15.021 BF314  –  Gracillariidae –  Gracillariinae – Leucospilapteryx omissella – Mugwort Stilt – (Stainton, 1848) Adult Micro:  CAT 2 – Confusion Species –       Leaf-miner:  CAT L – The leaf or a Photo required – reared and possibly dissected       PDF Icon – click for General Verification Guidelines  |   PDF Icon – click for Specific Verification Guidelines
Black – Uncertain/Unknown – Insufficient Data        purple – Leaf Miner
Taxonomy:   Micro   >>  Gracillariidae  >> Gracillariinae
** Identification write-up required **
Other Name/s: Mugwort Slender
ID Difficulty:  amber  – care required in the identification process, as confusion with similar species is likely – quality photographs required.
ID pointers: None at this time
Distribution:  (Last record: 1977 )  –  Uncertain due to insufficient data and restricted range of the food-plant in the county – records from Matlock and Long Eaton 1977. Localised species in Britain where Mugwort is in abundance.
Flight Period: May /  August /  –  Two generations in May & August Mine Period: July /  August /  September /   – The larvae mine the leaves of Mugwort initially as a long gallery on the underside of the leaf. Eventually forming a blotch or blister on the upper side of the leaf.
The leaf then turns yellow and then purple.
Moth Activity: Cathemeral  Photographed: No –  Photographed By: Not Recorded
*** Last updated on 6 May 2025 by RP ***
Wingspan: 7-8mm
Food Plant: Mugwort
Last Recorded Year: 1977
Last Recorded By – Not Recorded
Last Recorded General Area – Not Recorded

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Distribution Map for Leucospilapteryx omissella

No records found

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 – Leucospilapteryx omissella

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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: Leucospilapteryx omissella
( data includes both Larvae and Adult Stages )
No data returned from the database.

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


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

Shading shows moth presence between dates

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

Hectad (10kmx10km) Coverage: Leucospilapteryx omissella
( data includes both Larvae and Adult Stages )

Flight Periods – Indicative –vs– Recorded Data
Leucospilapteryx omissella
( 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.

Mine Periods – Indicative –vs– Recorded Data
Leucospilapteryx omissella
( data includes both Larvae and Adult Stages )

Mine 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 mine periods [month/s]. The coloured lines represent the actual months seen mining, from site observation records received between 2020-2025.

Records Behind the Map and Charts - Leucospilapteryx omissella – 0 records available

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

No records found for Leucospilapteryx omissella.

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