COLEOPTERA. 331 



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, 8cc. 



PjEderus, 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 point. 



In some of them, P^ederus, Lat. the penultimate joint of the 

 tarsi is bifid(l). 



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(2). 



Ev^sthetus, Grav. 



The antennse also inserted before the eyes, but hardly longer than 

 the head, and almost entirely moniliform; the body but slightly elon- 

 gated, and the head as wide as the thorax(3). 



The L. elongatum (S. elongatus, L.) is figured by Panz , lb. 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. 



(1) M. Lefevre has brought an Insect from Sicily allied to Psederus, but evi- 

 dently 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 an- 

 tenna: 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 Procirrcs, and 

 this species shall be dedicated to the zealous naturalist who discovered it. 



(2) See Latr., Gener. Crust, et Insect., I, p. 290, etseq.; and Gyllenh., Insect. 

 Suec. I, pars II, p. 372. 



(3) Evaesthetus scaber, Grav.; Germ., Faun. Insect. Europ. VII, 13; Gyll., lb., 

 p. 461. A new species has been discovered by M. Blondel, Jun. in the vicinity 

 of Versailles. 



