This species most probably is Stenoptilia pterodactyla, which appeared in our garden in March 2004. Like many other Plume Moths it overwinters being adult. The larvae can be found on Speedwell exclusively. The rather non descript adults reach a wingspan of up to some 28 mm. The colour of the wings is quite variable and may be yellowish, brownish or greyish. Stenoptilia pterodactyla is a very common species all over Britain and Ireland.