Swammerdamia caesiella (Hübner, 1796)
16.0150 (B&F: 437)
Swammerdamia heroldella Hübner, 
Swammerdamia griseocapitella (Stainton, 1851)
A resident that is well distributed in the far west and on Ashdown Forest, but apparently much less so elsewhere. It generally occurs singly at mv light, occasionally sparingly on heathland and in deciduous woods. It is double-brooded, flying mainly during May and June, occasionally from early April, and again from the second week of August to late September. The larvae feed on birch. (Pratt, 2011).