Fauna
Insect

Brown Marmorated Stink Bug

Halyomorpha halys

Also known as BMSB, Asian Stink Bug

Brown marmorated stink bugs feature a distinctive mottled shield-shaped body marked by alternating white bands on their antennae and outer abdominal edges. Native to East Asia, these adaptable insects feed on over a hundred plant species by piercing tissues with needle-like mouthparts. In autumn, adults seek shelter inside human structures, gathering in large aggregations to overwinter within walls and attics.

InvasiveAgricultural PestShield Bug
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & preyApples, Peaches, Hazelnuts
Predators
  • Samurai Wasp
  • Birds
  • Spiders
ThreatsPesticides, biological control agents
HabitatsOrchards, crop fields, gardens, woodlands, human buildings
Life span1–2 years
  1. OrderHemiptera
  2. FamilyPentatomidae
  3. GenusHalyomorpha
  4. SpeciesHalyomorpha halys
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
Responsible observation
  • Indoor removal: Vacuum up or sweep indoors rather than crushing them to prevent releasing unpleasant odors.
  • Identification cue: Look for alternating white and dark bands on the antennae and around the abdominal edges.
  • Garden protection: Cover valuable crop fruits with fine mesh netting to block feeding damage.
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