Scarabaeoidea

Definition

A superfamily of beetles (order Coleoptera) comprising approximately 35,000 species, including scarab beetles, dung beetles, rhinoceros beetles, stag beetles, and related groups. Members typically exhibit lamellate (clubbed, plate-like) antennae, stout bodies, and often fossorial (digging) adaptations. The superfamily represents the sole constituent of the infraorder Scarabaeiformia and is notable for containing some of the largest extant beetles.

Etymology

From Scarabaeus (type genus of scarab beetles) + -oidea (superfamily suffix)

Example

The Hercules beetle (Dynastes hercules) and Goliath beetles (Goliathus spp.) are among the most massive insects in Scarabaeoidea, with males using their exaggerated horns in combat for mating access.

Related Terms

• Scarabaeidae
• Dynastinae
• Geotrupidae
• Lucanidae
• Passalidae
• Trogidae
• Scarabaeiformia
• lamellate antenna
• Coleoptera

Usage Notes

Family-level composition remains provisional due to ongoing taxonomic revision; some classifications historically placed Lucanidae (stag beetles) and Passalidae (bess beetles) outside this superfamily. Distinguished from other beetle superfamilies by the combination of lamellate antennae and particular larval characteristics (C-shaped scarabaeiform larvae with well-developed thoracic legs). The suffix -oidea indicates superfamily rank in zoological nomenclature.