. Classification of the Coleoptera of North America [microform]. Beetles; Beetles; Coléoptères; Coléoptères. a 'TKIIA OK NdHTII AMKUICA. lal)niin is usiiully iiiargiiiod willi iiR'iulinuic, uiiil usimllv, tli()ii;j;h not always, Itilultcd. Tliis siili-lribo is very closely related to llic j)re('ediiip tribe, l)iit the (liHeroiieo in the position of the unlcniiiu will enable the student to avoid eonfoundinjr tlieni to geniculate, tho first joint ('lniigat«(l. ArYMU'iioiirs. Auteuua; gunioulate, Jlrst joint moi subulate. Uetkiiotiiops. Prothoraciu spiracles covered, palpi fllilbrm. U
. Classification of the Coleoptera of North America [microform]. Beetles; Beetles; Coléoptères; Coléoptères. a 'TKIIA OK NdHTII AMKUICA. lal)niin is usiiully iiiargiiiod willi iiR'iulinuic, uiiil usimllv, tli()ii;j;h not always, Itilultcd. Tliis siili-lribo is very closely related to llic j)re('ediiip tribe, l)iit the (liHeroiieo in the position of the unlcniiiu will enable the student to avoid eonfoundinjr tlieni to geniculate, tho first joint ('lniigat«(l. ArYMU'iioiirs. Auteuua; gunioulate, Jlrst joint moi subulate. Uetkiiotiiops. Prothoraciu spiracles covered, palpi fllilbrm. Uli:ijius. Sub-Tribo 2.âStapliyliiiiiii (gcnuini). The antennic are inserted on the anterior maruin of tlie front, inside of the base of the mandibles, but distant from each otluT. Tlie is more or less convex, frecpieiitly densely puuetured, with the lateral margin duulile; the prothoraeie spiraeles an- always visible and uncovered; the hibrum is always bilol)ed; the anteiiiiai are never geuioulate. The suture is imbricate only in Thiiiopinus. The species live on decomposing animal and vegetable .sub- stances, or on excrements; rarely (Thiiiopinus) on the shores of the ocean, below high-water mark. Some of them are the largest of tlr family. The genus Staphyliaus, as set forth by Erichsou, has been dis- membered by later authors, to form several of the genera below mentioned. A. Maxillary palpi with tho fourth joint shorter than the third; Thorax smooth, narrowed at the base ; Middle cox.'e contiguous, suture imbricated, wings none. TniNoriNus. Middle coxre distant, suture straight. '.s. Tliorax punctured, pubescent, narrowed at the base. Listoteophus. B. Maxillary palpi with the fourth joint equal to or longer than tlie third ; Marginal lines of tho thorax separate, wings none. IIadkotes. Marginal lines of the thorax separate, wings distinct, last joint of la- bial palpi truncate. TuiGONOPiionDS. Marginal lines of the thorax united near the apex, b
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Keywords: ., bookauthorlecontejohnljohnlawre, bookcentury1800, bookdecade1860
