Stigmella basiguttella

Alternative names
Base-spotted Pigmy

The larvae of Stigmella basiguttella produce leaf mines on Oak. This is a long sinuous gallery, widening gradually and filled with green frass. The adult moth has a dark head, bronzy brown forewing with green tint and pale yellowish spot at base. Wingspan 4.5 to 6 mm. Adult moths are best confirmed microscopically.

Identification difficulty

Adult Leafmine


Wherever Oak, the larval foodplant is present.

When to see it

Adult: In two generations May-Jun. Jul-Aug. Leaf mine: June to Oct.

Life History

The larval foodplant is Oak.

UK Status

Widespread and fairly frequent, particularly in south eastern England. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as common.

VC55 Status

Increasingly well recorded in Leicestershire and Rutland in recent years, particularly from the leafmines on Oak

4.058 BF89

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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