Green shield bug (nymph)
Likely *Chinavia* sp. (formerly *Acrosternum*), exact species uncertain from the image
- Order & Family
- Hemiptera; Pentatomidae
- Size
- Usually about 12–17 mm long as an adult; this rounded, wingless nymph is commonly 8–12 mm.
Natural Habitat
Vegetation, woodland edges, gardens, orchards, and crop fields, especially where host plants produce fruit or seeds.
Diet & Feeding
Pierces plants with a straw-like beak and sucks sap from developing fruits, seeds, pods, and stems. It may also feed opportunistically on other insects or carrion.
Behavior Patterns
Nymphs pass through several wingless stages before becoming adults, often clustering on host plants. Adults overwinter in sheltered vegetation and release a strong odor when disturbed.
Risks & Benefits
Generally harmless to people, though defensive secretions can irritate skin and eyes. It can damage fruits and seeds, while predatory relatives and occasional predation by this group may contribute modestly to pest control.