LONG-HORNED WOOD-BORERS. 
155 
I lie Stenaspini resemble tiie Clytini in their convex form, the tho- 
rax in both groups being almost globular, but are readily distinguished 
by their pointed scu tel lura and their style of coloration, being some- 
times velvety-black, with a few large red spots, and sometimes almost 
wholly red or purple, but with the legs and an term* black. The group 
is named from the genus Stenaspis , Serv., a word expressive of the nar- 
row and pointed form of the scutellum. The species are usually of 
rather large size ; but one of the most common, the Batyle suturalis, 
Say, is less than halt of an inch in length, almost wholly red, and 
clothed with short erect hairs. The group contains about thirty spe- 
cies, many of which, however, are not found north of Texas. 
Sub-family LEPTUKIDES. 
The Lepturides are named after the genus Leptura, of Linnmus, a 
term derived from the Greek /£-r«c — slender or attenuated, in allusion to 
the slender and tapering form of most of the species. 
They are distinguished from the other Longicornes by their round 
eyes, sometimes eutire, but usually with a small notch or indentation ; 
by the head narrowed behind the eyes, and the thorax narrowed in 
front, the union of these two parts giving the appearance of a neck of 
greater or less length ; and by the anterior cox* being of an angular 
jFi g .76.j form and projecting below the level of the breast. 
The base of the elytra is usually more or less elevated 
above the level of the thorax. The middle cotyloid 
cavities are always open, and the eyes are almost 
always finely granulated. Their form is usually some- 
what tapering behind, and as a general rule they are 
smaller and more active than the other Longicorus, 
and many of them fly by day, whereas most of the 
Lougicorn beetles are crepuscular. Whilst most 
Lougicorns are found upon the trunks of trees, and often near the roots, 
many of the Lepturides frequent flowers, especially those of umbellife- 
rous plants. 
It is in this sub-family that the species occur, which have very short 
or very narrow elytra. But in these cases the wings are not folded 
under them, as they are in the short-winged Staphylinidie, but lie at 
their full length upon the abdomen. The larva) differ from those of 
other Lougicorns in having the head as wide as the body. 
This group is usually placed at the end of the Longicornes, but we 
retain them here ou account of their close alliance with t lie preceding 
sub-family of Oerambycides, with which they are united by Lacordaire. 
Lrptuka After 
Westwood. 
