Cauchas fibulella
Cauchas fibulella
Adult • Kenfig NNR, Glamorgan • © Paul Parsons

7.009 BF153
Cauchas fibulella

([Denis & Schiffermüller], 1775)


Wingspan 8-11 mm.

The smallest of the British Adelinae, with a distinctive pale mark on the centre of the forewing, and often a second, smaller pale blotch nearer the base. Unlike some of its relatives, the antennae of the male are only slightly longer than those of the female.

The foodplant is germander speedwell (Veronica chamaedrys), the larvae feeding initially on the seeds, later building a portable case from fragments of plant, and feeding on the leaves close to the ground.

The moths are on the wing in June and fly in sunshine, often visiting the flowers of the foodplant.
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