54 



The J^esser Orthosoma — Orthosoma hrunneum. 



This is a long-horned beetle of a rather flattened form, about an inch and a-quarter 

 long and about one-third of an inch broad — see fig. 21. It is 

 of a deep red colour, darker anteriorly ; on each side of the 

 thorax there are three sharp teeth and several slightly elevated 

 lines on the wing-covers. The larva is about an inch and a- 

 quarter long, cylindrical in form, and of a whitish colour. The 

 beetles are very common during the months of J une and J uly, 

 and the larvae are frequently met with in decaying pine stumps. 

 Since they feed chiefly on decaying wood they do but little harm . 



There are several other smaller species of longicorn beetles 

 which injure pine trees, but as their habits are very similar to 

 those of the larger species to which reference has been made, it 

 will perhaps be unnecessary to speak further of them now. 



The Virginian Buprestis — Chalcophora virginiensis. 



Among the Buprestidse, or saw-horn beetles, the Virginia^^ 

 buprestis {Chalcophora virginiensis) will first claim attention. 

 This is a large and handsome beetle, which measures from eight- 

 tenths of an inch to an inch or more in length. It is of an ^^S- 

 oblong form, and brassy or copper-coloured, sometimes almost 



black. The upper side of the body is roughly punctated, the top of the head deeply 

 indented, on the thorax there are three elevated and polished thick black lines, and on each 

 wing-cover two small, square, impressed spots, a long, elevated, smooth, black line near 

 the outer margin and another near the inner margin, with several thinner, shorter lines 

 between them. The under side of the body has a coppery lustre, and is sparingly covered 

 with short whitish down. It appears towards the end of May, throughout June, and 

 occasionally later. The larva is a flat-headed white grub, with its anterior segments very 

 much enlarged, which bores into the sap-wood of the white pine, and sometimes girdles 

 the tree ; its track begins as a narrow shallow groove on the surface of the wood, increasing 

 in breadth as the larva grows, following an irregular course, and terminating in a large 

 hole, at which point the grub changes to a chrysalis. 



— The Liberated Buprestis — Chalcophora liberta. 



This is a closely allied species, much resembling the Virginian buprestis in all its 

 stages. The beetle is about three-quarters of an inch long, of a brassy or coppery hue, 

 sometimes glossed with green, in other specimens nearly black. The thorax and wing- 

 covers are deeply furrowed by irregular longitudinal depressions. It differs from Vtr- 

 f/iniensis in the width and character of the raised lines on the wing-covers. 



DiCRRCA TeNEBROSA. 



Is another member of the family of Buprestians which is an enemy of the white 

 pine. This species in the larval state mines under the bark of the tree, where it 

 occurs as a medium-sized whitish grub, with a flat head, brown jaws, and enlarged anterior 

 segments. The beetle occurs late in the summer, is of an ashy-bronze colour, with the 

 thorax and elytra more or less furrowed, and densely pitted. The under surface is copper 

 coloured. This insect is found in most parts of Canada and the Northern United 

 St tes. 



The Golden Buprestis— Buprestis striata. 



This s necies also deserves mention here. It is a very handsome beetle, from six to 

 seven-tenths < f an inch long, of a coppery-red colour, with a broad bluish-green stripe 

 on each wing-oover, which varies in brilliancy in different specimens. There are four 

 raised smooth lines on each wing-case, and a wide, shallow groove along the middle of 



