Hairy fungus beetle
Typhaea stercorea (Linnaeus)

Classification

Secondary pest: fungus feeder
Order: Coleoptera
Family: Mycetophagidae
Acronym: TST

Description

  • Adults are uniformly light brown, oval and slightly flattened, 2 to 3 mm long.
  • Elytra are covered with parallel lines of fine hairs.
  • Antennae are 3 segmented and the head is readily visible from above, distinguishing the hairy fungus beetle from some similar species.
  • Larvae are whitish to yellowish with a visible head capsule and dark urogomphi.
  • Larvae are elongate and somewhat flattened with well-developed legs.

Similar species

Commodities affected

  • Stored grain, seeds, tobacco, nuts

Signs of infestation

  • Is associated with mouldy or damp grain

Damage

  • Beetle is a generalist feeder.
  • Damage is not distinctive and is caused by both adult and larval feeding.
  • Beetle’s presence in stored grain indicates poor storage conditions.

How to control

Geographic range

  • Is found worldwide and across Canada

Where found

  • Feeds on damaged grain and is associated with mould
  • Is found in warehouses, stores, flour mills, feed mills, granaries
  • May be found on ripening crops prior to harvest such as hay and cereal grains
  • Is also found in corn fields and may be associated with decaying ears of corn

Life history

  • Adults are long lived and fly readily.
  • Females lay eggs randomly within the commodity.
  • Larvae are active moving freely in the commodity.

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