96 INSECTA. 
Puatryrus, Herbst.—Bosrtricuus, Fab, 
The antennz, shorter than the head, fold under the eyes and ter- 
minate ina very large club without distinct annuli. The body is li- 
near, and the head cut vertically before; the eyes are almost round 
andentire. The thorax is oe 1 on each side to receive a por- 
tion of the anterior thighs; the two anterior tibize are divided on their 
posterior face by transverse Paes es; the tarsi are long and very slen- 
der, their first joint being much elongated. The two posterior legs 
are placed very far back * 
The others have large and very apparent palpi of unequal lengths. 
Their body is depressed and narrowed before; their antennze some- 
times consist of two joints, the last of which is very large, flattened, 
and almost triangular or nearly ovoid, and sometimes of ten, and are 
entirely perfoliate. 
The labium is large; the elytra are truncated, and tarsi short, with 
all the joints entire. These Insects are all foreign to Europe, and 
compose the genus 
Paussus, Lin., Fab. 
Those in which the antenne consist of but two joints, with the last 
large and compressed, form the subgenus 
Paussus proper. 
A species—P. bucephalus, Schoenh., Synon. Insect., I, 3, App. 
VI, 2—in which the head resembles two simple eyes; where 
the eyes are small and but slightly prominent, and where the an- 
tenn, hardly longer than the head, are laid on its anterior face, 
and terminated in an acuminated joint, constitutes the genus 
Hylotorus of Dalman—Anal. Entom., p. 102 +. 
Those in which the antennz consist of ten entirely perfoliate joints 
form the subgenus 
CrRAPTERUs, Swed. } 
2. A second section will comprise those Xylophagi, whose antennz 
consist of but ten jcints, and in which the palpi, at least those of the 
maxille, do not gradually taper to a point, but are of equal thickness 
throughout, or dilated at the extremity. The joints of their tarsi are 
always entire. 
We will divide them into principal genera, according to the mode 
in which the antenne terminate. The three last joints form a perfo- 
liate club in the first, or 
* Lat., Gener. Crust. et Insect. II, p. 277. M. Dalman has figured a species— 
flavicornis ’, ? Fab.—enclosed in amber. 
“+ See Lat., Gener. Crust. et Insect., III, p. 1, and Scheenherr, Synon. Insect. I 
3, App. vi, 1. 
+ Lat., Gener. Crust. et Insect., III, p. 4. 
