70.236 BF1915 - September Thorn - Geometridae - Ennomos erosaria

70.236 BF1915 - Geometridae - Larrentiinae - Ennomos erosaria - September Thorn

Adult Macro: CAT 2 - Can be confused with other species -

- click for Adult Macro Verification Guidelines

- Rare / Uncommon / Scarce

Taxonomy: Macro >> Geometridae

ID Difficulty: amber

- care required in the identification process, as confusion with similar species is likely - quality photographs required.

ID pointers: Although similar to a few other species of “Thorns”, this one is generally plainer in appearance.

Distribution: (Last record: September 2024 ) - A resident that is locally distributed and uncommon in Derbyshire. Most records come from the south and east of the county. Easily confused with the rarer August Thorn.

Flight Period: August / September / October / - On the wing August – October – one generation

Moth Activity: Nocturnal - and is attracted to light

Wingspan: 30-35mm
Forewing: 17-21mm

Food Plant: Oak (Quercus), birch (Betula) or lime (Tilia).

Last Recorded Year: September 2024

Last Recorded By: Not Recorded

Last Recorded General Area: Not Recorded

No First Date Information Recorded

IMAGES BELOW: Allestree, Derby August 2021 – image by Stephen Plant © / Chaddesden, Derby – August 2024 – Martin Roome © / Charlesworth – September 2024 – Christian Heintzen©