Entomology Collections, Miscellaneous


Date of this Version



Journal of the Washington Academy of Sciences, Vol. 36, No. 1, pp. 16-21


This paper continues the series on United States dynastine scarab beetles and includes the three genera differentiated in the following key:

1. Apical margin of posterior tibia evenly truncate, never with angulations or teeth (lateral view); real apex of clypeus beyond (i.e., apical of) the apparent carinate apex; front male tibia frequently edentate. = Cheiroplatys Hope

2. Mandibles always large, always well exposed, always armed externally with teeth or else square in outline (cessus); apical margin of posterior tibia usually with 1 or 2 sharp angulations or 1 to 3 or 4 teeth. = Strategus Hope

3. Mandibles usually hidden beneath clypeus, or only edges exposed, and always unarmed externally; usually with 5 to 9 small to large teeth on outer apical margin of posterior tibia = Xyloryctes Hope