248 MISC. PUBLICATION 657, U. S. DEPT. OF AGRICULTURE 
Goes debilis Lec., the oak-branch borer, is from 11 to 15 mm. in 
length. The general color is brown, with the head, thorax, and apical 
third of the elytra clothed with reddish-yellow pubescence, while the 
basal half of the elytra is mottled with grayish pubescence. The 
larvae feed in the lateral branches of oaks in the Eastern States, often 
forming a gall-like swelling. Two years, and occasionally 3, are 
required to complete the development. 
Goes pulcher (Hald.), the living hickory borer, ranges from 18 to 
23 mm. in length. The body is dark brown, covered with yellowish 
pubescence, having the elytra clay yellow with a conspicuous darker 
band across the base and another about the middle. The larvae feed 
from 2 to - years in the trunks and branches of hickory trees through- 
out the Eastern States. A considerable portion of the mine is 
extended beneath the bark. 
Goes pulverulentus (Hald.), the living beech borer, is from 19 to 
23mm.in length. It is brown, uniformly clothed with short, whitish 
hairs, and the elytra are indistinctly barred at the middle and at the 
base, with darker pale-brown pubescence. The larva feeds in the main 
trunk, if it is ot small diameter, or in branches of various trees, chiefly 
oak. beech. ironwood, blue beech, elm, and sycamore throughout the 
Eastern States. Three or 4 years is required to complete the 
development. 
The oak sapling borer (Hammoderus tesselatus (Hald.)) is from 
20 to 23 mm. in length, dull brown. and clothed with prostrate brownish 
hairs. The elytra are covered with small spots of yellowish hairs in 
irregular rows. The larvae feed in the base and roots of small oak 
and, rarely, in chestnut saplings from 14 inch to 2 inches in diameter, 
from Pennsylvania south and thr arene the Middle West. 
Goes tigrinus (Deg.), the white- oak borer, is the largest species of 
the genus Goes, ranging from 25 to 30 mm. in length. It is ers 
brown, but rather densely clothed with white pubescence (fis 5223p 
54, B). The basal third of the elytra is roughened with small. pide, 
elevated points. The larva feeds in the trunk of trees from 2 to 12 
inches in diameter and in branches of larger white oak trees in the 
eastern part of the United States. Four or 5 years is required to 
complete the development from egg to adult. 
The old house borer ( Hylotrupes bajulus (1.)), a flattened, slaty- 
brown beetle from 10 to 20 mm. in length, is sometimes found boring in 
the timbers of old houses. The thorax is rounded, with several smali 
tubercles at the side, and has a black polished line and spots on the 
disk. The wing covers are marked with whitish spots forming two 
irregular bands near the middle ( fig.52, 4). Itisa European species 
introduced into this country and ye early becoming more abundant 
throughout the United States, attacking only coniferous wood. The 
larva can be recognized by the thin texture of the skin, and the fact 
that the head is wider than long, the apex of the mandible is rounded, 
and there are three ocelli on each side of the head. The prothorax is 
smooth and shining and the ampullae reticulated, approaching tuber- 
culate. Legsare present. It feeds in dry, seasoned, coniferous woods, 
filling the extensive galleries with loose granular frass. 
Adults appear late in summer and deposit the eggs in season checks 
or irregularities of the wood. The resulting larvae feed from a few 
to many years in the dry sapwood, until it is completely destroyed. 
