Blastobasis adustella       Stathmopoda pedella
41.003 BF874  –  Blastobasidae – Blastobasis lacticolella – Large Pale Masoner – (Rebel, 1940) Adult Micro:  CAT 2 – Confusion Species –       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Blue –  Generally Common / Widespread   
Taxonomy:   Micro  >> .  . >>  Blastobasidae
Other Name/s: London Dowd, Blastobasis decolorella
ID Difficulty:  green  – easy to identify, generally distinctive and unlikely to be confused with other species.
ID pointers: Cream to straw yellow elongated forewing. Often rolled up. Some dark spots at about two-thirds. Very variable in degree of colour and markings, with some quite plain and others dark and well marked.
Distribution:  Not listed in Harrison & Sterling (1988) – An accidentally introduced species to Britain that has now established itself and is expanding its range. Fairly common and widespread in the VC57 recording area
Flight Period: May /  June /  July /  August /  September /  October /  November /  –  On the wing in two generations – May – August & September – November Moth Activity: Nocturnal   – and is attracted to light Photographed: Yes –  Photographed By: Tony Davison  © All Rights Reserved
*** Last updated on 7 May 2025 by RP ***
Wingspan: 13-22mm
 Food Plant: Variety of vegetable matter.
Recorded dates for Common [Blue code Blue-coded] moths are not stored on the website at this current time.
IMAGES BELOW:  Melbourne, Derbyshire – Tony Davison©

Blastobasis-lacticolella - Tony Davison
Blastobasis-lacticolella – Tony Davison
Blastobasis-lacticolella - Tony Davison
Blastobasis-lacticolella – Tony Davison
Blastobasis lacticolella - Tony Davison
Blastobasis lacticolella – Tony Davison
Blastobasis-lacticolella - Tony Davison
Blastobasis-lacticolella - Tony Davison
Blastobasis lacticolella - Tony Davison

no images were found

Distribution Map for Blastobasis lacticolella

derbyshiremoths.org © makes no guarantee of accuracy of data used in these maps and charts – they are presented to you with best endeavours and the data behind them updated periodically as time permits. Historic records are being discovered all the time. These will be assessed, so once they are all verified, they will be incorporated onto the map and charts.

Found 309 records
    ↳ 13 from After 2025
    ↳ 123 from 2020 - 2024
    ↳ 173 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.


Monthly Records By Year: Blastobasis lacticolella

Monthly Counts By Year: Blastobasis lacticolella

Recordings By Year: Blastobasis lacticolella

Annual Growth Rate (AGR): Blastobasis lacticolella
AGR: 3.14%   |   Total % Change: 110.1%
Years Analysed: 2000 – 2024

Hectad (10kmx10km) Coverage: Blastobasis lacticolella

Flight Periods – Indicative –vs– Recorded Data
Blastobasis lacticolella

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 - Blastobasis lacticolella – 309 records available

