496 



COLEOPTERA 



Fig. 482. 



trunks of hickory trees, the worm often working its way out of 

 the wood after it has been made into articles of furniture or 



carriages. The Ase- 

 mum mcestum Halde- 

 man (Fig. 483 ; a, a, 

 larva; b, pupa), we 

 have found in all its 

 stages tinder the bark 

 of oaks, early in May. 

 The larva is footless, 

 white ; the head is 

 rather large, white, 

 with strong black jaws 

 convex on the outer side ; the body is uniform, gradually 

 diminishing in width posteriorly ; it is .60 of an inch long. 

 The pupa is .44 of an inch long. The beetle is about half an 

 inch long and is dark brown, with very thick femora. *^fl 

 It flies the last of May. I have received a larva of this 1 

 species from Dr. Shimer, which was found by him boring H 

 in the grape-vine. The genus CalUdium has antennae rig. 48t 

 of moderate length, a broad rounded prothorax, and a flattened 

 body behind. The larvae are unusually flattened, with a broad 



horny head, small stout man- 

 dibles, and six small legs, and 

 they are said to live in thi& 

 state two years. CalUdium 

 antennatum Newman is en- 

 tirely blue ; it bores in pine 

 wood and in red cedar, min- 

 ing under the bark. C. semi- 

 circularfs Bland (Fig. 484) is 

 Fijr - 483 reddish brown, with a white 



band on each elytron, enclosing a rather large, semicircular, 

 black spot. It was discovered in Pennsylvania. 



Clytus has a more cylindrical bod}', and spherical prothorax, 

 besides being beautifully banded with golden, on a dark 

 ground. Clytus speciosus Say injures the maple. We have 

 taken the beetle on the summit of Mount Katahdin in Maine. 

 The beetle lays its eggs in July and August, and the larvae 



