. Classification of the Coleoptera of North America [microform]. Beetles; Beetles; Coléoptères; Coléoptères. COLEOPTERA OF NORTH AMERICA. Autcrior coxa) large, prominent, conical; niandlMc? and labnim beneath the rofloxed clypcus; antenna; 9-jointed, slinrt; clul) small, 8-j(jinted; abdomen very small, with the veulral sutures entirely efl'aeed, last segment free, conical; pygidium slightly prominent; elytra rounded at tip; epimera of mesothora\ small, extending to the coxas; side pieces of raetathorax narrow, epimera covered; logs stout, posterior thighs large ; tibia; thick, conical; tar
. Classification of the Coleoptera of North America [microform]. Beetles; Beetles; Coléoptères; Coléoptères. COLEOPTERA OF NORTH AMERICA. Autcrior coxa) large, prominent, conical; niandlMc? and labnim beneath the rofloxed clypcus; antenna; 9-jointed, slinrt; clul) small, 8-j(jinted; abdomen very small, with the veulral sutures entirely efl'aeed, last segment free, conical; pygidium slightly prominent; elytra rounded at tip; epimera of mesothora\ small, extending to the coxas; side pieces of raetathorax narrow, epimera covered; logs stout, posterior thighs large ; tibia; thick, conical; tarsi very lung; claws diverging, slender, with a small bisetose onychium; anterior tibiaj without spurs, posterior tibia) with two spurs. Clypeus concave, rounded ; iiientum linear ; clawb simple. LAsiorrs. Clypeu8 llattened, parallel, incised each side, and marked with a tiansvtnie suture ; mentuin trapezoidal; clawei divided. Oxckkus. Lasiopus is found in , Onccrus in California, each repre- sented by one species. They are the smallest ^leloloiilhidio known to me, and live on flowers; the upper surface is glabrous, but the legs are fringed with long hairs. Oncerus rpi-einbles in form the European Cliasmatopterus, but the clypous is double as in Dipliucrania. Lasiopus exactly resembles in appearance Aclopus Er., which, hi wever, has the labrum and maudibk"^ porrected as in the preceding B. Pleurostict Melolonthidae. The mandibles and labrum are placed under the clypeus in all of our genera, although prominent in some foreign genura; the posterior pair of spiracles varies in position; in some groups it is external to the suture between the propygidium and the fifth ventrril segmeut, in others it is placed directly on the suture, which in Diplotaxes is almost oljliterated. Although the sub- tril)es appear to l)e quite natural groups, and of equal value, it is diflicult, on account of the absence of many typical forms from our fauna, to combine them in such m
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