Listed by Year - descending

TaxonSite NameTetradYearDateCountStage
Blastobasis lacticolellaWingerworth, DerbyshireSK36Y202504/07/20251adult
Blastobasis lacticolellaupper cromford gardenSK25Y202503/07/20251adult
Blastobasis lacticolellaBuxton (w)SK07R202530/06/20251adult
Blastobasis lacticolellaIngleby Ave, DerbySK33L202520/06/20251adult
Blastobasis lacticolellaupper cromford gardenSK25Y202524/06/20253adult
Blastobasis lacticolellaLadycroft Ave, BuxtonSK07S202530/06/20251adult
Blastobasis lacticolellaLadycroft Ave, BuxtonSK07S202519/06/20251adult
Blastobasis lacticolellaBuxton (w)SK07R202527/06/20251adult
Blastobasis lacticolellaStretton Handley School - Beresford LnSK36Q202519/06/20251adult
Blastobasis lacticolellaStaveley garden S433YASK47H202528/06/20251adult
Blastobasis lacticolellaBelperSK34N202518/06/20251adult
Blastobasis lacticolellaBuxton (w)SK07R202520/06/20251adult
Blastobasis lacticolellaMarkham Vale DerbyshireSK47K202529/06/20256adult
Blastobasis lacticolellaLongdendale, Wildboar Clough WoodlandSK09U202403/09/20241adult
Blastobasis lacticolellaShirland - Hallfieldgate LaneSK35Z202406/09/20241Adult
Blastobasis lacticolellaBuxton (w)SK07R202413/09/20241adult
Blastobasis lacticolellaBuxton (w)SK07R202420/09/20241adult
Blastobasis lacticolellaBuxton (p)SK07R202401/09/20242adult
Blastobasis lacticolellaGlossop, Gnat Hole Rough FieldsSK09L202401/09/20242adult
Blastobasis lacticolellaWoodland AveSK43R202408/09/20241adult
Blastobasis lacticolellaBuxton (w)SK07R202403/09/20242adult
Blastobasis lacticolellaBelperSK34U202403/08/20241adult
Blastobasis lacticolellaLadycroft Ave, BuxtonSK07S202407/08/20241adult
Blastobasis lacticolellaWoodland AveSK43R202402/08/20241adult
Blastobasis lacticolellaLongdendale, Wildboar Clough WoodlandSK09U202411/08/20241adult
Blastobasis lacticolellaBelperSK34N202401/08/20241adult
Blastobasis lacticolellaLadycroft Ave, BuxtonSK07S202411/08/20243adult
Blastobasis lacticolellaWaingroves WoodsSK44E202417/08/20241adult
Blastobasis lacticolellaDerbyshire Wild Life Trust Long CloughSK09G202423/08/20241adult
Blastobasis lacticolellaBirch ValeSK08I202411/08/20241adult
Blastobasis lacticolellaupper cromford gardenSK25Y202402/08/20242adult
Blastobasis lacticolellaBuxton (p)SK07R202414/08/20241adult
Blastobasis lacticolellaDerbyshire Wild Life Trust Long CloughSK09G202431/08/20241adult
Blastobasis lacticolellaQuarndon, DerbyshireSK34F202409/07/20241adult
Blastobasis lacticolellaLadycroft Ave, BuxtonSK07S202422/07/20241adult
Blastobasis lacticolellaHathersageSK28F202426/07/20241adult
Blastobasis lacticolellaHigh Leas Farm, RiberSK35D202428/07/20241adult
Blastobasis lacticolellaWest Park Fox Covert LNRSK43W202431/07/20245adult
Blastobasis lacticolellaKing's NewtonSK32Y202429/07/20241adult
Blastobasis lacticolellaIlkeston, DerbyshireSK44K202412/07/20241adult
Blastobasis lacticolellaBuxton (w)SK07R202419/07/20241adult
Blastobasis lacticolellaFroggatt, Hope ValleySK27N202424/07/20241adult
Blastobasis lacticolellaIlkeston, DerbyshireSK44K202428/07/20241adult
Blastobasis lacticolellaDerbyshire Wild Life Trust Long CloughSK09G202416/07/20241adult
Blastobasis lacticolellaNorton Lees, Sheffield (VC57)SK38L202418/07/20241adult
Blastobasis lacticolellaupper cromford gardenSK25Y202418/07/20241adult
Blastobasis lacticolellaWoodland AveSK43R202418/07/20241adult
Blastobasis lacticolellaNorton Lees, Sheffield (VC57)SK38L202427/07/20241adult
Blastobasis lacticolellaupper cromford gardenSK25Y202419/07/20241adult
Blastobasis lacticolellaupper cromford gardenSK25Y202425/07/20241adult
