CARABICI. INSECTS. 251 



shaped spots and a white band on each wing-case, and many im- 

 pressed dots near the suture/Woods in Europe. Shaw, vi. pi. 31. 



TRIBE II. CARABICI. 



Mandibles rarely much dentated ; labium generally projecting ; 

 radical joint of the labial palpi incorporated with their support, 

 so that these organs appear to have but three joints ; extre- 

 mity of the jaws simply arched or hooked, and sometimes al- 

 most straight, without an articulated spine. 



I. Exterior palpi not subulate at its termination. 



1. Internal side of the two anterior legs strongly notched. 



A. Posterior extremity of the elytra generally truncated. 



Truncatipennes. 



a. Hooks of the tarsi simple. 



Gen. ANTHIA, HELLUO, GRAPHIPTERUS, APTINUS, BRACHINUS, CATA- 

 SCOPUS, GALEIUTA, DRYPTA, ZUPHIUM, POLISTICUS, CORDISTA, 

 CASNONIA, ODACANTHA. 



b. Hooks of the tarsi pectinated below. 



Gen. AGRA, CYMINDIS, CALLEIDES, PLOCHIONE, LEBIA, LAMPRIAS, DRO- 

 MIA, DEMETRTAS. 



B. Posterior extremity of the elytra entire, or simply sinuous. 



a. Tarsi (generally short) similar ot slightly different in both sexes; under point des- 

 titute of brush, and simply hairy or ciliated. 



JBijjartiti* 



Gen. ENCELADUS, SJAGONA, CARENUM, SCARITES, ACANTHOSCELES, (Sea- 

 rites ruficornis, Fab.); OXYSTOMA, (S. cylindricus^ Dej.) ; PASIMACUS, CLI- 



VINA, DlSCHIRIA, OZ-^ENA, MORIO, ARISTUS, APOTOMUS. 



b. The first joints of the two or four anterior tarsi in the males sensibly larger, fur- 

 nished below with papillae or hairs, sometimes forming lines, at others a continu- 

 ous brush. 



Thoracici. 



* Four anterior tarsi in the males dilated. 



Gen. ACINOPUS, HARPALUS, OPHONE, STENOLOPHUS, TRECHUS, BLE- 



MUS, MASOREUS. 



** The two anterior tarsi of the males only dilated, 

 f Hooks of the tarsi dentated. 



Gen. TAPHRIA, CALATHA, DOLICHUS, L^EMOSTHENA. 

 |f Hooks of the tarsi simple or without dentations. 

 No strangulation or abrupt depression at the origin of the head. 



a. Dilated joints of the anterior tarsi in the males heart-shaped, or in the form of a 

 reversed triangle, and not forming a square or orbicular plate. 

 Gen. SPHODRUS, ZABRUS, AMARUS, PELOR, PSEUDOMORPHUS, PGECILUS, 

 MOLOPS, CEPHALOTES, STOMIS, PLATYSMA, PERCUS, ABAX, OMA- 

 SEUS, STEROPES, PTEROSTICHUS, COPHOSIS. 



a a. Dilated joints of the anterior tarsi of the males, except the first, almost square 

 or orbicular, and composing, united, a palette having one or other of these forms. 



O. Mandibles always pointed ; labrum not vaulted at the base ; one or two teeth in 

 the notch of the chin. 

 Gen. ANCHOMENUS, PLATYNUS, AGONUM, CALLISTA, CHL^NIUS, CODES. 



OO. Mandibles generally very obtuse and notched at the end ; base of the labrum 

 arched ; notch of the chin without teeth. 



