Red Elm Pigmy

A leaf-miner on elm, it needs care to distinguish from <i>S. ulmivora</i>.&nbsp; In this species, the larvae are yellow, rather than green, and vacated mines have the exit hole on the upperside of the leaf, rather than the underside.&nbsp; This is the commonest of the three <i>Stigmella</i> species mining elm, and can no doubt be found in all areas of the county where elm is common, perhaps being absent from areas where elm is largely absent, such as parts of the Levels and the more barren, treeless areas of inland Exmoor.&nbsp; Feeding on elm in hedgerows as well as large trees, it appears to have remained widespread and common despite the effects of Dutch Elm Disease.

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.

Scrubland Pigmy

A leaf-miner on blackthorn.&nbsp; Very common and widespread, though can fluctuate in numbers from one year to the next.&nbsp; Some gaps in its distribution are from lack of recording, but it may genuinely be absent through lack of foodplant from areas of Exmoor, the Quantocks and the Levels.

Stigmella plagicolella

Scrubland Pigmy