubercles with small minute spines project- 

 ing backwards. Tip of abdomen with a number of short 

 hairs on each side. This stage lasts but a short time, 

 when the final moult of the kin takes place and the 

 adult beetle comes forth to lay eggs on the bark of trees 

 for a fresh lot of grubs. 



The beetle is a small slender insect, rather obscure in 

 its colors, and so shy and retiring of habit that it is not 

 often seen. It measures about 0.50 inch in length. Its 

 color is brown with a grayish cast. It is marked with 



