Pentatomidae

Definition

A large family of true bugs (order Hemiptera, suborder Heteroptera) commonly known as stink bugs or shield bugs, characterized by a broad, shield-shaped body and the presence of scent glands that release defensive compounds. The family comprises approximately 900 genera and over 4,700 species, making it the largest family in the superfamily Pentatomoidea. Most pentatomids are phytophagous, with several species ranking among the most economically significant agricultural pests worldwide; however, members of the subfamily Asopinae are predatory and valued as biocontrol agents.

Etymology

From the genus Pentatoma + -idae (family suffix)

Example

The brown marmorated stink bug, Halyomorpha halys (Pentatomidae), has become a devastating invasive pest of tree fruits and vegetables across North America and Europe.

Synonyms

• Stink bugs
• Shield bugs

Related Terms

• Hemiptera
• Heteroptera
• Pentatomoidea
• Pentatominae
• Asopinae
• Scent gland
• phytophagous
• true bug

Usage Notes

Pentatomidae is treated as plural in formal taxonomic usage ("Pentatomidae are..."), though singular constructions occur in informal contexts. The common name "stink bug" is sometimes applied more broadly to other pentatomoid families; precise identification requires examination of the scutellum and genitalia. The family's monophyly is well-supported, though subfamily classifications remain under revision.