dorsal areas of propodeum with at least one, more or less distinct, transverse secondary keel. (head from above distinctive, somewhat lentil-shaped; pronotum with prominent dentiform shoulders, its posterior face subvertical and rugose; posterior margin of pronotum showing as a free, raised rim that extends from spiracle to spiracle and is separated from the mesoscutum by a percurrent furrow; scutellar foveae circular; face with a dull shagreened sculpture that extends from the antennal insertions almost to the clypeus; marginalis only about one-fifth as long as its distance from the basalis.)