Search
Generic filters
Exact matches only
Filter by Categories
Ant Information
Cockroach Bait
Cockroach Biology
Cockroach Control
Cockroach identification
Cockroach Information
Cockroach Spray
Cockroach Traps
Latest News - E-News
Latest News - General
Latest News - Magazine
MEDIA
All
Pest ID
PPM Magazine
PPM Pest E-News
Scientific Papers
Termite Professional magazine
Termite Professional Magazine - Asean
Termite Professional Magazine - Australia
Videos
Open to the Public
Pest Pulse
Premium Blogs
Spider Information
Termite Information
Wasp Information
Filter by content type
Taxonomy terms

Drugstore Beetle (Stegobium paneceum)

Drugstore beetle banner image

Bread or biscuit beetle.

Found across Australia and worldwide

Larvae:

Larvae are a white “curl grub” up to 3.5 mm long. They can move quite rapidly.

Adults:

Adults are a reddish brown, oval beetle, 2.0-3.5 mm long, with distinctive 3-clubbed antennae.

Can be confused with the cigarette beetle, but the antennae on the cigarette beetle have a uniform serrated appearance. Also, the elytra (wing covers) of the cigarette beetle have a smooth appearance whereas the drugstore beetle has a lined appearance with rows of pits running the length of the wing covers.

Female beetles can lay up to 100 eggs in her lifetime.

The life-cycle can be completed in as little as 2 months, but more typically the larval period lasts 4-5 months, with 2-3 weeks in the pupal stage.

Adults beetles live between 2-4 weeks.  

Only the larvae causes the damage through feeding.

Drugstore larvae will eat a wide range of dry packaged plant based foods, as well as on prescription drugs which gave rise to its name. They will also feed on wool, hair, leather and books. They will feed on rodent baits.

Drugstore details tend to be more of a pest of processed and packaged foods rather than stored grain facilities.

Drugstore beetles have a symbiotic relationship with yeasts that produce vitamin B. The vitamin B is deposited on eggs before laying and ingested by the hatching larvae when they eat the egg material. This allows the larvae to feed and survive of low nutritional food items.

  • Check all incoming food materials
  • Place all opened food stuffs in sealed plastic containers
  • Clear up any food spills

Monitoring and treatment notes:

Professional Pest Managers can login for more information