General comments:
Local and scarce. This is one of very few moth species that seem to be more widespread in Middlesex than in Hertfordshire, which in turn suggests that the lack of Herts records in not likely to be a result of under-recording; it is genuinely scarce. The caterpillar feeds in the bark of oak and horse chestnut trees (and in birch in Scotland) and in March/April exudes red frass from crevices in the bark. Confusion is only possible with Dystebenna stephensi, which also exudes red frass from oak trunks (but which does not affect Horse Chestnut).

Recorded in 9 (22%) of 41 10k Squares. First Recorded in 1900. Last Recorded in 2023. Additional Stats

Exit Recorder