West Africa

Genus Goniorphnus (Scarabaeidae, Orphninae)

Orphninae, Goniorphnus felschei

Middle-sized beetles (length 9.5–11.5 mm). Color uniformly dark brown to black. Clypeus with more or less pronounced horn in males, without horn in females. Mandibles with angulate lateral margin. Pronotum with 4 tubercles in males, convex in females. Elytra convex, without ridges, punctures mark elytral stria on disc. Anterior tibiae with 3 strong outer teeth. Lateral margin basad of outer teeth not crenulated. Middle and posterior legs similar in shape; posterior femora and tibiae about 1/8 longer than middle ones. Phallobase with membranous ventral side. Except for the absence of clypeal horn and pronotal tubercles, females differ from males in having a spur on protibia. ...