Crassa unitella       Batia lambdella
28.015 BF640  –  Oecophoridae –  Oecophorinae – Batia lunaris – Lesser Tawny Crescent – (Haworth, 1828) Adult Micro:  CAT 2 – Confusion Species –       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Green –  Rare / Uncommon / Scarce   
Taxonomy:   Micro   >>  Oecophoridae  >> Oecophorinae
Other Name/s: Lesser Tawny Tubic
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
Confusion Species:  Batia lambdella
ID pointers: An attractively marked little moth. A yellowish forewing, with a distinct dark reddish-brown costa and also at the terminal area. A blackish triangular mark near the tornus. Blackish head.
Distribution:  (Last record: 29 July 2024 at Norton Lees )  –  Nationally common, found in woodlands – In Derbyshire appears to be uncommon but widespread. – Not listed in the 1988 Micro Moth book by Harrison & Sterling.
Flight Period: July /  August /  –  On the wing in July – August. Moth Activity: Nocturnal   – and is attracted to light Photographed: Yes –  Photographed By: Dave Evans  © All Rights Reserved
*** Last updated on 2 October 2025 by RP ***
Wingspan: 7-10mm
 Food Plant: Lichen
Last Recorded Year: 2024
Last Recorded By – Pete Mellor
Last Recorded General Area – Norton Lees
Selected Images:  Belper, Derbyshire – Dave Evans ©

28.015 BF640 - Oecophoridae - Oecophorinae - Batia lunaris
Batia lunaris
28.015 BF640 - Oecophoridae - Oecophorinae - Batia lunaris

 
 

Image Gallery

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Distribution Map for Batia lunaris

Found 72 records
    ↳ 11 from After 2025
    ↳ 22 from 2020 - 2024
    ↳ 39 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 – Batia lunaris

⚠️ 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: Batia lunaris
( data includes both Larvae and Adult Stages )

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


First/Last Recorded Dates: Batia lunaris
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: Batia lunaris
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Batia lunaris
AGR: -3.29%   |   Total % Change: -50.4%


CUSUM Analysis: Batia lunaris
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 8 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 2005, 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: Batia lunaris
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Batia lunaris
( 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 - Batia lunaris – 72 records available

