Barred Rowan Pigmy

A leaf-miner on Rowan.&nbsp; Scarce, and restricted by the distribution of the tree, which is restricted to acidic uplands in Somerset.&nbsp; A cluster of records from the Quantocks, a thin scatter of records from Exmoor, and isolated examples from Britty Common (Blackdowns), Beacon Hill Wood (Mendip) and Clevedon.

Black-poplar Pigmy

A leaf-miner on Black Poplar and (more usually in Somerset) hybrid poplars.&nbsp; Most records are from the Levels and low-lying areas in the south of the county.&nbsp; It is absent from the Mendips, where the foodplant is entirely absent, and scarce in the north of the county, again reflecting the relative rarity of the tree.&nbsp; Unsurprisingly, it is absent from Exmoor, other than from a series of records in the Porlock area, but might be expected from the low-lying coastal areas between Minehead and Dunster.

Aspen Pigmy

A leaf-miner on Aspen <i>Populus tremula</i> and White Poplar <i>Populus alba</i>, neither of which are common trees in Somerset.&nbsp; Three records from two sites (and both foodplants) in and around Frome, an area with good numbers of poplars by Somerset standards.

Stigmella assimilella

White-tipped Dot