 Cydnidae

Cydnidae are a family of shield bugs, known by common names including "burrowing bugs" or "burrower bugs".In some older classifications, Cydnidae, "sensu lato" includes the subfamily Thyreocorinae (now part of the "Corimelaenidae"), which are known commonly as "negro bugs" (early name to be avoided), or "ebony bugs", and/or the families Thaumastellidae and Parastrachiidae.