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(like the anterior) bifid and simple, not armed at its inner
surface with any second tooth. This genus has several well-defined
characters, which, combined, abundantly separate it from allied
forms. In the antennce the second joint is longer and narrower
relatively than in other groups, and the fourth joint is rather
longer than the third. The sides of the thorax are coarctate, in
front and near the base; and in the anterior tarsus the first joint
is broadly dilated, and the second joint minute. 1. Pachyonychis
paradoxus. (tab. II. fig. 7.) Pachyonychis dimidiaticornis, Dej.
Cat. P. oblongo-ovatus, latus, depressus, punctatus, nigro-ceneus;
capite brevi, haud producto, inter oculos transverse foveolato,
impunctato, glabro; thorace quadrato, sed antea constrieto,
impunctato, nitido, nigro; elytris latis, depressis, punctatis;
antennis robustis, ad apicem incrassatis, art. -4flavis, 5-8fuscis,
9-11 pallideflavis; pedibus flavis, tarsis anterioribus fusco
suffusis. Long. corp. If lin., lat. f lin. Oblong-ovate, broad,
depressed, thickly punctate, of a dark olive- green colour which
approaches to black. Head short- transverse, not produced between
the eyes: between the eyes is an obsolete, transverse, irregular
groove, which is connected medially with the base of the antennae
by a fine longitudinal fovea; the two, together, forming the
impression of the letter T: the surface impunctate, glabrous.
Thorax quadrate in general form, but considerably constricted
anteriorly; this constriction, commencing from the middle of the
sides, gives the appearance of a very broad truncation of the
anterior angles; the anterior angles subacute, very much depressed;
the sides marginate, more distinctly near the posterior and
anterior angles; surface impunctate, shining, black. Sc...
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