This is the largest of the four Dioryctria species. The status of the four Dioryctria species in the UK is uncertain, as they are very difficult to tell apart.

Conifer plantations and heathland.

Recorded in 1 (0.4%) of the 270 2km squares of Huntingdonshire.

Last recorded in June 2017

Recorded date range (Adult): 02 June to 06 June