Widespread and fairly common across our region, wherever the larval food-plant is found. Larvae over-winter in seed-heads of Teasel Dipsacus fullonum and this is often the easiest way to obtain records because the adults, although usually larger than other similar Endothenia species, require dissection to separate. Larvae should be inspected closely to confirm that they have a dark brown head capsule and no anal comb. This separates them from larvae of Endothenia marginana which can also use Teasel (their head capsule is black and they do have an anal comb).

	Determination by Genitalia Examination (gen. det.) Required

Recorded in 39 (28%) of 140 10k Squares.
First Recorded in 1922.
Last Recorded in 2022.