Species Account

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Distribution


 
 

Summary Data


Season (Adult / Immature):

National Status: Local

Local Status: Scarce

Local Record: Grade 4   See here for explanation

Flight time: One generation, Jul-Aug

Forewing: 9-11mm.

Foodplant: Red Bartsia.

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:

 VC9VC11Region
Year first recorded190319871903
Year last recorded201119972011
Number of records1023210
Number of individuals2003406
Unique positions47298
Unique locations38280
Adult records923190
Immature records102

For the region, we have a total of 210 records from 80 sites. Earliest record on file is in 1903.
 

Photos


1804 Barred Rivulet 02
© Paul Harris
1804 Barred Rivulet 01
© Dave Foot

Species Account


For further information refer UK Moths.

Davey, P., 2009: A species occurring over all but northern Britain, the larva feeding in the seed capsules of red bartsia (Odontites vernus) and eyebright (Euphrasia nemorosa). In Dorset, the moth is local and at low density on chalky unimproved grassland and verge habitat; it occurs regularly on Portland, at Weymouth, Badbury Rings and Durlston, where larvae have been found on red bartsia. Elsewhere, records are thinly scattered across various habitat and soil types, hinting at occasional dispersal. Old records suggest it was more widespread in the past, and loss of unimproved grassland on chalky soils has evidently precipitated a contraction in the range of this species.
 

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