Wingspan c. 26mm.
First observed in Kent in 1980, this species has since extended its range to a number of southern and south-eastern English counties, where it is now found regularly, though not commonly.
The larva feeds on Norway spruce (Picea abies), in a spinning amongst the needles.
It is generally the smaller of the British Dioryctria species and is often a brighter looking moth showing broader white bands. There is a diagnostic pale spot on the hindwing, but this is not visible in the field.
Typically the adults are on the wing in June and July.