A new species of Platydracus Thomson, 1858 (Coleoptera, Staphylinidae, Staphylininae) from the upper Eocene Florissant beds, Colorado, USA

Platydracus breviantennatus n. sp., is described and figured based on an impression fossil from the upper Eocene Florissant beds of Colorado, the United States. Based on the large and densely setose body, relatively small eyes, and robust mandibles (right mandible seemingly with one simple preapical tooth), tibiae and antennae, the new species is placed in the modern genus Platydracus Thomson, 1858. It differs from other species of Platydracus by its large body, small head, and distinctly short antennae.