70.120 BF1787  -  Geometridae - Rheumaptera hastata - Argent & Sable Adult Macro:  CAT 3 - Difficult to identify/Very rare/Scarce species (includes very scarce adventives/immigrants)/County-level first records - images or specimen may be required - Difficult to identify /Very rare/Scarce (includes very scarce adventives/immigrants)/County-level first records       PDF Icon - click for Adult Macro Verification Guidelines

Brown -  Significant Record / Very Rare / Vagrant         day-flying - Day-flying
Taxonomy:   Macro  >>  Geometridae ID Difficulty:  amber  - care required in the identification process, as confusion with similar species is likely - quality photographs required.
Confusion Species:  Clouded Border
ID pointers: A distinctive and intricately marked black and white moth. Relatively unmistakable, but can be mistaken for Clouded Border.
Distribution:  (First record: 1863 at Overseal Wood, Swadlincote )  -  (Last record: 2024 )  -  A resident with a very restricted distribution in Derbyshire, being known only from a handful of locations. The first account was in 1863 from Overseal, Swadlincote. In recent years thought to be extinct in the county, however one was recorded from Bretby Park in 2004 and then one was photographed at Crich Chase on 3 June 2006 by Graham Finch. Only a further four accounts to 2011. The next sighting was one in a private garden at Baggerswell Wood, Alderwasley on 2nd June 2022. Another specimen recorded in the same garden at Baggerswell Wood on 17th May 2024. Possibly only one site left in Derbyshire.
Flight Period: June /  July /  -  On the wing – June – July – one of the few day flying species.  Photographed: Yes -  Photographed By: Graham Finch, David Kershaw-Wright  © All Rights Reserved
*** Last updated on 11 March 2025 by RP ***
Wingspan: 34-38mm
Forewing: 16-19mm
Food Plant: Bog Myrtle (Myrica gale) and birch (Betula spp.).
Last Recorded Year: 2024
Last Recorded By: Not Recorded
Last Recorded General Area: Not Recorded
First Recorded Year: 1863

IMAGES BELOW:  Kind permission of Graham Finch © – Crich Chase and David Kershaw-Wright ©, photographed in his garden on the edge of Shining Cliff Wood on 2nd June 2022 & again 17th May 2024

** No gallery images were found **

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