OXYTELIDAE. 305 



Meiitum simple ; maxillary palpi short, third joint much 

 larger than second, slightly thickened, fourth scarcely 

 shorter than third and rather narrower at base, rather 

 strongly narrowed from middle ; ligula very slightly 

 emarginate in front, with two short, strong spines in 

 middle ; paraglossae soldered to ligula ; labial palpi with 

 second joint equal in breadth to first and a little broader 

 and shorter than third. Thorax transverse, with a slightly 

 raised smooth central line and notched side margin ; scu- 

 tellum small, transverse ; intermediate coxae placed near 

 each other, all tibiae without spines. 



Si/ntomium, Curt. 



II. Antennae threadlike or gi'adually somewhat 

 thickened toward apex, or with last five joints 

 abruptly thickened. 



1, Intermediate coxae placed somewhat apart. 



Mentum simple ; maxillary palpi with joints about equal 

 in breadth, third joint rather shorter than second, fourth 

 about as long as second and third together, gradually nar- 

 rowed at apex ; ligula rather deeply emarginate in front, as 

 long as paraglossae ; joints of labial palpi about equal in 

 breadth, first rather longer than second and rather shorter 

 , than third, latter gently narrowed toward apex. Thorax 

 with a longitudinal depression in middle and two shorter 

 ones at base ; scutellum rather large, oblong triangular ; 

 anterior tibiae with fine spines. Copropliilus, Latr. 



2, Intermediate coxae placed near each other. 



A A, Anterior tibiae with spines. 



a a. Head not constricted behind ; second 

 joint of labial palpi slightly thickened, double 

 as long as third. 



Third joint of maxillary palpi distinctly shorter than 

 second ; ligula emarginate in middle and on each side of 

 front, paraglossae very fine, scarcely distinct from ligula. 

 Antennae with last five joints abruptly thickened ; thorax 

 with a slightly raised smooth central line and a row of 

 more distinct punctures on each side ; elytra punctured in 

 rows ; scutellum distinct. Compsochilus, Kr. 



h b. Head distinctly constricted behind; second 

 joint of labial palpi only as long as third. 



