Dioryctria sylvestrella

Wingspan 28 to 35 mm.  Generally the largest of the four Dioryctria species occurring in Britain, it is best distinguished by the shape of the subterminal line, which is more smoothly curved than the obvious dentate lines of the other species.

Unless identified by a recognised expert, a photo is required. If the photo doesn't show the key ID features then in the comments box describe the size and identifying characters you have observed.

Abroad, the species inhabits pinewoods.

Flies July to September.

After its initial discovery in 2001 in Dorset, there have been a number of records of this migrant from Continental Europe, mainly in the south-east of England. Records dating back to 1999 were subsequently found in collections and there may well be others undiscovered. In the Butterfly Conservation's Microlepidoptera Report 2011 this migrant species was classified as Nationally Scarce B.

Infrequent migrant in Leicestershire and Rutland.