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Knowing about the lifecycle and habits of different fabric beetle species can help to identify the most effective control methods.
White-bellied Dermestidus (also known as the Spotted Dermestidus)
(Dermestes maculatus)
Appearance
- Adult is 6–10 mm in length.
- Black and dull in colour with white underside.
- Larva is 3–9 mm in length with orange stripe running down its back.
- Female lays up to 800 eggs.
- Lifecycle is 2–3 months.
- Pupates in solid material such as wood.
- Feeds on various animal products and dried fish.
- Commonly found infesting silk production areas and museums
Two-star caterpillar
(Attagenus pellio)
Appearance
- Adult is 4–6 mm in length.
- Reddish brown to black in colour with distinctive white spots; one on each wing cases.
- Larva is 6 mm in length with long orange ‘tail’ of hairs.
- Normally one generation per year
- Development can take up to three years.
- Mating takes place outdoors after which they fly indoors to lay eggs.
- Common inhabitant of bird nests.
- Larva feeds on dead insects and animal materials such as wools, feather and furs.
- Adult feeds on pollen and nectar.