LONG HORNED BEETLES. 127 



infested ; it also occurs in the pear, hawthorns and some other 

 plants. The beetle appears late in June or July, and is ndt found 

 in large numbers in our state. Prof Saunders gives the follow- 

 condensed description of this beetle and its work : 



"The Round-headed Apple-tree Borer is a native of America 

 whose existence was unrecorded before 1824, when it was de- 

 scribed by Thomas Say. The year following, its destructive 

 character was observed about Albany, ;\. Y. It is now widely 

 and generally distributed, and probably it was so at that time, 

 although unnoticed, since it inhabits our native crab and thorn 

 bushes, and also the common June-berry, Amelanchier canadensis. 

 While preferring the apple, it also makes its home in the quince, 

 pear and mountain-ash. In its perfect state it is a very handsome 

 beetle, about three-fourths of an inch long, cylindrical in form, 

 of a pale-brown color above with two broad creamy white 

 stripes running the whole length of its body ; the face and under 

 surface are hoary-white, the antenna? and legs are gray. The 

 females are larger than the males and have shorter antennae. 

 The beetle makes its appearance during the month of June and 

 July, usually remaining in concealment during the day, and 

 becoming active at dusk. 



"The eggs are deposited late in June, in July and most :>f 

 August, one in a place, in an incision made by the female in the 

 bark of the tree near its base. Within two weeks the young 

 larvae are hatched, and at once commence with their sharp man- 

 dibles to gnaw their way to the interior. 



"It is generally conceded that the larva is three years in 

 reaching maturity. The young ones lie for the first year in the 

 sap-wood and inner bark, evcavating flat shallow cavities, about 

 the size of a silver dollar, which are filled with their saw-dust 

 like castings. The holes by which they enter being small, they 

 are soon filled up, though not until a few grains of castings have 

 fallen from them. Their presence may, however, be detected in 

 young trees from the bark becoming dark-colored, and some- 

 times dry and dead enough to crack. Through these cracks 

 some of the castings generally protrude and fall to the ground in 



