12.038 BF229 – Yellow-backed Detritus Moth – Monopis obviella – ([Denis & Schiffermüller], 1775)
Adult Micro: CAT 2 – Can be confused with other species –
– click for General Verification Guidelines | – click for Specific Verification Guidelines
– click for General Verification Guidelines | – click for Specific Verification Guidelines 
– Rare / Uncommon / Scarce
– care required in the identification process, as confusion with similar species is likely – quality photographs required. Confusion Species: Monopis crocicapitella
ID pointers: A golden yellow head, with a dark brown or blackish brown forewing that has a scattering of golden yellow scales. An obvious pale whitish central spot in forewing. A prominent pale yellow stripe down the dorsum bordering the central pale yellow band on thorax. Hind wing is dark greyish with a purplish sheen. Generally smaller than similar M.crocicapitella.
Distribution: (Last record: 7 July 2023 at Long Eaton ) – Unknown in Derbyshire with only 13 reported records between 2012 – 2023. Suspect widespread just simply under-recorded. Very difficult to tell apart from Monopis crocicapitella.
General Comment: None *** Last updated on 2 October 2025 by RP ***
Last Recorded Year: 2023
Last Recorded By – Marion Bryce
Last Recorded General Area – Long Eaton
Selected Images: Belper – 8/10/2021 – Dave Evans©
Image Gallery
No gallery images found for this moth.
Temporal Distribution Chart
Adults: (between 2006 - 2025) | Immatures: (between 2025 - 2025)
(click legend below to show/hide datasets)
This chart summarises all available historical occurrence records collated by ISO week of the year. It reflects recorder effort and sampling distribution as well as true biological activity, and should be interpreted as an indicative pattern of seasonal occurrence rather than a statistically controlled abundance or phenology model.
Distribution Map for Monopis obviella
Found 31 records
↳ from 2026+
↳ 20 from 2020 - 2025
↳ 11 from Before 2020
↳ from 2026+
↳ 20 from 2020 - 2025
↳ 11 from Before 2020
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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 – Monopis obviella
⚠️ 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.
Monthly Records By Year:
Monopis obviella
( data includes both Larvae and Adult Stages )
Monthly Counts By Year:
Monopis obviella
( data is based on 'Adult' stage records only )
First/Last Recorded Dates: Monopis obviella
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: Monopis obviella
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Monopis obviella
AGR: 0% | Total % Change: 0%
Hectad (10kmx10km) Coverage: Monopis obviella
( data includes both Larvae and Adult Stages )
Flight Periods – Indicative –vs– Recorded Data
Monopis obviella
Monopis obviella
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 - Monopis obviella – 31 records available
Listed by Year - descending - scroll across to see all table columns
| Site Name | Tetrad | Date | Count | Stage | Recorder | Source | RecordKey |
|---|---|---|---|---|---|---|---|
| Belper | SK34U | 19/09/2025 | 1 | adult | Evans, Dave | vc57_irecords_extract | iBRC45469456 |
| Midway, Derbys. | SK32A | 18/09/2025 | 1 | adult | Williams, Michael | vc57_irecords_extract | iBRC45485932 |
