222 THE CANADIAN ENTOMOLOGIST. 



short white hairs, which often become rubbed off and disappear ; the 

 thorax is armed on each side with a thick triangular spine ; the antennae 

 are many-jointed, and about the same length as the body in the male, 

 while in the female they are about twice that proportion. The size of the 

 beetle varies from less than half an inch in the male to over three-quarters 

 of an inch (exclusive of the antennae) in the female. The larva is a large 

 thick white grub, destitute of legs, divided into a number of well-marked 

 segments ; the head armed with a strong pair of jaws. The larva infests 

 the Pine, after the timber has been cut or newly fallen, and often causes 

 serious injury to it by boring large oval-shaped holes which extend for 

 long distances through the interior of the log. The perfect insects appear 

 in June, and are sometimes very abundant ; we have occasionally found 

 them swarming in great numbers on fallen pine trees. The insect is com- 

 mon throughout Canada and the neighbouring States. 



2. Clytus speciosus Say (genus Glycobms Lee.) — The Maple Borer. — 

 The colours of this remarkably handsome insect are deep velvety black 

 and bright yellow. The figure represents its shape and markings so 

 accurately that further description is unnecessary ; the size depicted, how- 

 ever, is decidedly above the average. This wasp-like beetle is not very 

 abundant, but may occasionally be found on Maple trees, which its larvae 

 infest both when growing in the forest and also when cut into cord-wood. 

 The eggs are laid by the parent beetle on the trunk of the Sugar-maple 

 during the middle of summer ; when hatched the grubs penetrate through 

 the bark and make long winding borings through the solid wood. Occa- 

 sionally they are very destructive to young Maple trees, but on the whole 

 they are not sufiiciently numerous to be objects of dread. 



J. Orthosoma cylindricum Fab. — A Pine Borer.— This large beetle 

 is the commonest and best known of our wood-borers ; its habit of flying 

 through open windows into lighted rooms during the warm evenings of 

 July, usually to the great alarm of the inmates, has caused its appearance 

 to be very familiar to every one. It is one of our largest beetles, measur- 

 ing oftentimes as much as an inch and a half in length by over a third of 

 an inch in breadth. Its general colour is a chestnut brown, approaching 

 black on the head and antennae. The thorax is armed with three" sharp 

 spines on each side ; each wing-case has three slightly elevated ridges 

 running lengthwise for nearly the whole length ; the eyes, which are 



