Florida Predatory Stink Bug
Euthyrhynchus floridanus
A bold black-and-red native stink bug that hunts caterpillars, beetles, and other garden insects.
Florida Predatory Stink Bugs occur throughout the state in woodlands, orchards, gardens, and agricultural areas. Unlike plant-feeding stink bugs that damage crops, this species is a beneficial predator.
They help suppress some leaf-eating insects, but they are generalists rather than precision biological controls. A diverse, pesticide-conscious landscape with flowering plants and layered vegetation gives these and other beneficial insects shelter and alternative food.
Habitat:
Forests and Woodlands, Grasslands and Agricultural Areas, Urban and Residential Areas
Area / Range:
Statewide
Diet:
A predatory insect that attacks caterpillars, beetle larvae and adults, and other soft-bodied insects by piercing prey and drawing out fluids.
Behavior:
Often hunts on shrubs, trees, garden plants, and crop foliage. Nymphs may remain in groups, and adults can release a strong defensive odor when disturbed.
Daytime
Active Times:
Best time to see:
Warm daylight hours from spring through fall on foliage where caterpillars and beetles are active.
Florida Native Status:
Native
Conservation Status:
Not listed; widespread in Florida, with local abundance influenced by prey availability and pesticide use.
Safety Level:
Low
Safety Information:
Do not handle with bare hands. Gently guide an indoor bug into a container and release it outside; wash the area and seek care if a rare puncture causes a strong reaction.
Benefits to Property:
Preys on caterpillars and beetles that may damage vegetables, ornamentals, fruit trees, and native plants.
Property Concerns:
May release an unpleasant odor indoors or when handled. Its defensive beak can deliver a painful puncture if pressed against skin, though it does not seek people.
Fun Fact:
- It is a true bug with piercing-sucking mouthparts.
- Bright red and black coloration warns predators of its chemical defenses.
- Both adults and nymphs are predatory.
Wildlife Laws:
This native beneficial insect is not generally regulated for ordinary observation on private property. Collection on parks, preserves, or other managed lands may require permission; follow site-specific rules.
Identification:
Adults are broad, shield-shaped bugs, mostly glossy black or dark blue with vivid red to orange markings on the shoulders and abdomen. Nymphs are rounded and colorful. The piercing beak is tucked beneath the body when not feeding.