7.010 BF152  –  Adelidae –  Adelinae – Cauchas rufimitrella – Meadow Longhorn – (Scopoli, 1763) Adult Micro:  CAT 1 – Distinctive Species –       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Blue –  Generally Common / Widespread        day-flying – Day-flying
Taxonomy:   Micro   >>  Adelidae  >> Adelinae
Other Name/s: Meadow Long-horn
ID Difficulty:  green  – easy to identify, generally distinctive and unlikely to be confused with other species.
ID pointers: Antennae are about 2 times length of forewing in the male. Forewing is a metallic golden-green, sometimes tinged reddish or purplish.
Distribution:  Locally distributed in the county – on Lady’s Smock and/or Garlic Mustard
Flight Period: May /  June /  –  On the wing during the day in late May – June  Photographed: Yes –  Photographed By: Rowan Wakefield  © All Rights Reserved
*** Last updated on 6 May 2025 by RP ***
Wingspan: 9-12mm
Food Plant: Cuckoo Flower, Garlic Mustard
Recorded dates for Common [Blue code Blue-coded] moths are not stored on the website at this current time.

IMAGES BELOW:  Buxton, Derbyshire – Rowan Wakefield ©

 
 

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Distribution Map for Cauchas rufimitrella

Found 26 records
    ↳ 2 from After 2025
    ↳ 17 from 2020 - 2024
    ↳ 7 from Before 2020

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.

******* Choose ONLY one at a time, of either Monad, Tetrad or Hectad Distribution - each has it's own set of data. Also, the distribution maps cover ALL recorded data. *******

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.

Land-cover * shows the variety of land-cover within the VC57 area, based on the CORINE (Coordination of Information on the Environment) forty-four thematic classes of land-cover. This will show, to a greater or lesser degree, the number and variety of moths found in different land-cover types. The UK continues to operate within the Copernicus programme, with the UK Centre for Ecology & Hydrology (UKCEH) providing Corine Land Cover (CLC) datasets for the UK and its territories.


NBN Atlas UK Distribution for – Cauchas rufimitrella

⚠️ 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: Cauchas rufimitrella
( data includes both Larvae and Adult Stages )

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


First/Last Recorded Dates: Cauchas rufimitrella
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: Cauchas rufimitrella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Cauchas rufimitrella
AGR: 5.48%   |   Total % Change: 100%


CUSUM Analysis: Cauchas rufimitrella
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 19 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 2022, reaching above average levels. The lowest population point occurred near 2024, 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: Cauchas rufimitrella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Cauchas rufimitrella
( 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 - Cauchas rufimitrella – 26 records available

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

Site NameTetradDateCountStageSource
Ingleby Ave, DerbySK33L19/05/20251adultvc57_irecords_extract
Ingleby AvenueSK33L21/05/20253adultvc57_irecords_extract
Glossop SK, UKSK09B18/06/20241Adultvc57_irecords_extract
ETHEROW COUNTRY PARKSJ99Q01/06/20241adultvc57_irecords_extract
Bilberry Knoll/Hearthstone Lane, DerbyshireSK35D06/05/20241adultvc57_irecords_extract
Wyver Lane MeadowSK34P12/05/20241adultvc57_irecords_extract
Ladycroft AveSK07S07/06/20231adultvc57_irecords_extract
Sett ValleySJ98X18/05/20231adultvc57_irecords_extract
Birch ValeSK08I18/05/20231adultvc57_irecords_extract
Sett ValleySJ98X17/05/20221adultvc57_irecords_extract
Trowell Marsh LNRSK43U23/05/20221adultvc57_irecords_extract
SK/Wolfscote DaleSK15I29/05/20223adultvc57_irecords_extract
SK/Beresford DaleSK15J29/05/20225adultvc57_irecords_extract
Haddon ParkSK26I05/06/20211Adultvc57_irecords_extract
Birch ValeSK08I15/06/20201adultvc57_irecords_extract
Forbes Hole LNRSK43W18/05/20205adultvc57_irecords_extract
Jim Mart Nature ReserveSK36S06/05/20201adultvc57_irecords_extract
Jim Mart Nature ReserveSK36S28/05/20201adultvc57_irecords_extract
Birch ValeSK08I28/05/20203adultvc57_irecords_extract
Etherow CPSJ99Q20/05/20191not recordedvc57_irecords_extract
The TorrsSJ98X17/05/20181not recordedvc57_irecords_extract
Press Ln, DerbyshireSK36S15/05/20121Adultvc57_irecords_extract
Spinkhill (re-seeded plot)SK47P01/06/19991Adultvc57_danes_bc_data
Coombs Dale,Stoney MiddletonSK27C24/06/19951Adultvc57_danes_bc_data
Coombs Dale,Stoney MiddletonSK27H24/06/19952Adultvc57_danes_bc_data
Acton Rd Ind Estate, Long Eaton (site not precise)SK43Q26/05/19951Adultvc57_danes_bc_data

 
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