Campodeidae

Definition

A family of small, pale, eyeless hexapods in the order Diplura, distinguished by elongated, multi-segmented cerci that extend well beyond the abdomen and by the absence of abdominal spiracles. Members are typically found in moist soil, leaf litter, and caves, where they function as generalist predators or scavengers.

Etymology

From the type genus Campodea + Latin -idae (family suffix); Campodea from Greek kampē (bending, joint) + -odea (resembling), alluding to the flexible, jointed cerci.

Example

Campodea staphylinus, a widespread European species, uses its long, antenna-like cerci to detect prey and navigate through dark, humid soil microhabitats.

Related Terms

• Diplura
• cercus
• hexapod
• Entognatha
• Japygidae
• Apterygote

Usage Notes

Campodeidae and Japygidae are the two primary families of Diplura; they are distinguished by cercus morphology—filiform and many-segmented in Campodeidae versus forceps-like and fewer-segmented in Japygidae. The family is sometimes grouped with Protura and Collembola in the paraphyletic assemblage 'Entognatha' or treated as basal hexapods outside Insecta, depending on classification scheme.