OF THE i NITED STATES. 393 



of illustrating the preceding group, I have thought it useful to detail certain characfc ra 

 which aeem to have been overlooked by those who have written upon this group. 



A peculiar character, which I have observed in do other Carabide, and which appears 

 also in the figures of the genera of the preceding group is, the insertion of the antennas 

 under the sides of the front, which are dilated in fronl of the eyes. The labium is small 

 and flatj the mandibles in the species below described small and sharp: the palpi cylindri- 

 cal, with the last joint longer than the penultimate: the chin is deeply emarginate, the 

 tooth of the middle is very small and scarcely distinct: the emargination is nearly filled 

 with the basal membrane of the ligula, as in Lebiaj the ligula is Blightly dilated at tip: 

 the paraglossai are broad, rounded, as long as the ligula, and connate with it: the antennae 

 arc filiform, the three or four basal joints sparsely, the others more densely pubescent ; the 

 second is so closely articulated with the third that the separation can scarcely be per- 

 ceived. The head is narrowed behind the eyes; the diagonal Buture of the epimera of the 

 mesothorax is very distinct: the parapleural arc narrow, their posterior appendage is dis- 

 tinct. The abdomen has six ventral segments as usual. 'The legs (of this species are 

 compressed and broad, the femora deeply excavated on the under Burface; the anterior 

 tibiae have a very slight emargination internally, with the spurs nearly obsolete; the tarsi 

 are slender, hairy, as long as the tibiae, with the claws very long and Blender. 



As not only the differences in the form of the antennae and legs, already pointed out by 

 King in his description of ()/.aiia testudinea,* exist in this species, but the middle tooth of 

 the mentum is very much smaller than in the typical Ozsense, it is necessary to consider it 

 as a distinct genus, under the name of Physea Brul/e, of which Trachelizus Sol. is a sy- 

 nonym. 



The characters already detailed will tend to >how that the Ozsenae must be regarded as 

 a distinct type in the Carabidae, possessing \er\ slight affinities toward- the Brachini, but 

 indirectly allied with the Ilelluones, through the group succeeding this, which B< I ms com- 

 posed of species having affinities with rlelluo and Ozsena. 



The interruption of the lateral margin of the elytra seem- to ha\e been first pointed out 

 by Klug, and remarkably distinguishes tin- from all the other groups: the margin anterior 

 to the tubercle is slightly dilated, hut the occllate punctures are not obvious, and there is 

 no stria adjacent to them. The species winch has furnishi d the material for these m 

 appears to be new, and may he thus defined. 



]'. hirta, rufo-ferrnginea, nitida, capite tboraceque fere bevibus, hoc valdo t: . lateriboa 



valde dilatatis, rotumlatis, concavis subrngosis, angnlis omnibus valde rotnn ytria 



brevitcr pubesccntibus, subtilitcr granulato-pun< ! majoriboa r :n i-« serintis notatis, epi- 



pleuris hi'vissimis flavis. Long. '5. 



q. Psydri. 



I have formed this group from two small species which Beem to have a t< i iih ncy towards 

 Morio, but which differ essentially from that genus bj their diagonally divided epimera. 

 Taking into consideration the glabrous pant- of the ant. una', and the pub cent middle 