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

Site NameTetradDateCountStageSource
BelperSK34U10/07/20251adultvc57_irecords_extract
Chaddesden GardenSK33T21/06/20251adultvc57_irecords_extract
Chaddesden GardenSK33T24/06/20251adultvc57_irecords_extract
Norton Lees, SheffieldSK38L27/06/20252adultvc57_irecords_extract
Ingleby Ave, DerbySK33L28/06/20251adultvc57_irecords_extract
Drakelow, Derbys.SK22F28/06/20251adultvc57_irecords_extract
Staveley DerbyshireSK47H27/06/20251adultvc57_irecords_extract
Markham Vale DerbyshireSK47K29/06/20251adultvc57_irecords_extract
Midway, Derbys.SK32A30/06/20251adultvc57_irecords_extract
chaddesden, derbySK33T24/06/20251adultvc57_irecords_extract
chaddesden, derbySK33T28/06/20251adultvc57_irecords_extract
BelperSK34N18/07/20241adultvc57_irecords_extract
Norton Lees, Sheffield, UKSK38L18/07/20241Adultvc57_irecords_extract
Norton Lees, Sheffield, UKSK38L19/07/20241Adultvc57_irecords_extract
Mickleover gardenSK33C18/07/20241adultvc57_irecords_extract
Chaddesden, DerbySK33T18/07/20242adultvc57_irecords_extract
Norton Lees, Sheffield (VC)SK38L29/07/20241adultvc57_irecords_extract
Drakelow, Derbys.SK22F09/07/20241adultvc57_irecords_extract
Midway, Derbys.SK32A18/07/20243adultvc57_irecords_extract
High Leas Farm, RiberSK35D28/07/20241adultvc57_irecords_extract
Chaddesden, DerbySK33T24/06/20241adultvc57_irecords_extract
Staveley DerbyshireSK47H06/07/20231adultvc57_irecords_extract
Long Eaton, Marlborough RoadSK43X07/07/20231adultvc57_irecords_extract
Woodland AveSK43R21/07/20231adultvc57_irecords_extract
Findern GardenSK33A23/06/20231Adultvc57_irecords_extract
Woodland AveSK43R19/07/20221Adultvc57_irecords_extract
BelperSK34U08/07/20221adultvc57_irecords_extract
Froggatt, Hope ValleySK27N09/07/20221adultvc57_irecords_extract
Woodland AveSK43R08/07/20211adultvc57_irecords_extract
Woodland AveSK43R18/07/20212adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y05/08/20201Adultvc57_irecords_extract
Woodland AveSK43R17/07/20202adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y12/07/20201Adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y15/07/20192Adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y19/07/20181Adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y17/07/20181Adultvc57_irecords_extract
Backgarden MarehaySK34Z20/07/20162adultvc57_irecords_extract
Backgarden MarehaySK34Z23/07/20161adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y17/07/20162Adultvc57_irecords_extract
Midway Rd,Midway,SwadlincoteSK32A13/07/20133Adultvc57_danes_bc_data
Lang Rd, Alvaston, DerbySK33R12/07/20131Adultvc57_danes_bc_data
Wood Lane,Newhall,SwadlincoteSK22V16/07/20131Adultvc57_danes_bc_data
Backgarden MarehaySK34Z25/07/20121adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y25/07/20121Adultvc57_irecords_extract
Main Street, Kings NewtonSK32Y26/07/20124Adultvc57_irecords_extract
Findern Close, BelperSK34P24/07/20122Adultvc57_danes_bc_data
Findern Close, BelperSK34P23/07/20121Adultvc57_danes_bc_data
Main St,Kings Newton,MelbourneSK32Y25/07/20121Adultvc57_danes_bc_data
Main St,Kings Newton,MelbourneSK32Y26/07/20124Adultvc57_danes_bc_data
Glebe Rise,Littleover,DerbySK33H23/07/20121Adultvc57_danes_bc_data
Bamford St,RipleySK34Z25/07/20121Adultvc57_danes_bc_data
Backgarden MarehaySK34Z26/07/20111adultvc57_irecords_extract
Bamford St,RipleySK34Z26/07/20111Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A09/07/20101Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A18/07/20081Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A28/06/20081Adultvc57_danes_bc_data
Carvers Rocks,Hartshorne,Swadlincote (old toilet block area)SK32G11/08/20071Adultvc57_danes_bc_data
Main Street, Kings NewtonSK32Y08/07/20071Adultvc57_irecords_extract
Midway Rd,Midway,SwadlincoteSK32A01/07/20061Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A30/06/20061Adultvc57_danes_bc_data
Main Street, Kings NewtonSK32Y11/07/20054Adultvc57_irecords_extract
Foremark Resr, TicknallSK32H09/07/20053Adultvc57_danes_bc_data
Main St,Kings Newton,MelbourneSK32Y11/07/20054Adultvc57_danes_bc_data
Far Cross,Cavendish Park,MatlockSK36A14/07/20051Adultvc57_danes_bc_data
Main Street, Kings NewtonSK32Y16/07/20043Adultvc57_irecords_extract
Midway Rd,Midway,SwadlincoteSK32A21/07/20043Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A16/07/20041Adultvc57_danes_bc_data
Main St,Kings Newton,MelbourneSK32Y16/07/20043Adultvc57_danes_bc_data
Midway Rd,Midway,SwadlincoteSK32A26/06/20041Adultvc57_danes_bc_data
Calke Park (Betty's Pool),TicknallSK32R29/07/19971Adultvc57_danes_bc_data
Deerlands Rd, Ashgate, ChesterfieldSK37K10/07/19941Adultvc57_danes_bc_data
Deerlands Rd, Ashgate, ChesterfieldSK37K25/06/19941Adultvc57_danes_bc_data

 
Crassa unitella       Batia lambdella

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