Pentatomoidea

Pentatomoidea is a superfamily of true bugs whose members typically have a large, shield-shaped scutellum and scent glands that release defensive chemicals.

Heteroptera: Heteroptera is a suborder of true bugs with specialized forewings and piercing-sucking mouthparts. Pentatomoidea is one of the major superfamilies within this true-bug lineage.
Piercing-sucking mouthparts: Piercing-sucking mouthparts are needle-like structures used to puncture tissues and take up liquid food. Pentatomoids use them to feed on plant fluids, seeds, or other animals.
Brown marmorated stink bug: The brown marmorated stink bug is an East Asian pentatomid that has become an invasive crop and household pest. Its spread illustrates the agricultural and biosecurity costs of some pentatomoids.
Carl Linnaeus: Carl Linnaeus was a Swedish naturalist who established the binomial system of biological nomenclature. His system supplied the naming framework used to classify pentatomoid species.
Scutellum: The scutellum is a plate on an insect's thorax, formed from the mesonotum. Its enlarged, shield-like form is the superfamily's most recognizable external feature.
Rostrum (insect anatomy): An insect rostrum is an elongated beak containing stylets used for piercing and feeding. The rostrum delivers pentatomoid stylets into food sources.
Southern green stink bug: The southern green stink bug is a plant-feeding pentatomid that damages crops in warm regions worldwide. It exemplifies the direct crop losses caused by feeding pentatomoids.
Hemiptera: Hemiptera is an order of insects with piercing-sucking mouthparts, including true bugs, aphids, and cicadas. Pentatomoidea belongs to this broader order of sap-feeding and predatory insects.
Metathoracic scent gland: A metathoracic scent gland is a defensive exocrine gland opening on an insect's thorax. These glands produce defensive secretions characteristic of many pentatomoid bugs.
Allomone: An allomone is a chemical signal that benefits its producer while affecting another species. Defensive scent-gland compounds can deter predators as chemical allomones.

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AcanthosomaNarrower topic: This broader group includes Acanthosomatidae.