Scutelleridae

Definition

A family of true bugs (Hemiptera: Heteroptera) characterized by a greatly enlarged scutellum that forms a continuous shield covering the abdomen and wings, often with brilliant metallic coloration. The shield-like dorsal surface distinguishes them from most other heteropteran families and can lead to misidentification as beetles. Approximately 450 species worldwide, primarily phytophagous, feeding on plant juices with piercing-sucking mouthparts; many species produce defensive secretions when disturbed.

Etymology

From the type genus Scutellera (Latin scutellarius, diminutive of scutum, shield) + -idae (family suffix)

Example

The jewel bug Chrysocoris stollii (Scutelleridae) uses its enlarged scutellum as both a protective shield and a display surface for its iridescent metallic coloration.

Synonyms

• jewel bugs
• metallic shield bugs
• Shield-backed bugs

Related Terms

• Heteroptera
• Pentatomidae
• scutellum
• Hemiptera
• true bugs
• shield bug

Usage Notes

The family is sometimes called 'shield-backed bugs' in reference to the diagnostic scutellar morphology, though this name can cause confusion with unrelated insects. The common name 'jewel bug' refers to the often brilliant metallic or iridescent coloration of many species. Distinguished from the closely related stink bug family Pentatomidae by the scutellum completely covering the wings and abdomen; in Pentatomidae the scutellum is triangular and does not reach the abdomen tip. Formerly treated as a subfamily (Scutellerinae) within Pentatomidae by some authors.