Blastobasis lacticolellaHigh Leas Farm, RiberSK35D202428/07/20241adult
Blastobasis lacticolellaGlossop, Hague Street, Hay meadowSK09G202406/06/20242adult
Blastobasis lacticolellaHigh Leas Farm, RiberSK35D202429/06/20242adult
Blastobasis lacticolellaupper cromford gardenSK25Y202402/06/20241adult
Blastobasis lacticolellaMarkham Vale South TipSK47K202426/06/20242adult
Blastobasis lacticolellaShirland - Hallfieldgate LaneSK35Z202424/06/20241Adult
Blastobasis lacticolellaGlossop, Gnat Hole Rough FieldsSK09L202427/05/20241adult
Blastobasis lacticolellaLongdendale, Wildboar CloughSK09U202430/05/20241adult
Blastobasis lacticolellaBirch ValeSK08I202307/10/20232adult
Blastobasis lacticolellaHigh Leas Farm, RiberSK35D202327/10/20231adult
Blastobasis lacticolellaBuxton SK17, UKSK07R202309/10/20231
Blastobasis lacticolellaOrchid WoodSK43L202308/09/20231adult
Blastobasis lacticolellaOrchid WoodSK43L202310/08/202325adult
Blastobasis lacticolellaLongdendale, Wildboar CloughSK09U202301/08/20231adult
Blastobasis lacticolellaDerbyshire Wild Life Trust Long CloughSK09G202306/08/20231adult
Blastobasis lacticolellaBelper GardenSK34P202328/07/20231adult
Blastobasis lacticolellaDerbyshire Wild Life Trust Long CloughSK09G202312/07/20231adult
Blastobasis lacticolellaWoodland AveSK43R202307/07/20231adult
Blastobasis lacticolellaLadycroft AveSK07S202314/07/20231adult
Blastobasis lacticolellaGlossop, Shawmoor PlantationSK09F202313/07/20232adult
Blastobasis lacticolellaLadycroft Ave, BuxtonSK07S202321/07/20231adult
Blastobasis lacticolellaQuarndonSK34F202312/07/20231adult
Blastobasis lacticolellaLadycroft AveSK07S202307/07/20231adult
Blastobasis lacticolellaBelperSK34U202319/07/20232adult
Blastobasis lacticolellaLongdendale, Wildboar CloughSK09U202307/07/20232adult
Blastobasis lacticolellaDarwin ForestSK26X202326/06/20231adult
Blastobasis lacticolellaLadycroft AveSK07S202314/06/20232adult
Blastobasis lacticolellaUpper Cromford GardenSK25Y202309/06/20231adult
Blastobasis lacticolellaDarwin ForestSK26X202327/06/20232adult
Blastobasis lacticolellaBuxton SK17, UKSK07S202312/06/20231
Blastobasis lacticolellaUpper Cromford GardenSK25Y202321/06/20231adult
Blastobasis lacticolellaRolls Royce Duffield Bank House, Duffield.SK34L202313/06/20231adult
Blastobasis lacticolellaBelperSK34U202320/06/20231adult
Blastobasis lacticolellaDerbyshire Wild Life Trust Long CloughSK09G202207/11/20221adult
Blastobasis lacticolellaBuxton SK17, UKSK07S202204/08/20221
Blastobasis lacticolellaDerbyshire, England, United KingdomSK07S202218/08/20221
Blastobasis lacticolellaLong Eaton - Marlborough RoadSK43X202222/07/202220
Blastobasis lacticolellaLadycroft AveSK07S202215/07/20221adult
Blastobasis lacticolellaStaveley DerbyshireSK47H202219/07/20221adult
Blastobasis lacticolellaLadycroft AveSK07S202203/07/20221adult
Blastobasis lacticolellaOrchid WoodSK43L202221/07/20222adult
Blastobasis lacticolellaWoodland AveSK43R202216/07/20221
Blastobasis lacticolellaLadycroft AveSK07S202208/07/20221adult
Blastobasis lacticolellaBirch ValeSK08I202211/07/20222adult
Blastobasis lacticolellaLong Eaton - Marlborough RoadSK43X202229/07/202210
Blastobasis lacticolellaLadycroft AveSK07S202213/07/20221adult
Blastobasis lacticolellaBirch ValeSK08I202217/07/20221adult
Blastobasis lacticolellaAllestree, DerbySK33P202222/06/20221adult
Blastobasis lacticolellaLadycroft AveSK07S202224/06/20222adult
Blastobasis lacticolellaLong Eaton - Marlborough RoadSK43X202224/06/20223

Blastobasis adustella       Stathmopoda pedella

Copyright Tony Davison © 2025 www.derbyshiremoths.org

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