Species Account

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Summary Data

Season (Adult / Immature):

National Status: Nationally Scarce B

Local Status: Rare and very local resident.

Local Record: Grade 3   See here for explanation

Flight time: Jul-Aug.

Forewing: 10-13mm.

Foodplant: Wild Marjorum

IMPORTANT - Please note that the maps and accounts are provisional, subject to change and further update.  The whole dataset still needs to go through the final verification process and it is likely that a very small number of records will not satisfy the present requirements and there are other records that have not been formally submitted.  The information is for guidance only.

Record breakdown:

Year first recorded18411841
Year last recorded20042004
Number of records2142
Number of individuals1632
Unique positions1632
Unique locations1632
Adult records1326
Immature records12

For the region, we have a total of 42 records from 32 sites. Earliest record on file is in 1841.


1512 Merrifieldia baliodactylus 04 larval feeding signs
© Jack Oughton
1512 Merrifieldia baliodactylus 04 larvae
© Jack Oughton
1512 Merrifieldia baliodactylus 03 larvae
© Jack Oughton
1512 Merrifieldia baliodactylus 02
© Jack Oughton
1512 Merrifieldia baliodactylus 01
© M Parsons/Butterfly Conservation

Species Account

Davey, P., 2020: Dingy White Plume Merrifieldia baliodactylus: Restricted to England, and more often met with across southern counties, the larva feeds on wild marjoram Origanum vulgare. In Dorset, the moth occurs within unimproved tall-sward grassland and around scrub on alkaline soils where wild marjoram is able to flourish, mainly in the north-east of the county, but also within the quarried landscapes on the Isle of Portland.

See background to species accounts.  Index of Vernacular names - Search - Random Species