Form of clypeal apex. 8 Peltonotus silvanus Jameson and Wada (subquadrate, note chitinized labrum) 9 Ruteloryctes morio (Fabricius) (emarginate, note round mandibles) 10 Surutu seabrai d’Andretta and Martínez (narrowly parabolic) 11 S. hesperius Ratcliffe (broadly parabolic) 12 Protibia of Harposceles sp. 13 Acrobolbia sp. (pentagonal) 14 Arriguttia sp. 15 Augoderia sp. (thickened apex) (Figures 9–15 modified from Jameson et al. 2002, by permission).