73.215 BF2316 - Lesser-spotted Pinion - Noctuidae - Cosmia affinis - Paul Buxton
73.215 BF2316  – Lesser-spotted Pinion  – Cosmia affinis  – (Linnaeus, 1767)
Adult Macro:  CAT 2 – Can be confused with other species – Good photographs maybe required – Can be confused with other species      
PDF Icon – click for Adult Macro Verification Guidelines

Green –  Rare / Uncommon / Scarce   
Taxonomy:   Macro  >>.  >>  Noctuidae  >> Xyleninae
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Lunar-spotted Pinion
ID pointers: Can be olive brown or rusty brown ground colour. Four distinct white flecks in varying size along the leading edge of the forewing and two thin cross-lines with distinct “V” shaped points. Distinguish this from the other British Cosmia species
Distribution:  (Last record: 18 July 2025 at Belper )  –  A rare and locally distributed species in Derbyshire, that seems to be restricted to isolated lowland areas of the county. Another Cosmia species that has been affected by Dutch elm disease.
General Comment: None
Flight Period: July /  August –  On the wing July – August Moth Activity: Nocturnal   – but can be disturbed during the day Photographed: Yes –  Photographed By: Clive Ashton, Dave Evans  © All Rights Reserved
*** Last updated on 13 January 2026 by TD ***
Wingspan: 28-35mm
Forewing: 12-16mm
Food Plant: English elm (Ulmus procera) andWych elm (U. glabra).
Last Recorded Year: 2025
Last Recorded By – Dave Evans
Last Recorded General Area – Belper

Selected Images:  Cromford, Derbyshire July 28th 2022 – Clive Ashton© / Belper (2025) Dave Evans©



Temporal Distribution Chart
Adults: (between 1946 - 2025)  |  Immatures: (between 2009 - 2009)
(click legend below to show/hide datasets)

Distribution Map for Cosmia affinis

Found 29 records
    ↳ from 2026+
    ↳ 5 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 – Cosmia affinis

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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.

Visit NBN Site


Monthly Records By Year: Cosmia affinis
( data includes both Larvae and Adult Stages )

Monthly Counts By Year: Cosmia affinis
( data is based on 'Adult' stage records only )

First/Last Recorded Dates: Cosmia affinis
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: Cosmia affinis
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Cosmia affinis
AGR: -7.41%   |   Total % Change: -75%

Hectad (10kmx10km) Coverage: Cosmia affinis
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Cosmia affinis

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 - Cosmia affinis – 29 records available

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

Site NameTetradDateCountStageRecorderSourceRecordKey
BelperSK34U18/07/20251adultEvans, Davevc57_irecords_extractiBRC43630241
upper cromford gardenSK25Y11/07/20251adultAshton, Clivevc57_irecords_extractiBRC43358935
Lower Cromford GardenSK25Y14/08/20221adultAshton, Clivevc57_irecords_extractiBRC34569173
Lower Cromford GardenSK25Y09/08/20221adultAshton, Clivevc57_irecords_extractiBRC34569087
Lower Cromford GardenSK25Y27/07/20221adultAshton, Clivevc57_irecords_extractiBRC34569078
The Old Manse, Ault Hucknall, GlapwellSK46S02/09/20131AdultM.E. Bradleyvc57_danes_bc_dataLC000334001OKBTN
The Old Manse, Ault Hucknall, GlapwellSK46S02/09/20131AdultM.E. Bradleyvc57_danes_bc_dataLC000334001WPO15
The Old Manse, Ault Hucknall, GlapwellSK46S23/08/20131AdultM.E. Bradleyvc57_danes_bc_dataLC000334001OLDH0
The Old Manse, Ault Hucknall, GlapwellSK46S23/08/20131AdultM.E. Bradleyvc57_danes_bc_dataLC000334001WPSHY
Repton (site not precise)SK32B23/07/20091LarvaeH.C. Haywardvc57_danes_bc_dataLC000334001WPCLU
Repton (site not precise)SK32B01/07/20092AdultH.C. Haywardvc57_danes_bc_dataLC000334001WP76F
Repton (site not precise)SK32B01/08/20074AdultH.C. Haywardvc57_danes_bc_dataLC000334001WQENK
Carsington Ave, Allestree, DerbySK33J10/08/19861AdultK.J. Orpevc57_danes_bc_dataLC000334001OISCA
Drummond Rd, IlkestonSK44R07/09/19801AdultT. Durovc57_danes_bc_dataLC000334001OIN8M
Wolds Rise, Cavendish Rd, MatlockSK36A04/08/19791AdultB.L. Stathamvc57_danes_bc_dataLC000334001OILUY
Askew Grove, ReptonSK32D24/07/19761AdultD.A. Youngvc57_danes_bc_dataLC000334001OIJYI
Repton (site not precise)SK32B22/07/19461AdultVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001OHV5C
Lathkill Dale (site not precise)SK16S01/01/19051AdultR.H. Fullervc57_danes_bc_dataLC000334001WOSAU
Kedleston St, Derby (site assumed to be his garden)SK33N01/01/19051AdultG. Bakervc57_danes_bc_dataLC000334001WPZ9T
Lathkill Dale (site not precise)SK16S01/01/19001AdultVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001OHD8E
Kedleston St, Derby (site assumed to be his garden)SK33N01/01/19001AdultVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001OICZQ
Bretby area, Swadlincote (site not precise)SK22W01/01/18851Adult[VC57 Recorder]vc57_danes_bc_dataLC000334001TAG9Z
Repton Shrubs, Repton (site not precise)SK32B01/01/18851Adult[VC57 Recorder]vc57_danes_bc_dataLC000334001TAGCH
Barrow on Trent, Derby (site not precise)SK32P01/01/18851Adult[VC57 Recorder]vc57_danes_bc_dataLC000334001TAGEV
Bretby area, Swadlincote (site not precise)SK22W01/01/18851AdultT. Gibbsvc57_danes_bc_dataLC000334001WP37R
Repton Shrubs, Repton (site not precise)SK32B01/01/18851AdultT. Gibbsvc57_danes_bc_dataLC000334001WP387
Barrow on Trent, Derby (site not precise)SK32P01/01/18851AdultG.A. Smallwoodvc57_danes_bc_dataLC000334001WPQ3B
Derbyshire (site not precise)SK33L01/01/18701AdultE. Newmanvc57_danes_bc_dataLC000334001WPZ7U
Derbyshire (site not precise)SK33L01/01/18001AdultVC57 Derbyshire Recordervc57_danes_bc_dataLC000334001OJYHR

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