32 COLEOPTERA OF NORTH AMERICA. 



By this avYangementHolcio2yho}-us,Lo2^hogIoiifus, Fiesvius, and 

 tlie second series of EvarthruH revert to Pteroi>tichas. Amara 

 is intended in its most comprehensive sense, although some uf its 

 groups have characters of apparently greater value than those 

 used above in the separation of genera. Loxandrus is the nearest 

 approach in our fauna to the Trigonotomaj. 



Tribe XIX.— I.ICI]VIi\l. 



Antennas slender, moderately long, arising under a distinct 

 frontal plate, the three basal joints glabrous (two in Badiater). 

 Head short, moderately stout, with two supra-orbital setse, cly- 

 peus short, not prolonged between the mandibles, emarginate, and 

 exposing the basal membrane of the labruni, with a setigerous 

 puncture in each, angle. Labrum usually short, emarginate, 

 longitudinally impressed. Eyes moderate in size, not very dis- 

 tant from the mouth, except in Dicselus, where they are small and 

 very distant. Mandibles stout, more or less arcuate, tips usually 

 obtuse, except in Dicaslus, where they are feebly arcuate and 

 acute. Maxillae hooked at tip, ciliate within, tlie outer lobe 

 rather slender, biarticulate, the palpi moderate in length, the 

 last joint variable in form. Mentuni deeply^ emarginate without 

 tooth (in our genera), the ligula and paraglossa? variable in form, 

 llie former bisetose at tip, the palpi moderate, the last joint vari- 

 able in form, but equal in length to the preceding, which is bise- 

 tose in front. Thorax variable in form, with one (rarely two) 

 lateral setigerous puncture, and one near (rarely at) tlie hind 

 angle. Body not pedunculate. Elytra margined at base, sides 

 at most moderately inflexed, the margin rarely (Licinus) sinuate, 

 not interrupted, and without internal plica, surface striate, and 

 with one {Dlplochila), two {Badister), or no dorsal puncture 

 (Dirceh(><). Prosteriium obtuse at tip. Mesosternum concave in 

 front, the epiniera very narrow. Metasternal epiraera distinct. 

 Posterior coxa^ contiguous. Anterior tibiae deeply emarginate 

 within, the middle and jjosterior tibia) sliglilly spinnlose or ciliate 

 externally. Tarsi slender, claws simple. 



The anterior tarsi of the males have three joints rather broadly 

 dilated, densely spongy pube.scent, and ciliate at the sides. In 

 Licinus, however, there are but two dilated joiTits. 



The genera proper to our fauna are tlireo in number. IJciin>/s 

 silphoidei^ has in one or two instances been found, but under 