| Belper | SK34U | 18/09/2025 | 1 | pupa | Evans, Dave | vc57_irecords_extract | iBRC45469403 |
| Ingleby Ave, Derby | SK33L | 14/07/2025 | 1 | adult | Shervill, Andrew | vc57_irecords_extract | iBRC43505756 |
| Chaddesden Garden | SK33T | 21/06/2025 | 1 | adult | loverock, neil | vc57_irecords_extract | iBRC42660942 |
| Midway, Derbys. | SK32A | 19/06/2025 | 1 | adult | Williams, Michael | vc57_irecords_extract | iBRC42543073 |
| upper cromford garden | SK25Y | 11/06/2025 | 1 | adult | Ashton, Clive | vc57_irecords_extract | iBRC42212920 |
| Belper | SK34N | 11/06/2025 | 1 | adult | Evans, Dave | vc57_irecords_extract | iBRC42267881 |
| Midway, Derbys. | SK32A | 10/08/2024 | 2 | adult | Williams, Michael | vc57_irecords_extract | iBRC39954728 |
| Midway, Derbys. | SK32A | 03/08/2024 | 1 | adult | Williams, Michael | vc57_irecords_extract | iBRC39954676 |
| Midway, Derbys. | SK32A | 18/07/2024 | 1 | adult | Williams, Michael | vc57_irecords_extract | iBRC39954534 |
| King's Newton | SK32Y | 12/05/2024 | 1 | adult | Soar, Will | vc57_irecords_extract | iBRC40386406 |
| Woodland Ave | SK43R | 17/06/2022 | 1 | Adult | Thorpe, Steve | vc57_irecords_extract | iBRC27846437 |
| Belper | SK34U | 08/10/2021 | 1 | adult | Evans, Dave | vc57_irecords_extract | iBRC35557664 |
| Woodland Ave | SK43R | 26/10/2020 | 1 | adult | Thorpe, Steve | vc57_irecords_extract | iBRC33502396 |
| Woodland Ave | SK43R | 29/07/2020 | 1 | adult | Thorpe, Steve | vc57_irecords_extract | iBRC33501768 |
| Woodland Ave | SK43R | 02/06/2020 | 1 | adult | Thorpe, Steve | vc57_irecords_extract | iBRC33500880 |
| Woodland Ave | SK43R | 30/05/2020 | 1 | adult | Thorpe, Steve | vc57_irecords_extract | iBRC33500846 |
| Woodland Ave | SK43R | 28/05/2020 | 1 | adult | Thorpe, Steve | vc57_irecords_extract | iBRC33500798 |
| Findern, Derbyshire, DEAZ | SK33A | 25/05/2020 | 1 | adult | Brian and Jean Hallam | vc57_irecords_extract | iBRC35162415 |
| Backgarden Marehay | SK34Z | 20/07/2016 | 1 | adult | Thorpe, Steve | vc57_irecords_extract | iBRC33504678 |
| Backgarden Marehay | SK34Z | 21/06/2016 | 1 | adult | Thorpe, Steve | vc57_irecords_extract | iBRC33504619 |
| Backgarden Marehay | SK34Z | 16/06/2015 | 1 | adult | Thorpe, Steve | vc57_irecords_extract | iBRC33505415 |
| Backgarden Marehay | SK34Z | 19/06/2012 | 1 | adult | Thorpe, Steve | vc57_irecords_extract | iBRC33510266 |
| Bamford St,Ripley | SK34Z | 19/06/2012 | 1 | Adult | Thorpe, Steve | vc57_danes_bc_data | LC000334001COU9R |
| Hardhurst Rd, Alvaston, Derby | SK33W | 30/06/2010 | 2 | Adult | I. Gardler | vc57_danes_bc_data | LC000334001COX5C |
| Hardhurst Rd, Alvaston, Derby | SK33W | 29/06/2010 | 1 | Adult | I. Gardler | vc57_danes_bc_data | LC000334001COT85 |
| Hardhurst Rd, Alvaston, Derby | SK33W | 21/06/2010 | 1 | Adult | I. Gardler | vc57_danes_bc_data | LC000334001COZBR |
| Hardhurst Rd, Alvaston, Derby | SK33W | 14/06/2010 | 1 | Adult | I. Gardler | vc57_danes_bc_data | LC000334001COX4L |
| Hardhurst Rd, Alvaston, Derby | SK33W | 05/06/2010 | 1 | Adult | I. Gardler | vc57_danes_bc_data | LC000334001CP5B4 |
| Edgecote Drive,Newhall,Swadlincote | SK22V | 09/09/2006 | 1 | Adult | Topliss, Neil | vc57_danes_bc_data | LC000334001CP3M0 |