70 INSECTA. 
sibly rounded behind; and where the thorax is almost cylindrical or 
square, compose our genus Laeria properly so called *. 
That, which I have named Sraryra, consists of species, similar at 
a first glance to the Agree, of the family of the carnivorous Pentame- 
rous Coleoptera. Here the antenne are filiform and composed of 
almost cylindrical joints, the last of which is very long and tapers toa 
point. The head projects anteriorly, and is strongly and abruptly 
narrowed behind the eyes. The thorax is longitudinal, oval and 
truncated at both ends. The sutural extremity of the elytra termi- 
nates in a tooth or spine f. 
We refer, with some hesitation, to the same tribe our genus Hemi- 
pEPpLUs—Fam. Nat.du Régne Anim., p.398—where the antenn are 
filiform, almost granose, short and geniculate, with the second and 
third joints shorter than the following ones; where the body is linear 
and depressed; the head cordiform, somewhat wider posteriorly than 
the thorax; the eyes are entire and oval; the thorax forms a long 
square, slightly narrowed posteriorly; the elytra are truncated at the 
end, and do not cover the posterior extremity of the abdomen. The 
maxillary palpi are salient, and terminated by a larger and triangular 
joint. ‘The legsare short. ‘This genus does not belong to the Tetra- 
mera, as I formerly thought, but to the Heteromera. The penulti- 
mate joint of the tarsi is bilobate. I have established this division on 
an Insect, found in Scotland in a shop, which was sent to me by Dr. 
Leach. 
The second tribe, that of the Pyrocuromss, approaches the first in 
the tarsi and the anterior elongation and narrowing of the body, but 
it is flattened, and the thorax is almost orbicular or trapezoidal. The 
antennee, at least in the males, are pectinated or plumous—en pa- 
nache; the maxillary palpi are slightly serrated, and terminated by 
an elongated and almost securiform joint; the labial palpi are filiform ; 
the abdomen is elongated, entirely covered by the elytra, and rounded 
at the extremity. 
These Heteromera, which are found in the spring in woods, and 
whose larvee live under the bark of trees, form the genus 
Pyrocuroa, Geoff. Fab. Dej—Lamryris, Lin, 
Those species, in which the antenne are almost as long as the body 
in the males, and give off long bearded filaments; where the eyes, in 
the same sex, are large and approximated behind; where the thorax 
is in the form of a truncated cone, or is trapezoidal; and, finally, 
where the body is proportionally narrower and more elongated as 
well as the legs, constitute the genus 
DeEnproipEs, Lat.—Poconocerus, Fisch.t 
Those, in which the antennz are simply pectinated and shorter, in 
* See Fabricius, Olivier, Latreille and Schenherr. 
+ See Encyc. Méthod., article Statyre. 
¢ I had established this genus on an Insect from Canada, which formed part of 
