f^ INSECTA. 



sibly rounded behind ; and where the thorax is almost cylindrical or 

 square, compose our genus Lagria properly so called*. 



That, which I have named Statyra, consists of species, similar at 

 a first glance to the Agree, of the family of the carnivorous Pentame- 

 rous Coleoptera. Here the antennae are filiform and composed of 

 almost cylindrical joints, the last of which is very long and tapers to a 

 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- 

 PEPLUs — Fam. Nat. du Regne Anim., p. 398 — where the antennae 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 legs are 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 Pyrochroides, 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 

 antennae, 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 larvae live under the bark of trees, form the genus 



Pyrochroa, Geoff. Fab. Dej. — Lampyris, Lin. 

 Those species, in which the antennae 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 



Dendroides, Lat. — Pogonocerus, Fisch.\ 

 Those, in which the antennae are simply pectinated and shorter, in 



* See Fabricius, Olivier, Latreille and Schcenherr. 



^ See Encyc. Method., article Statyre. 



X I tad established this geaus on an Insect from Canada, which formed part of 



