ABSTRACT
Thorax with pronotum slightly to moderately broader anteriorly or mesally than posteriorly; base of pronotum distinctly narrower than bases of elytra; laterally rounded, lacking lateral margins; anterior and posterior angles absent, rounded or rightangled, never produced or acute; surface punctate or rugose, rarely smooth. Prosternum anterad coxae flat to moderately convex; prosternal process incomplete, narrowed apically, not extending to mesosternum; prothoracic coxal cavities open, nearly contiguous. Scutellum well-developed or reduced, broadly to narrowly rounded, obtusely angulate, or acute posteriorly. Mesosternum short; mesothoracic coxal cavities open, contiguous. Metasternum broad, long, flat to moderately convex; metathoracic coxal cavities contiguous or narrowly separated.
