70.292 BF1969  –  Geometridae –  Ennominae – Dyscia fagaria – Grey Scalloped Bar – (Thunberg, 1784) Adult Macro:  CAT 1 – Distinctive species unlikely to be confused with others –       PDF Icon – click for Adult Macro Verification Guidelines

Green –  Rare / Uncommon / Scarce   
Taxonomy:   Macro   >>  Geometridae  >> Ennominae
ID Difficulty:  green  – easy to identify, generally distinctive and unlikely to be confused with other species.
ID pointers: Quite a distinctive moth. As the name suggests, there is a curved scalloped cross-line running through the outer forewing running into hindwing and another smaller curved cross-line near the wing base. A dark spot is located in between the two forewing cross-lines. The ground colour is a silver-grey but can be very variable.
Distribution:  (Last record: 2023 )  –  Last Recorded in 2023 – A scarce resident that is locally distributed in Derbyshire. Despite considerable areas of moorland in the north of the county, this moth is rarely seen and seems to favour the eastern moors. During the period 2019-2023 only four reports.
General Comment: None
Flight Period: July /  August –  On the wing July – August  Moth Activity: Nocturnal  Photographed: Yes –  Photographed By: Simon Roddis, Christian Heintzen  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 31-40mm
Food Plant: Heather (Calluna) and Heath (Erica).
Last Recorded Year: 2023
Last Recorded By – Not Recorded
Last Recorded General Area – Not Recorded

Selected Images:  Derbyshire – Image by Simon Roddis ©  /  Wildboar Clough, Longdendale, Derbyshire – Christian Heintzen ©



Distribution Map for Dyscia fagaria

Found 32 records
    ↳ from 2026+
    ↳ 8 from 2020 - 2025
    ↳ 24 from Before 2020
Flying
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

If the Map Layers function fails, just refresh the page and it should be OK after. Use the +- zoom on the top left, or on a tablet, use two fingers to zoom. Remember, the last layer you ticked is the one which displays the popup information - they sit on top of each other - de-select then re-select, to see the popup values.

Bedrock Geology ** indirectly affects moth distribution by influencing the type of habitat and food plants available in an area. In turn, this may affect the types of moths that can thrive, or where they can most likely be found.


NBN Atlas UK Distribution for – Dyscia fagaria

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Note – the NBN Atlas datasets are listed in the map below and vary in their currency (uptodateness) – however, the map does give a general indication of the moth's distribution across the UK.

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Monthly Records By Year: Dyscia fagaria
( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Dyscia fagaria
( data is based on 'Adult' stage records only. )


First/Last Recorded Dates: Dyscia fagaria
Adult-only & Anything [Larvae, Pupae, Adult, Mines]

Shading shows moth presence between dates

Click the colour discs below to Select/De-select as Required

Recordings By Year: Dyscia fagaria
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Dyscia fagaria
AGR: 0%   |   Total % Change: 0%

Hectad (10kmx10km) Coverage: Dyscia fagaria
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Dyscia fagaria
( data includes Adult Stage only )

Flight Period chart – the grey hatched area above, which can cross one or more months, pictorially represents the best guess we have for this moth's flight periods [month/s]. The coloured lines represent the actual months seen in flight, from site observation records received between 2020-2026.

Records Behind the Map and Charts - Dyscia fagaria – 32 records available

Listed by Year - descending - scroll across to see all table columns

Site NameTetradDateCountStageSource
Glossop, Hague Street, Hay MeadowSK09G21/05/20251adultvc57_irecords_extract
Wardlow, Roost BarnSK17X16/05/20251adultvc57_irecords_extract
Derbyshire Wild Life Trust Long CloughSK09G09/05/20251adultvc57_irecords_extract
Glossop, Black Moor at mSK09Q14/07/20241adultvc57_irecords_extract
Staveley DerbyshireSK47H23/06/20231adultvc57_irecords_extract
Glossop, Gnat Hole Rough FieldsSK09L02/06/20231adultvc57_irecords_extract
Glossop, Moorfield, Wood's CabinSK09L22/05/20231adultvc57_irecords_extract
HathersageSK28F26/06/20211adultvc57_irecords_extract
Birch ValeSK08I07/06/20181adultvc57_irecords_extract
The Old Manse, Ault Hucknall, GlapwellSK46S22/07/20131Adultvc57_danes_bc_data
The Old Manse, Ault Hucknall, GlapwellSK46S22/07/20131Adultvc57_danes_bc_data
The Hollies,Station Rd,Darley DaleSK26R08/06/20091Adultvc57_danes_bc_data
Beeley Moor (Slagmill Plantation)SK36E09/05/20071Adultvc57_danes_bc_data
Beeley Moor (triangle), BeeleySK26Y27/05/19902Adultvc57_danes_bc_data
Beeley Triangle, Beeley Moor, BeeleySK26Y27/05/19902Adultvc57_danes_bc_data
Beeley Moor (triangle), BeeleySK26Y22/05/19903Adultvc57_danes_bc_data
Beeley Moor (triangle), BeeleySK26Y22/05/19903Adultvc57_danes_bc_data
Johnnygate, Barlow, ChesterfieldSK37C29/07/19791Adultvc57_danes_bc_data
Johnnygate, Barlow, ChesterfieldSK37C29/07/19791Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precies)SK26Z03/07/19795Adultvc57_danes_bc_data
Whitesprings, Hall Dale, Darley Dale (site not precise)SK26R24/04/19761Larvaevc57_danes_bc_data
Wragg's Quarry, Beeley MoorSK26Y04/05/19711Larvaevc57_danes_bc_data
Wragg's Quarry, Beeley Moor, BeeleySK26Y04/05/19711Larvaevc57_danes_bc_data
Wragg's Quarry,Rowsley MoorSK26Y26/07/19691Adultvc57_danes_bc_data
Wragg's Quarry, Beeley Moor, BeeleySK26Y26/07/19691Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precies)SK26Z06/07/19691Adultvc57_danes_bc_data
Beeley Moor, Beeley (site not precise)SK26Z06/07/19691Adultvc57_danes_bc_data
Slagmill Plantation (moors area) (site not precise)SK26Z18/06/19601Adultvc57_danes_bc_data
Wragg's Quarry,Rowsley MoorSK26Y21/06/19581Adultvc57_danes_bc_data
Wragg's Quarry, Beeley Moor, BeeleySK26Y21/06/19581Adultvc57_danes_bc_data
Wragg's Quarry,Rowsley MoorSK26Y27/05/19581Adultvc57_danes_bc_data
Wragg's Quarry, Beeley Moor, BeeleySK26Y27/05/19581Adultvc57_danes_bc_data

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