AMERICAN COLEOPTERA. 123 



yi. flavic>olli!>>, Lee. — Head piceous, antennae rufous, basal and apical 

 joints paler. Thorax reddish-yellow, smooth, shining, no discal punctures, 

 slightly wider at base than the thorax. Elytra slightly wider than long, 

 smooth black, shining, apical third red, disc with the usual rows of punctures. 

 Abdomen rufous, last two segments piceous, the apex of the penultimate seg- 

 ment however paler, coarsely punctured, sparsely pubescent. Body beneath 

 black, abdomen rufous, legs testaceous. Length .16 inch ; 4 ram. 



This species lias also the structure of middle and posterior tibia) 

 of the preceding species, iroiu which its color will readily dis- 

 tinguish it. 



Occurs in Michigan, Florida and Georgia. 



The variety ? pictiis, Fauvel niss., is of somewhat more slender form 

 and has also a rufo-testaceous humeral spot. These characters are so 

 exactly in accord with the variations of lepu.'us that I think it better 

 to consider this a variety and not a distinct species. 



The sexual characters of the species are not very striking, and 

 consist in the slightly stouter antennae of the male and the sixth 

 ventral segment much less rounded than in the female. 



The following are unknown to me. 



M. iu»»igiiis, Miikl., Bull. Mosc. 185.3, III, p. 186. — Oblongus, niger, nitidus; 

 thorace disco Isevissimo, paulo ante marginem basaleni punctis quatuor trans- 

 versim positis impresso segmentorum marginibus, abdominis, elytrisque rufis; 

 his thorace sesqui longioribus in medio macula magna discum totum fere occu- 

 pante margineque lateral! nigris, prope seriem dorsualem punctis duobus im- 

 pressis; anlennis capite cum thorace paullo brevioribus, apicem versus leviter 

 incrassatis pedibusque rufo-testaceis; femoribus posticis infuscatis. Longit. 2^ 

 lin, Latit. 1 lin. In insula Afognak. 



The length of this species as given is so much greater than any 

 other in our fauna that there seems to be some error in the generic 

 determination, otherwise it is a remarkably fine species. 



III. nigrans, Miikl., loc. cit. p. 187. — Subelongatus, niger, nitidus, antenna- 

 rum basi, thoracis margine basali,elytrorum limbo apicali, pedibusque testaceis; 

 antennis apicem versus modice incrassatis articulis penultimis transversis; 

 thorace punctis quatuor multo intra apicem transversim positis et eodem 

 numero paullo ante marginem basalem impresso j elytris serie punctorum 

 dorsuali simplici. Longit. li lin. Latit. vix ultra i lin. 



This species seems to be merely one of the varieties of hpiiJus. The 



description fits very well certain forms of that species before me. 



lIAItKOC 1:KUS Erichs. 



This genus is especially distinguished by the form of the hind coxae 



which are broadly triangular, concealing the insertion of the femora 



as well as part of the femur itself in repose. The head is dellexed 



the antennae slender, capillary, and very fragile. The abdomen is 



