. Cuvier's animal kingdom : arranged according to its organization. Animals. COLEOPTERA. 501 toothed throughout, or nearly throughout, its whole length, compose a first division, consisting of the foUov.'ing subgenera :— Pambonis, Latr., has the mandibles cm'ved, and stronf^Iy toothed throug-hout the whole length ; and the outside of the tibia; is produced at the tip into a point. The last joint of the outer palpi is semi-oval and loiisitudinal. P. allenuins, Latr., from New Holland. [Several other species are described in a monograph by RI. Gory, in Guérin's Magasin de Zoologie.] Cychi-iis, L
. Cuvier's animal kingdom : arranged according to its organization. Animals. COLEOPTERA. 501 toothed throughout, or nearly throughout, its whole length, compose a first division, consisting of the foUov.'ing subgenera :— Pambonis, Latr., has the mandibles cm'ved, and stronf^Iy toothed throug-hout the whole length ; and the outside of the tibia; is produced at the tip into a point. The last joint of the outer palpi is semi-oval and loiisitudinal. P. allenuins, Latr., from New Holland. [Several other species are described in a monograph by RI. Gory, in Guérin's Magasin de Zoologie.] Cychi-iis, Latr., lias the mandibles straight, and simply curved at the tip ; the anterior tibia; are not produced into a point at the tip ; the tarsi are alike in both sexes ; the thorax is in the form of a truncated heart, or nearly orbicular, with the posterior angles obsolete. [Type, C. ronfrafiix, Fabr. ; a not uncommon British species.] Scaphinotun, Latr., has the three basal joints of the fore tarsi of the males dilated but slightly, and in the form of a plate ; the trapeziform and broad, with the posterior angles acute, and turned upwards. Cychriis elevatus, Fabr. ; North America. Sphieroderus, Dejean, has the aspect of Cychrus ; but with the two basal joints of the anterior male tarsi very broad, and forming a broad plate. [S. Lecontei, Dejean ; North America.] [Dr. Harris has just published (1839) a memoir on Cychrus in the Boston Naf. Hist. Soc, Transactions, in which he suggests that the different genera separated therefrom ought to be expunged.] A second division is formed of those species which have also the body robust, generally wingless, but with the mentum furnished with an entire or bifid tooth, and the mandibles armed with one or two teeth situated at the base ; the thorax is in the form of a truncated heart ; the abdomen is often oval. Tefflxs, Leach, has the labrum entire, and the tarsi are alike in both sexes. T. Megerlei, nearly two inches long. From the
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