82 OTIORHYN^CHID^. 



[Horn. 



from the first by an arcuate suture. Articular cavities of hind tibia 

 variable. Claws free. As represented in our fauna, this tribe does not 

 differ from the group indicated by Lacordaire, except in the addition of 

 Pandeletejus. 



Our genera are as follows : 

 Anterior coxae contigudias. 



Thorax feebly lobed behind the eyes, (the 

 latter transversely oval, pointed beneath) 



andbisinuate at base PACHNJEUS. 



Thorax not lobed, base truncate, eyes round, 

 or longitudinally oval. 

 Anterior femora normal, the tibite simple... TANYMECUS. 



Anterior femora much longer and stouter 

 than the others, the tibise denticulate 



Avithin HADRO MERITS. 



Anterior coxae distant. 



Anterior femora larger than the others.. PANDELETEJUS. 

 The articular cavities of the hind tibisB vary in the genera. They are 

 feebly enclosed in Pachna-us, more decidedly in Tanymecus, and entirely 

 open in the other two genera. Into this tribe Polydaeris modestus of 

 Cuba should enter. It has very distinct vibrissse composed of scales, and 

 the anterior coxse are separated as in Pandeletejus. The tribe as thus con- 

 stituted is not very homogeneous, and with more genera would divide into 

 well defined groups, each of the above genera constituting a type. With 

 our few genera this appears unnecessary. 



PACHNJEUS Sch. 



PacJinams Schonh. Cure. Disp. Metli. p. 121. 



Rostrum as long as the head, sub quadrangular, slightly declivous at tip 

 and emargmate, above obtusely c.vrinate. Scrobes lateral, deep, well de- 

 fined, narrow, arcuate and passing directly beneath the eyes. Antennae 

 sub-median, moderate ; sc^pe gradually clavate, attaining the posterior 

 margin of the eyes ; funicle 7-jointed, first two joints longer, the second 

 somewhat longer than the first, joiflts 3-7 sub- equal ; club oval, pointed. 

 Eyes oval, narrower beneath. Thorax broader than long, narrower in 

 front, apex slightly prolonged, base bisinuate. Scutellum moderate 

 rounded. Elytra oblong oval, each acute at tip, base bisinuate and wider 

 than the thorax, humeri oblique. Intercoxal process broad, arcuate at tip; 

 second abdominal segment as long as the two following, separated from 

 the first by a strongly arcuate suture. Tibioe finely mucronate at tip. 

 Posterior corbels very feebly cavernous. The slight process at the side of 

 the thorax behind the eyes scarcely warrants the name of ocular lobe. The 

 vibrissse are, however, well marked. The gense are extremely feebly 

 emarginate. 



P. opalus Oliv. (CurcuUo) Ent. v, 83, p. 339, pi. 24, fig. 345; Boh. 

 Sch. Gen. Cure, vi, 1, p. 425. 



