A key to Calvarium -like genera

1. Subocular carina absent, subgenal ridge with subtly marked buttonhole configuration.................. Calvariopsis Ruta

-. Subocular carina present................................................................................ 2

2. Prosternal process small, tear-shaped................................................. Calvariomorphus gen. nov.

-. Prosternal process larger, pentagonal......................................................................3.

3. Subocular ridge present................................................................ Calvarium (s. str.) Pic

-. Subocular ridge absent........................................................ Calvarium (Calvariellum) Zwick