CARABIDAE. 2t 



externally, the anterior more dilated, the apical angle somewhat 

 prolonged, inner side deeply emarginate, the inner spur above 

 the emargination. 



The first three joints of the anterior tarsi are slightly dilated 

 in the male. 



But. one genus, Morio, is represented by a single species, M. 

 Georgise, in the Southern States. The head is suddenly and 

 slightly constricted behind. It is commonly found under Inirk, 

 and is an elongate, shiniug black insect, with deeply striate elytra. 



Tribe XVI.— BEIW[BIDIIi\I. 



Antennae slender, arising under a slight frontal margin, the 

 first two or often the first only glabrous, third joint sometimes 

 not longer than the second. Head rarely narrowed behind the 

 eyes to a neck ( Thalassobius), with two supra-orbital setas. Eyes 

 round prominent, very narrowly separated beneath from the 

 mouth (absent in Anillus and Scotodipnua). Clypeus usually 

 moderately prolonged and with an erect seta on each side. 

 Labrum transverse, sexsetose in front, rarely quite small (certain 

 Bembidia). Mandibles feebly arcuate, acute at tip and with a 

 setigerous puncture externally. Maxillai slender, hooked at tip, 

 ciliate or slightly spinulose within, the outer lobe slender and 

 biarticulate or with the two joints united {AmeriziLs), the palpi 

 moderate in length, the last joint usually small, subulate, some- 

 times conical, the penultimate club-shaped and pubescent. Men- 

 turn with basal suture distinct, variably emarginate, toothed, the 

 tooth simple or notched; the ligula broader in front, free and 

 truncate at tip and bisetose, the setae usually very closely ap- 

 proximated ; the paraglossae slender, longer than the ligula and 

 not ciliate within ; the palpi moderate in length, the terminal joint 

 small, subulate, the penultimate more or less club-shaped and 

 bisetose in Iront. Thorax with a setigerous puncture at the side 

 and at the hind angle. Elytra sometimes margined at base, sides 

 narrowly inflexed, the margin interrupted posteriorly and with 

 a distinct internal plica, disk with dorsal punctures or foveas, 

 usually two, rarely three, and in a few instances numerous. 

 Prosternum not prolonged. Mesosternum moderately separating 

 the cox!£, the epimera moderately broad and wider externally. 

 Metasternal e[)iniera distinct, posterior coxae contiguous. Legs 

 moderate, the middle and posterior tibias slightly ciliate exter- 



