Identify from a combination of specimen, droppings/damage, location and timing, never from a bite alone. If evidence is incomplete, “uncertain” is the correct result.

Record without exposure

• Clear photos with scale, from more than one angle.
• Where it was found: bed, kitchen, loft, drain, fabric or garden.
• Time of day and season.
• Movement, size, colour and body shape.
• Droppings, cast skins, webbing, holes, gnawing or food damage.
• Travel, deliveries, used furniture or building work.

Do not handle unknown insects, droppings, nests or carcasses bare-handed. Keep a specimen only if it can be contained safely.

Identification limits

Bites overlap across insects and can have non-pest causes. Blurry photos can confuse similar species. Life stages differ. A professional may need a specimen, inspection or monitoring before treatment.

Do not apply pesticide “just in case”; wrong treatment can expose people, scatter pests or obscure evidence.

FAQs

Can bites alone identify a pest?

No. Seek healthcare advice for symptoms and use physical/environmental evidence for pest identification.

Which photos help?

Sharp close-up and wider location images with a ruler/coin for scale, plus damage or droppings without disturbing them.

Suggested component

Use a Pest Evidence Triage with uncertain outcomes and emergency/health signposting, not image diagnosis.

Related guides

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