416 INSECT A. 



PINOPHILUS, Grav. 



Palpi filiform ; but the antennae inserted before the eyes, outside of 

 the labrum, and near the exterior base of the mandibles *. 



LATHROBIUM, Grav. P^DERUS, 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, 



PJSDERUS, 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 \. 



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. 



f See Gravenhorst, Coleop., Microp., and Lat. Gener. Crust, et Insect., I, 289. 

 The L. elongatum (S. elonyatus, L.) is figured by Panz., Ib. IX, 12; Staphylinus 

 hnearis, Oliv., Col. Ill, 2, iv. 38. See also Gyllenli., Insect. Suec. I, pars I, p. 363, 

 et seq., and the Catalogue of Count Dejean, p. 24. 



I M. Leftvre has brought an Insect from Sicily allied to Paederus, but 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 antennae is 

 ovoido-conical and larger than 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. 



