Cydnidae

Definition

A family of pentatomoid true bugs (Hemiptera), commonly called burrowing bugs or burrower bugs. Many species are fossorial, using a modified head and forelegs to excavate soil and living primarily belowground, emerging mainly to mate and oviposit in the substrate. Other species are non-burrowing and occur aboveground in association with vegetation. Several species are agricultural pests of roots and tubers.

Etymology

From the genus Cydnus (Greek mythological river name) + -idae (family suffix)

Example

The chinch bug, Blissus leucopterus (family Blissidae), is sometimes confused with burrower bugs in the family Cydnidae, but Cydnidae such as Pangaeus bilineatus can be distinguished by their fossorial forelegs and subterranean habits.

Synonyms

• Burrower bugs
• burrowing bugs
• cydnids

Related Terms

• Pentatomoidea
• Hemiptera
• Fossorial
• subterranean
• burrowing bug
• Cydninae
• Scaptocorini
• agricultural pest

Usage Notes

Cydnidae is treated as plural in formal taxonomic usage (e.g., 'Cydnidae are...'), though 'cydnid' serves as the singular common form. The family is nested within the superfamily Pentatomoidea, which also includes stink bugs (Pentatomidae) and shield bugs. Not all Cydnidae are burrowers—some genera occupy leaf litter or herbaceous vegetation—so 'burrower bug' is a functional, not universal, designation.