Note: there is no reliable feature allowing separation of females in some of these genera.

1. Elytral apex rounded or obliquely truncate without projections at outer angle............. 2

— Elytral apex perpendicularly truncate in relation to body axis with short spine at outer angle, or obliquely truncate with long or somewhat long spine at outer angle................... 4

2(1). Humeral carina absent........................ Murupeaca Martins and Galileo, 1992

— Humeral carina present......................................................... 3

3(2). Frons in male with projections.................................. Phoebella Lane, 1966

— Frons in male without projections.............................. Gagarinia Lane, 1956

4(1). Inner tooth of claws shorter than outer one; antennae in male short, just surpassing elytral apex........................................................ Tabatinga Lane, 1966

— Inner tooth of claws about as long as outer one; antennae in male distinctly surpassing elytral apex........................................................................... 5

5(4). Scape with apical cicatrix......................................................... 6

— Scape without apical cicatrix..................................................... 7

6(5). Frons in male strongly projected centrally, acute and emarginate at apex Purusia Lane, 1956

— Frons in male without projections.... Purusiella Dalens, Touroult and Tavakilian, 2010

7(5). Frons in male uniformly convex.................................. Juninia Lane, 1966

— Frons in male with projections................. Sibapipunga Martins and Galileo, 1993