49.233 BF1156  –  Tortricidae –  Olethreutinae – Epinotia solandriana – Varied Birch Roller – (Linnaeus, 1758) Adult Micro:  CAT 3 – Very Rare/Scarce/Migrant/Adventive – confusion with leaf mines       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Green –  Rare / Uncommon / Scarce   
Taxonomy:   Micro   >>  Tortricidae  >> Olethreutinae
** Photograph required **
Other Name/s: Variable Bell
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Epinotia brunnichana (Large Birch Roller)
ID pointers: There is a considerable range of colour forms and variation. A distinctive dorsal blotch is often present, sometimes darker and other times paler than the ground colour.
Distribution:  (Last record: 8 July 2023 at Markham Vale NR )  –  Harrison & Sterling described as widespread in mixed woodland. DaNES 1979; 20/7-23/7 1993, 1996,1997, 2003; iRecord 7/8/2023 Markham Vale
Flight Period: July /  August /  –  Flies during July-August Moth Activity: Cathemeral   – and is attracted to light Photographed: No –  Photographed By: Not Recorded
*** Last updated on 2 October 2025 by RP ***
Wingspan: 16-21mm
Food Plant: Birch, Hazel and Sallow
Last Recorded Year: 2023
Last Recorded By – Sid Morris
Last Recorded General Area – Markham Vale NR

Selected Images:  



Distribution Map for Epinotia solandriana

Found 6 records
    ↳ 0 from After 2025
    ↳ 1 from 2020 - 2024
    ↳ 5 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 – Epinotia solandriana

⚠️ Please wait for the map to load fully – do not click the link shown.


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.

Visit NBN Site


Monthly Records By Year: Epinotia solandriana
( data includes both Larvae and Adult Stages )

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


First/Last Recorded Dates: Epinotia solandriana
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: Epinotia solandriana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Epinotia solandriana
AGR: 0%   |   Total % Change: 0%


CUSUM Analysis: Epinotia solandriana
About this chart: CUSUM (Cumulative Sum) charts track long-term trends in moth populations [ filtered by 'Adult' and 'Mine' life stages ] by showing whether each year’s counts are above or below the historical average. Even small shifts build up over time, making trends of growth, stability, or decline easier to see. CUSUM highlights trend-consistency — asking: “Across the years, have moth counts mostly stayed above or below average?”
The data sample has 24 gap year/s here (zero records) between 2000 and 2025. The moth may have been present in those gap years, but no data was available. Too many year-gaps may exaggerate or skew the chart.

Counts for the current year (2025) are pro-rated based on data available up to month 8 (August) to provide a full-year equivalent.

Purple line rises = years better than average; falls = years worse than average.
Peak (best year) Trough (worst year) Growth periods Decline periods
Population peaked around 2003, reaching above average levels. The lowest population point occurred near 2003, showing a significant decline.

What the Y-axis "Cumulative Deviation" means: Cumulative Deviation shows the running total of how each year’s moth population count differs from the long-term average. i

Hectad (10kmx10km) Coverage: Epinotia solandriana
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Epinotia solandriana
( 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 2020-2025.

Records Behind the Map and Charts - Epinotia solandriana – 6 records available

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

Site NameTetradDateCountStageSource
Markham Vale South TipSK47K07/08/20231adultvc57_irecords_extract
Longshaw Est, Padley GorgeSK28K22/08/20031Adultvc57_danes_bc_data
Dowey Lumb NR, DronfieldSK38Q25/07/19971Adultvc57_danes_bc_data
Flash Lane,Beeley Moor (site not precise)SK26Z05/08/19961Adultvc57_danes_bc_data
Deerlands Rd, Ashgate, ChesterfieldSK37K20/07/19931Adultvc57_danes_bc_data
Carvers Rocks NR,Hartshorne,SwadlincoteSK32G30/07/19791Adultvc57_danes_bc_data

Scroll to Top