90 INSECTS INXUmOUS TO VEGETATION. 



appeared in Griffith's translation of Cuvier's " Animal King- 

 dom," under the name of Clytus Haijii. The beautiful Clytus, 

 like the other beetles of the genus to which 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 antennae and the eyes reddish black ; the thorax is 

 black, with two transverse yellow spots on each side; the 

 wing-covers, for about two thuds of their length, are black, 

 the remaining third is yellow, and they are ornamented with 

 bands and spots arranged in the following manner : a yellow 

 spot on each shoulder, a broad yellow curved band or arch, of 

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

 the w^ing-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 August. 

 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 w^ood, up and down the ti'unk. 

 In order to check their devastations, they should be sought for 

 in the spring, when they will readily be detected by the saw- 

 dust 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 

 pollen, which they devour. During the month of September, 

 the painted Clytus, Clytus pictus* is often seen in abundance, 

 feeding by day upon the blossoms of the golden-rod. If the 

 trunks of our common locust-tree, Robi?iia pseudacacia, are 

 examined at this time, a still greater number of these beetles 



* Leptura picta, Drury ; Clytus flexuosus, Fabricius. 



