Ectoedemia intimella

Alternative names
Black-spot Sallow Pigmy
Description

Wingspan about 6 mm.  The adult is mostly blackish with a slight purple sheen and an obvious white or creamy blotch. The head is orange or yellowish.

Identification difficulty

Adult Leafmine

Recording advice

Adults: Determination by Genitalia Examination (gen. det.) Required.  

Leafmine: Good photograph required preferably backlit to show frass within the mine and larva if present.  Please also state the host species.

Habitat

Areas where the host willows occur, especially Goat Willow (Salix caprea).

When to see it

Adults are on the wing in June, in a single generation. Leafmines may be found between July and November.

Life History

The larvae mine the leaves of sallow (Salix), especially S. caprea, initially galling the leaf petiole before moving to the the midrib of the leaf. Subsequently it mines into the leaf-blade, and tends to form a fairly distinctive blotch which often contains two lines of frass. 

UK Status

In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as local.

VC55 Status

Not frequently recorded in Leicestershire and Rutland, although it may be overlooked.

Reference
4.082 BF25

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Leicestershire & Rutland Map

MAP KEY:

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

UK Map