Nationally scarce (Na) in orchards in south-eastern England, where formerly known from only a few sites in Kent. In Hampshire first recorded from Waterlooville in 2003, with further records in the south-eastern corner of the county since. Recorded on the Isle of Wight for the first time at Freshwater in 2011. Wingspan 13-14 mm. Reminiscent of
G. janthinana in general appearance but larger, with longer and relatively narrower forewings and darker fuscous-brown hindwings with white cilia. The male of
G. lobarzewskii lacks the specialised scales present in the tornal area of the hindwing of
G. janthinana [Bradley]. Larva feeds within fruit of Apple and Plum.