Prionychus ater


Length 12 to 14 mm. Dull appearance, head and pronotum densely and coarsely punctured.

Similar Species

Prionychus melanarius is 10 to 12mm long with a shiny appearance with head & pronotum sparsely punctured.

Identification difficulty
Recording advice

Good quality photographs and size of specimen required. 


Nocturnally active saproxylic beetle occurring on a range of broad-leaved trees.

Life History

Larvae develop in decaying wood or in the soil where they feed upon organic matter and roots. Both adults and larvae of many species have been found in accumulated wood and debris, especially where wood mould is present, in hollow trunks of standing and fallen timber.

UK Status

Widespread though local throughout the southern half of Britain.

VC55 Status

Appears to be increasing if frequency in our area, often attracted to light. 

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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