Species Account

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Summary Data

Season (Adult / Immature):

National Status: Local

Local Status: Uncommon and thinly distributed and restricted resident.

Local Record: Grade 2   See here for explanation

Flight time: Jun-Aug.

Forewing: 11-16mm.

Foodplant: Bulrush.

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 recorded190920041909
Year last recorded201020102010
Number of records17815386
Number of individuals25524558
Unique positions784164
Unique locations684144
Adult records17315376
Immature records000

For the region, we have a total of 386 records from 144 sites. Earliest record on file is in 1909.


1292 Calamotropha paludella 05
© Julian Francis
1292 Calamotropha paludella 04
© Julian Francis
1292 Calamotropha paludella 03
© Julian Francis
1292 Calamotropha paludella 02
© M Parsons/Butterfly Conservation
1292 Calamotropha paludella 01
© Tom Morris

Species Account

For further information refer UK Moths.

Davey, P., 2009: A local species in southern England found in large fens and marshes, the larva feeding on bulrush (Typha latifolia). In Dorset, the moth is local and colonises nutrient-rich ponds, flooded pits and ditches, mainly in the Poole Basin, wherever bulrush is dominant. Adults fly around their watery habitats for an hour or so and later range more widely, with dispersal a relatively frequent occurrence across the county.

Conservation agencies managing sites containing bulrush-rich habitat, for example Stanpit (Christchurch Borough Council) or Norden (Dorset Wildlife Trust) should include this species in their management plans.

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