Fauna
Insect

Blister Beetle

Mylabris pustulata

Also known as Orange Blister Beetle, Pustulate Blister Beetle, Red-banded Blister Beetle

Striking black-and-orange wing covers signal the chemical defense of these insects to potential predators. Adults gather on blossoms to consume pollen and petals, while the highly mobile larvae seek out soil-dwelling grasshopper eggs to feed upon. Contact with stressed beetles triggers the release of cantharidin, a potent fluid that causes painful skin blisters within hours.

Warning ColorsBlisteringAgricultural Pest
Blister Beetle reference
arian.suresh from Chennai, India / CC BY 2.0 · cc-by
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Key facts
Diet & preyGrasshopper egg pods, Flower petals, Pollen
Predators
  • Toads
  • Lizards
  • Birds
ThreatsPesticide application and habitat clearance
HabitatsAgricultural fields, grasslands, scrublands, and gardens
Life span1–2 years
Classification
  1. FamilyMeloidae
  2. SpeciesMylabris pustulata
Range & activity
Range data is not available yet.
Safe observation
Interaction riskHigh
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is high
Secretes cantharidin which causes painful skin blisters; avoid handling and never ingest.
Why it is dangerous
Produces cantharidin, a toxic chemical defense that causes severe skin blistering on contact and severe internal damage if swallowed.
How to recognize a risky encounter
Look for bold black wing covers patterned with broad red or bright orange bands and spots.
What to do
Observe from a safe distance and never brush crushed beetles off bare skin with bare hands.
Responsible observation
  • Observation: Watch adults feeding on flowers from a short distance without touching them.
  • Handling Caution: Never crush or pinch these beetles against exposed skin.
  • Crop Protection: Wear thick gloves if removing them manually from garden foliage.
Related species
Help improve the field guideSomething wrong?

Report a name, category, or profile issue for review.

Checking your Fauna account…