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Monochroa hornigi - Distribution map

Please note that the NBN Gateway map service has been terminated as of 1 April 2017.

As soon as a replacement map service is available, distribution maps will hopefully appear here again.

In the meantime, you can get some idea of distribution from the NBN Atlas website.

View the NBN Atlas Map

35.077 BF740

Monochroa hornigi

(Staudinger, 1883)

Wingspan c.10-12mm.

First recorded in the early 1960s from Buckingham Palace garden, this elusive species has since been found, usually singly, in several locations mainly across southern England.

The larvae feed internally in the stems of knotweed (Persicaria and Polygonum) but do not show signs of their presence. They have been found by splitting dead stems of the foodplant.

Adult moths fly in July and August and are somewhat nondescript in appearance.

More images

Reference

Emmet, A.M., Langmaid, J.R. (Eds.)The Moths and Butterflies of Great Britain and Ireland, Volume 4 (Part 2) (2002)

Bradley, J.D.Checklist of Lepidoptera Recorded from The British Isles, Second Edition (Revised) (2000)

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