Powdered Knot-horn

Associated with thyme, and records are largely from areas of calcareous grassland.&nbsp; The closely-related <i>Delplanqueia inscriptella</i> was only separated from this species in 2015, and it may be that some of the older records of this moth relate to the other species.&nbsp; A valid record now requires dissection.

Birch Knot-horn

A rare species in Somerset, associated with birch.&nbsp; Comes to light and knowledge of its distribution might change with targeted searches.&nbsp; Leigh Woods (before 1906), Bickenhall (1948), Shapwick (1955, 1964), West Luccombe (irregularly 1981-2000).

Brown Knot-horn

Associated with heather, and unsurprisingly is commoner the further west you go in Somerset.&nbsp; There are several records well away from naturally-occurring heather - it is more likely that these result from natural dispersal rather than colonisation of garden heathers, which does occur.&nbsp; Comes to light, which accounts for almost all Somerset records.

Matilella fusca

Dusky Knot-horn