Anatomy
Trogidae are characterized by their distinct dirt-encrusted, warty or bumpy appearance. They are usually brown to gray/black in color and are covered with short, fairly dense setae. Their body shape is oblong to oval with a flat abdomen and their length varies from 2 to 20 millimeters depending on species. The antenna of hide beetles are usually fairly short and clubbed. The hardened elytra of Trogidae, which are generally covered with small knobs giving the beetle their rough appearance, meet along the midline of the body and cover the entire abdomen and well-developed wings. Their head is bent down and covered by the pronotum. They also have heavy limbs and spurs resembling those of scarab beetles. Trogidae larvae are a creamy yellow/white in color, except at their caudal end which darkens as it accumulates with feces. They have a heavily sclerotized cranium that is almost black in color. The abdominal segments have at least one or more transverse rows of setae.
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