Mycetophagus atomarius


Length 3.5 to 4.5 mm. This beetle has dark brown or blackish elytra which are heavily marked with orangey-yellow. The legs are yellow.

Identification difficulty

Associated with the fruiting bodies of Daldinia concentrica on Ash and Hypoxylon fragiforme on Beech and may be found under bark where these fungi are present.

When to see it

All year round.

Life History

Larvae develop within the fungus.

UK Status

Widely but thinly distributed across England and more locally in Wales and Scotland as far north as Glasgow. There are few records from the west country and not recorded from Cornwall.

VC55 Status

Infrequent in Leicestershire and Rutland but may be found in numbers where it occurs.

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Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map