LONG-HORNED WOOD-BORERS. 
149 
especially the Lepturides, are found upon flowers in the day time, and 
in the full light of the sun. 
The larvae are oblong, straight, moderately firm, sordid or yellowish- 
white grubs, chiefly distinguished by the depth of the incisions between 
the segments of the body, giving to them a strongly crenulated or 
wrinkled appearance. They are usually a little tapering from before 
backward, the first or prothoracic segment being larger than the others, 
but never excessively developed as in some of the wood-boring larvae of 
the Buprestidae. 
The head is small and more or less sunken in the prothorax, but the 
larvae of the Lepturides are exceptional in this respect, their heads being 
large and flattened and as broad as the pro-thorax. 
The majority have six very small feet, which, in some, are scarcely 
more than rudimental, and the larvae of the sub-family of Lamiides are 
distinguished from nearly all the others by being wholly footless the 
place of feet being supplied by little callosities. 
These larvae, together with those of the short-horned tribe last de- 
scribed, constitute pre-eminently the wood-borers of the Coleopterous 
order. Though vastly surpassing the former in size and in the number 
of species, they would seem to be much inferior to them in the number 
ot individuals, and, therefore, though a iew of them have been very in- 
jurious to cultivated or ornamental trees, they have never been known 
to produce such extensive destruction of timber as has been effected by 
the lame of the diminutive but prolific Scolytidae. A remarkable ex- 
ception, however, to this statement occurred a number of years ago, in 
the almost total destruction of the locust tree ( Iiobinin pscudctcuciu ) 
throughout all the Northern States, by the larva} of the Locust-borer, 
Clytus robinicv, of Forster. This destruction did not occur in all places 
at the same time, but was extended mostly over the ten years between 
1855 and 18G5. 
Upwards of 8000 species of longicorn beetles are known to exist in 
European cabinets. The Smithsonian catalogue of the year 1853 con- 
tains the names of 431 N. American species. In Dr. LeConte’s New 
Species of N. A. Coleoptera, published in 1873, eighty-nine additional 
species are described, and in the intervening twenty years a considerable 
number of N. A. species had been described by Dr. LeConte and others, 
both in this country and in Europe. 
Some of the characters in the following tables may require explana- 
tion. It will be seen that some of the largest Lamiides are distinguished 
by a cicatrix or scar at the end of the first joint of the antennae. In 
these species the pedicel, or stout basal joint, appears as if cut off' ob- 
liquely at the end, and this sloping part is euclosed by a little ridge or 
carina, and its surface differs from that of the surrounding parts by be- 
