Acrocercops brongniardella

Alternative names
Brown Oak Slender

Wingspan 8 to10mm. The larvae of this species mine the leaves of Oak species. They characteristically make twisting initial mines in the upper epidermis, which then join to form a large blotch, with a silvery appearance.

Identification difficulty

Adult Leafmine


In open woodland and other areas where the host species occur.

When to see it

The moth is univoltine, being in flight at the end of July. It can also overwinter and be found again in April and May.

Life History

The larvae feed on Oak (Quercus spp.) 

UK Status

This is a very local species, occurring mainly in southern England and southern Ireland. Occasional sporadic populations are to be found further north. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as local.

VC55 Status

It appears to be uncommon in Leicestershire and Rutland, where there are few records. L&R Moth Group status = D (rare or rarely recorded).

15.019 BF313

be our species champion

Leicestershire & Rutland Map


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

UK Map