Adults are uniform black or blackish brown, and the underside of the abdomen is brown with brown spots. Full-grown larvae are dark brown and have many long hairs on their back.
Development. Larvae complete development in about 50 days and have 7 to 9 instars. Males live about 169 days; females live 173 days.
Habits. This is a very common household pest. It feeds on smoked meat, dried ﬁsh, bones, hides, animal skins, and cheese.