49.267 BF1200b  –  Tortricidae –  Olethreutinae – Eucosma fulvana – Tawny Knapweed Tortrix – (Stephens, 1834) Adult Micro:  CAT 4 – Gen. Det. Required – Gen-Det-Reqd       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Black – Uncertain/Unknown – Insufficient Data   
Taxonomy:   Micro   >>  Tortricidae  >> Olethreutinae
** Photograph required / Identification write up required / **
Other Name/s: Fulvous Bell
ID Difficulty:  Red – difficult to identify – detailed examination required, often a Gen Det and/or specimen and quality photographs are required.
Confusion Species: Eucosma hohenwartiana (Common Knapweed Tortrix); Eucosma cana (Hoary Tortrix)
ID pointers: This species has recently been split and its distribution requires some clarification. It is very similar to Eucosma hohenwartiana E.cana and E.parvulana.
Distinguished by its large size and paler colour. Was previously regarded as a large, fulvous (dull brown) form of Eucosma hohenwartiana.
Distribution:  Uncertain – Harrison & Sterling shows records from five areas between 1967 – 1981. quote “Possibly only a from of E.hohenwartiana
Flight Period: June /  July /  August /  –  June – August Moth Activity: Cathemeral  Photographed: No –  Photographed By: Not Recorded
*** Last updated on 27 July 2025 by TD ***
Wingspan: 19-25mm
Food Plant: Found in areas where Greater Knapweed is known to occur.
Last Recorded By – Not Recorded
Last Recorded General Area – Not Recorded

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Distribution Map for Eucosma fulvana

Found 1 records
    ↳ 1 from After 2025
    ↳ 0 from 2020 - 2024
    ↳ 0 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 – Eucosma fulvana

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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.

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Monthly Records By Year: Eucosma fulvana
( data includes both Larvae and Adult Stages )

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


First/Last Recorded Dates: Eucosma fulvana
Adult-only & Anything [Larvae, Pupae, Adult, Mines]

Shading shows moth presence between dates

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Recordings By Year: Eucosma fulvana
( All data includes both Larvae and Adult Stages )
Annual Growth Rate (AGR): Eucosma fulvana
AGR: 0%   |   Total % Change: 0%
Eucosma fulvana
Insufficient records/data for an AGR analysis
Years Analysed: 2000 – 2025
Eucosma fulvana
Insufficient records/data for a CUSUM analysis
Years Analysed: 2000 – 2025

Hectad (10kmx10km) Coverage: Eucosma fulvana
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Eucosma fulvana
( 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 - Eucosma fulvana – 1 records available

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

TaxonSite NameTetradYearDateCountStageSource
Eucosma fulvanaMarkham Vale South TipSK47K202521/07/20253adultvc57_irecords_extract

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