39G CLASSIFICATION OF THE CARABlDyE 



terior angles though prominent arc smaller; the striae in P. ohsoletus are slight furrows, 

 at the bottom of which are single rows of punctures, while in the present species, the stria? 

 are merely rows of punctures which are alternately approximated: the posterior tibia) ap- 

 pear to be nearly glabrous internally in both sexes. 



u. Clivincc. 



The characters of this group are the same as those of the preceding, except that the 

 first joint of the antenna? is not longer than the others; the marginal sulcus of the elytra 

 is still entire, though not granulated ; the marginal row of punctures is in the furrow, and 

 therefore more approximate to the margin ; the ligula is usually more or less acuminate, 

 and the paraglossia are distinct; the anterior tibia; are palmated, but frequently not toothed 

 on the outer margin; the internal emargination is always deep. The thorax is more or 

 less pedunculated, with the posterior angles indistinct, or altogether wanting; the antenna? 

 have two basal joints and part of the third glabrous; they are indistinctly geniculate, but 

 the first joint is not longer than the second or third ; the head is slightly sulcate below 

 the eyes. 



Most of our species may be found described in Putzeys' elaborate monograph of Clivina? : 

 some California species have been added by me in the Annals of the Lyceum, vol. 5, and 

 some Lake Superior species, in Agassiz' work on that region: several yet remain to be de- 

 scribed, but it would be more useful to make them known in the form of a synopsis at a 

 future time, as they are closely related, and at times difficult to identify. 



To the genera already known in our country, Clivina, Schizogenius, Dyschirius, Ardis- 

 tomis, and Aspidoglossa, I have added a new one, Acephorus, found on the shores of the 

 ocean, at San Diego, California. The following notes on previously described species 

 must be borne in mind. 



Schizogenius ferrugineus Putzeys (1846) is Clivina sulcata Lee. (Ann. Lye. 4, 214, 184G.) The 

 first mentioned, ought to take precedence, being in a more general work. S. simplex and pluripunc- 

 tatis Lee. (Ann. Lye. 5, 197) are varieties: the latter name being more applicable must be preserved. 



Dyschirius apicalis Lee. (Agass. Lac. Sup. 204,) must be changed to D. n i g r i p e s , as the former 

 name is preoccupied by Putzeys. 



v. Bcmbidia, (genuina.) 



A numerous group composed of small species, which in their form of body imitate 

 almost all the other groups, but which by their structure arc so intimately related that 

 scarcely any generic differences can be found. Many of them have the last joint of the 

 palpi small and subulate, being the only predaceous land Coleoptera having this form of 

 palpi, with the exception of certain species belonging to the Trechi, from which they differ 

 in having the 8th stria of the elytra entire and deep. 



To various members of the preceding subfamily, especially to the Trechi, Platyni, and 

 Ptcrostichi, they show a strong resemblance, but arc distinguished by the cpisterna of the 

 mesofhorax being diagonally divided. 



The antennas have only two glabrous joints, the third being moderately pubescent ; the 



