41G 
INSECTA. 
PiNOPHiLtrs, Grew. 
Palpi filiform ; but the antennae inserted before the eyes, outside of 
the labrum, and near the exterior base of the mandibles * * * § . 
Lathrobium, Grav. — PjEderus, Fab. 
Palpi suddenly terminated by a pointed and frequently indistinct 
joint, much smaller than the penultimate ; those of the maxillae much 
longer than the labials ; the antennae inserted as in Pinophilus ; 
anterior tarsi strongly dilated in both sexes ; length of the last joint 
of the four posterior tarsi almost equal to that of the four preceding 
ones taken together f . 
In the second section, that of the Longipalpi, where the head is 
also completely exposed, but the labrum entire, the maxillary palpi 
are nearly as long as the head, and have a clavate termination formed 
by the third joint, with the fourth concealed or but slightly visible, 
and in the figure of a small point, terminating the club when appa- 
rent ; the preceding joint considerably enlarged. These Insects live 
along the shores of rivers, &c, 
PasDERUs, Fab. 
The antennae inserted before the eyes, either filiform or gradually 
increasing in thickness, and longer than the head ; body long and 
narrow; mandibles dentated on the internal side, and terminating in 
a simple joint. 
In some of them, P.ederus, Lat . — the penultimate joint of the 
tarsi is bifid J. 
P. riparius ; Staphylinus riparius, Panz., Faun. Insect, Germ. 
IX, 2. About three lines in length ; very narrow and elongated ; 
fulvous ; head, pectus, superior extremity of the abdomen and 
knees, black ; elytra blue. Very common in wet sand, under 
stones, among the roots of trees, &c. 
In the others, Stilici, Lat . — all the joints of the tarsi are entire §. 
* Pinophilus latipes, Grav., North America. In his Mantissa it is united to the 
following genus. 
t See Gravenhorst, Coleop., Microp., and Lat. Gener. Crust, et Insect., I, 2S9. 
The L. elongatum {S. elongatus, L.) is figured by Panz., Ib. IX, 12; — Staphylinus 
linearis, Oliv., Col. Ill, 2, iv. 38. See also Gyllenh,, Insect. Suec. I, pars I, p. 363, 
et seq., and the Catalogue of Count Dejean, p. 24. 
X M. Lefevre has brought an Insect from Sicily allied to Pjederus, hut evidently 
forming a new genus. The fourth and last joint of the maxillary palpi is here very 
distinct, and gives them a clavate termination. The last joint of the antennfe is 
ovoido-conical and larger tlian the penultimate. The head is connected with the 
thorax by an elongated pedicle, on a level with the former at its origin. The thorax 
is narrow and elongated. The two anterior tarsi are greatly dilated ; the first joint 
of the others is very long, and their penultimate appeared to me emarginated or bifid. 
I will distinguish the genus by the name of Procirkus, and this species shall be 
dedicated to the zealous naturalist who discovered it. 
§ See Latr., Gener. Crust, et Insect,, I, p. 290, et seq. ; and Gyllenh., Insect. 
Suec. I, pars II, p. 372. 
