The Odd Beetle Thylodrias contractus

Adult male beetle

Size: 2-3mm

Shape: Long

Colour: Brown

Antennae: Long

Distinguishing features: Male has thin, twisted wing cases and is completely different from the female which is much larger and wingless.

Larvae are pests of: Natural history collections and also feed on dead insects

Damage: Grazing and frass

Adults eat: Very little

Very rare in the UK but is an important pest in parts of the USA.
Thylodrias female
Drawing of male

The Odd Beetle Thylodrias contractus

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Thylodrias female
Drawing of male