Treble Brown Spot

Treble Brown Spot Idaea trigeminata (Haworth, 1809)
Status .....Occurs locally in southern parts of the UK, but hadn't been reliably recorded from anywhere in Nottinghamshire since at least 1990, until the moth suddenly appeared out of the blue at Radcliffe-on-Trent in 2023 (Dulwich, P.) and at South Muskham on 20/06/24 (Kennewell, M.). There have been a number of records since, mostly from the Trent Valley, with an isolated record from the Idle Valley NR in 2026 (Cadman, P. and Hunt, I.). Seems to be on the increase.
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Photographed at the Idle Valley NR, June 2026. Specimen kindly provided by Phil Cadman and Ian Hunt.

The records for the Nottinghamshire distribution map are currently provided by the following contributors - Martin Kennewell. Phil Cadman and Ian Hunt. Sheila Wright (Nottinghamshire macro moth report 2023). Sheila Wright (Nottinghamshire macro moth report 2024). Nottinghamshire Moths and Butterflies Facebook Group.

You can contribute your own records to help us gain an accurate status of this species in Nottinghamshire. Send an Excel spreadsheet of your records via the 'contact us' link at the top of the homepage.

Updated June 2026