Cantharidae

Definition

A family of soft-bodied beetles (Coleoptera: Elateroidea) commonly known as soldier beetles or leatherwings. Members have flexible, parallel-sided elytra that are less hardened than typical beetles, and many species exhibit aposematic yellow-orange and black coloration. The family is cosmopolitan and species-rich, with larvae typically predatory or scavenging in soil, leaf litter, or under bark, while adults frequent flowers and foliage as generalist predators or pollen feeders.

Etymology

From the genus Cantharis (Greek kantharis, a beetle, possibly with reference to blister beetles) + Latin -idae (family suffix).

Example

Adult Cantharidae such as Chauliognathus pensylvanicus (goldenrod soldier beetle) aggregate on goldenrod inflorescences in late summer, where they prey on small insects and mate conspicuously; their soft bodies and flexible wing covers distinguish them from the similarly colored but chemically defended Meloidae (blister beetles) with which they are often confused.

Synonyms

• Soldier beetles
• leatherwings

Related Terms

• Coleoptera
• Elateroidea
• Meloidae
• Elytra
• aposematic coloration
• larval ecology

Usage Notes

Cantharidae are frequently mistaken for blister beetles (Meloidae) due to convergent soft-bodied morphology and warning coloration, but differ in having filiform (thread-like) rather than clubbed antennae and a distinct wing-coupling mechanism. The common name 'soldier beetle' derives from the red-and-black pattern of early-described European species resembling British military uniforms; 'leatherwing' refers to the pliable, parchment-like elytra. Larvae are important but often overlooked components of ground and canopy arthropod communities in ecological studies.