58 COLEOPTERA OP NORTH AMEUICA. 



with grooves beneath of variable extent for the reception of the 

 antennae. Eyes in great part superior, very widely separated 

 beneath from the rnouth. Legs short, contractile, tarsi slender, 

 rigid. 



The genera which compose the present division are the most 

 abnormal of all Carabidie. 



One tribe alone represents the sub-family. 



Tribe XXXIII.— PSEUDOiWORPHIIVI. 



Antenna? usually slender, filiform, arising under a moderately 

 dilated frontal plate, the three basal joints glabrous, received in 

 repose in grooves of greater or less length within the eyes beneath 

 the head. Head short, obtuse, deeply inserted in the thorax, 

 sides of front more or less dilated and infringing on the eyes in 

 front, clypeal suture rarely visible, front without supra-orbital 

 setce. Eyes oval, not prominent, usually confined almost entirely 

 to the upper side of head, and widely distant from the buccal 

 fissure beneath. Labrum short, transverse, rounded in front, 

 and feebly sexsetose. Mandibles short, broad, arcuate externally, 

 sometimes slightly toothed within. Maxillce slender, ciliate and 

 spinous witliin, not strongly hooked at tip, the outer lobe slender, 

 biarticulate with the terminal joint longer; the palpi short and 

 thick, the terminal joint cylindrical, compressed, obliquely truncate 

 at tip. Mentum large, without basal suture, deeply emarginate, 

 toothed or not, the epilobes narrow ; ligula and paraglosste vari- 

 able in form; the palpi longer than the maxillary, ihe terminal 

 joint cylindrical and obliquely truncate or securiform. Thorax 

 as broad at base as the elytra, and overlapping them, the lateral 

 margin more or less explanate, and often fimbriate, but without 

 the usual setae. Elytra oblong, truncate at tip, not margined at 

 base, lateral margin acute, sides narrowly inflexed, but more 

 widely near the base, the epipleuraj proper very narrow, no inter- 

 nal plica, surface at most obsoletely striate without dorsal punc- 

 tures. Scutellnm distinct. Prosternum narrow, usually somewhat 

 prolonged behind the coxae, the coxal cavities very narrowly 

 closed behind. Mesosternum very narrow between the coxse, 

 the epimera distinct, not reaching the coxal cavity. Metasternal 

 epimera distinct, posterior coxae contiguous. Legs short, not 

 visible beyond the elytra, the femora stout, rather deeply chan- 



