COLEOPTERA. 279 



in length; greenish-blue; elytra, the extremities excepted, rus- 

 set-yellow; base of the antennae, pectus, and a greater portion 

 of the feet of the same colour: ends of the elytra blackish-blue. 

 It frequents the neighbourhood of water, and is more particu- 

 larly found in the north of France, Germany and Sweden(l). 

 Sometimes the exterior palpi are terminated by a thicker trian- 

 gular joint, or one resembling a reversed cone; the head, directly 

 behind the eyes, is suddenly narrowed, and has a triangular form, 

 or that of a heart. 



Some, in which the body is flattened, placed by Fabricius among 

 his Galeritae, have all the joints of the tarsi entire, the thorax cord- 

 ate and posteriorly truncated, and the mandibles as well as the max- 

 illae of an ordinary length or but slightly salient. 



The first joint of the antennae forms a reversed and elongated cone. 

 The ligula is square, and its paraglossae are usually as long as itself; 

 the middle of the eraargination of the mentum is furnished with a 

 tooth. These Carabici, of which the species indigenous to Europe 

 are found under stones, bark, and most commonly in the vicinity of 

 water, form the three following subgenera. 



Zuphium, Lat. 



First joint of the antennae at least as long as the head; exterior 

 maxillary palpi much elongated(2). 



Polistichus, Bon. 



First joint of the antennae, as in the following subgenus, shorter 

 than the head; maxillary palpi of the ordinary length; second, third 

 and fourth joints of the tarsi, those of the two anterior legs particu- 

 larly, short and nearly orbicular; the ligula terminated superiorly by 

 a straight margin, its paraglossae salient, and resembling narrow, 

 arcuated and pointed auriculae(3). 



Helluo, Bon. 



This subgenus is only distinguished from Polistichus by the en- 

 tirely corneous ligula, which is rounded at the superior extremity, 



(1) The Odacantha tripustulata, Fab., is a species of Notoxus. 



(2) Galerita olens, Fab.; Clairv. Entom. Helv. II, xvii, A, a; Hist. Nat. des Co- 

 leop. d'Eur., fasc. II, x, 3. 



(3)' Galerita fasciolata, Fab. ; Clairv., lb., B, b; Hist. Nat. des Coleop. d'Eur., lb., 

 4; Polistichus discoideus, lb. 5. See the Spec, des Coleop., Dej. I, p. 194. 



