A beetle of the Dermestidae family, larder beetle adults range in size from ¼ to 3/8 of an inch in length and have distinctly clubbed antennae. Their bodies are oval shaped and elongated. Primary coloring is dark brown to black, with the top portion of the wing covers having a yellowish band that contains six to eight dark spots. The underside of the body is covered in thin yellow hairs. Adult female larder beetles lay approximately 100 eggs on food or in nearby cracks and crevices. Upon hatching in roughly 12 days, larvae bore into the food material. Larvae are 3/8 to 5/8 of an inch in length and are very hairy. Two backwards curving sharp spines can be found on the upper portion near the last abdominal segment. Depending on gender, larvae will complete 5-6 molts prior to pupation. Larvae will leave their food source and seek out a place for pupation prior to their last molt. Pupation often occurs after boring into wood or a similar material. The complete life cycle from egg to adult occurs in a 40 to 50 day time span. Both larvae and adults feed, although it is typically the larvae that cause the most damage. Adults are known to avoid lighting during mating and egg laying.