Flat-headed Ant-like Bethylid Wasp
Scientific Name: Sclerodermus domesticus
Order & Family: Hymenoptera: Bethylidae
Size: 2mm to 5mm (approximately 1/8 to 3/16 inch)

Natural Habitat
Often found indoors where wood-boring beetles are present, or outdoors in dead wood and timber.
Diet & Feeding
Larvae of wood-boring beetles (such as Longhorn beetles or Anobium punctatum). Adults may feed on nectar or moisture.
Behavior Patterns
They are parasitoids; the female stings beetle larvae to paralyze them and then lays eggs on them. They are wingless (apterous) or winged depending on the caste/environment and are noted for their high social organization and maternal care for a non-social insect.
Risks & Benefits
Benefits the ecosystem by controlling wood-boring beetle infestations. However, they can pose a risk to humans as they are known to sting painfully if handled or if they come into contact with skin (often referred to as 'Sclerodermus dermatitis').
Identified on: 3/22/2026