The Diapriidae

frons between eyes with sharp projections, points, or ledges (figs. 37, 89); A1 relatively short, apical rim with sharp flaps (figs. 37, 89); mandibles strongly projecting, beaklike (figs. 37, 89); antennal formula 12–14

frons between eyes unarmed (figs. 78, 79); A1 distinctly elongate, apical rim rounded, without flaps (fig. 79); mandibles not projecting, clasped (fig. 79); antennal formula 11–13; Nearctic (Arizona), Central and South America [mf]