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
** 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 18 March 2025 by TD ***
Wingspan: 7-8mm
Food Plant: Mugwort
Last Recorded Year: 1977
Last Recorded By: Not Recorded
Last Recorded General Area: Not Recorded
No First Date Information Recorded

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