U U K^ U l.iuru JLJLJ^fci. [LeConte. 



runs backward (except in Lophalophus) a medial groove. The eyes are 

 transverse, narrowed below, and finely granulated. The antennae are gen- 

 iculated ; the scape long, the funicle seven-jointed (the first and second 

 joints longer), the club annulated, oval, pointed; the antennal grooves 

 usually long, well-defined, narrow, and reaching nearly to the lower angle 

 of the eye, except in Lophalophus, where they are wider and shorter. The 

 prothorax is distinctly lobed behind the eyes; the front coxae are contigu- 

 ous and prominent. The metasternum is nearly as long as the first and 

 second ventral segments, and the side pieces are narrow; first, second and 

 fifth ventral segments long; third and fourth united equal to either of the 

 others. Legs moderate in length, slender; tibiae truncate at tip, hind 

 pair not mucronate at the inner angle; tarsi dilated, claws entire, separate. 



Our genera are as follows: 



A. Beak deeply channeled ; tarsi brush-like 



beneath. 



Elytra oval, nearly smooth with faint striae.... TBIG-LYPHUS. 



Elytra oblong oval, with distinct humeri, scab- 

 rous punctured, with distinct rows of 

 punctures PLINTHODES. 



B. Beak more finely channeled: 



Tarsi setose beneath; elytra with strong rows 



of punctures, pubescent mixed with 



scales ACMJEGENIUS. 



Tarsi brush-like beneath, elytra with obsolete 



striae, pubescence above not mixed with 



scales TBICHALOPHUS. 



C. Beak finely carinate; elytra with rows of 



punctures, squamose, with small inter- 

 mixed bristles LOPHALOPHUS. 



D. Beak not carinate; body covered with scales 



with rows of bristles on the elytra ; sec- 

 ond joint of funiculus much shorter 

 than first, equal to the third LEPIDOPHOBUS. 



TBIGLYPHUS n. g. 



Beak as long as the prothorax, stout, suLcylindrical; tumid under the base 

 of the antennae, so as to be broadly and feebly winged; medial groove 

 yery deep, separating near the tip into two diverging lines, tip emarginate; 

 sides with a deep groove extending from the upper part of the eye 

 almost to the antennal groove; the latter is deep, extending to the tip, 

 ending at the lower angle of the eye, where it is joined by an anteocular 

 transverse impression. Gular margin prominent, as in the other genera 

 of this sub-family; parallel grooves run backwards from the buccal fissures 

 to the base of the beak, where between them is seen a short groove, wider 

 behind. Antennae rather slender, funicle seven-jointed, joints one to three 



