Heterobostrychus, Lesne, 1899

Beiriger, Robert, 2010, Heterobostrychus hamatipennis Lesne (Coleoptera: Bostrichidae) new to Florida, Insecta Mundi 2010 (138), pp. 1-5 : 2-3

Key to species of Heterobostrychus that could occur in Florida

1. Fronto-clypeal suture obsolete or little apparent ( Fig. 4B ) .......................................................... 2 — Fronto-clypeal suture strongly apparent, especially well marked in middle ( Fig. 4A ) .................. .......................................................................................................... H. hamatipennis Lesne

2(1). Eyes weakly raised posteriorly. Posterior pronotal angles with one large prominent tubercle. Elytra glabrous. Granules of pronotum flattened and scale-like ................................................ ...................................................................................................... H. aequalis (Waterhouse)

— Eyes strongly raised posteriorly and slightly detached. Posterior angles with weak tubercle. Elytra lightly pubescent. Granules of pronotum rounded on top, not flattened ................................... ............................................................................................................ H. brunneus (Murray)

Figures

Figure 4. Frontal view of Heterobostrychus spp. A) H. hamatipennis Lesne with fronto-clypeal suture well marked and depressed in middle. B) H. aequalis (Waterhouse) with fronto-clypeal suture obsolete or little apparent.