The animal kingdom, arranged after its organization : forming a natural history of animals, and an introduction to comparative anatomy . nnae commences atthe sixth or seventh joint. Tomicus, Latr., has no notches at the sides of the thorax, and the tibiae are not striated. [Numerous minute,cylindric species.] Platypus, Herbst., has the sides of the thorax notched to receive the femora, and the tibias are transverselystriated. [The insects of this genus, or rather family, have been recently described by Dr. Erichson in Weigmanns Archiv.,and figured in Dr. Ratzeburgs Forst Insecten. Several new
The animal kingdom, arranged after its organization : forming a natural history of animals, and an introduction to comparative anatomy . nnae commences atthe sixth or seventh joint. Tomicus, Latr., has no notches at the sides of the thorax, and the tibiae are not striated. [Numerous minute,cylindric species.] Platypus, Herbst., has the sides of the thorax notched to receive the femora, and the tibias are transverselystriated. [The insects of this genus, or rather family, have been recently described by Dr. Erichson in Weigmanns Archiv.,and figured in Dr. Ratzeburgs Forst Insecten. Several new genera are established in these works.] The others have the palpi large, very visible, and of unequal length. The body is depressed andnarrowed in front; the antennae either 2-jointed, the second joint being very large and irregular-shaped,or 10-jointed, and entirely perfoliated ; the tarsi are entire. These are exotic insects [of the mostsingular appearance and greatest rarity], which compose the genus Paussus, Linn.,—[Of which I have published a monograph in the Trans. Linn., and Entomol. Society, proposing severalnew genera].. —1, 2, Tomicus typograplius—3, 4, * Latreille observes, that these appear to be allied to Cryptophatfus,and other analogous Pentamerous Coleoptera. [The fact is, thatwhilst some of the species here placed at the head of the Xylophagi, arc extremely closepossess no other relxylopbagous in habits elations to the Curculionidse, othc1 that of being minute in size, ai COLEOPTERA. 543 Paiissns proper, has only two joints to the antenna, the second very large and , Dalm., composed of a single species apparently witli ocelli, and with theantennse scarcely longer thanthe head, and , Swed., has the antennae 10-jointed and perfoliated. 2. Those which have only 10-jointed antennsc, and the maxillary palpi are not narrowed to the tips,but are of equal thickness throughout, or thicker at the tips ; the joints of th
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