102 COLEOPTERA. 



and accurately represented by the pencil of Lesueur, in Say's 

 " American Entomolog}^," and, more recently, a description 

 and figure of it have appeared in Griffith's translation of 

 Cuvier's " Animal Kingdom," under the name of Cli/tus 

 Hayii. 



The beautiful Clytus, like the other beetles of the genus 

 to Avhich it belongs, is distinguished from a Callidium by its 

 more convex form, its more nearly globular thorax, which 

 is neither flattened nor indented, and by its more slender 

 thighs. The head is yellow, with the antenna3 and the eyes 

 reddish black ; the thorax is black, with two transverse 

 yellow spots on each side ; the wing-covers, for about two 

 thirds of their length, ai'e black, the remaining third is 

 yellow, and they ax'e ornamented with bands and spots 

 arranged in the following manner : a yellow s^sot on each 

 shoulder, a broad yellow curved band or arch, of which the 

 yellow scutel forms the key-stone, on the base of the wing- 

 covers, behind this a zigzag yellow band forming the letter 

 W, across the middle another yellow band arching back- 

 wards, and on the yellow tip a curved band and a spot of a 

 black color ; the legs are yellow ; and the under side of the 

 body is reddish yellow, variegated with brown. It is the 

 largest known species of Clytus, being from nine to eleven 

 tenths of an inch in length, and three or four tenths in 

 breadth. It lays its eggs on the trunk of the maple in July 

 and Aufjust. The grubs burrow into the bark as soon as 

 they are hatched, and are thus protected during the winter. 

 In the spring they penetrate deeper, and form, in the course 

 of the summer, long and winding galleries in the wood, up 

 and down the trunk. In order to check their devastations, 

 they should be sought for in the spring, when they will 

 readily be detected by the sawdust that they cast out of their 

 burrows ; and, by a judicious use of a knife and stiff wire, 

 they may be cut out or destroyed before they have gone 

 deeply into the wood. 



Many kinds of Clytus frequent flowers, for the sake of the 



