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 4   See here for explanation

Flight time: -

Forewing: 4-5mm.

Foodplant: Various sedges.

Regional breakdown:

Year first recorded1945188820042009
Year last recorded2008188820052009
Number of records2121
Number of individuals2121
Unique positions2111
Unique locations2111
Adult records2121
Immature records0000

For the county, we have a total of 6 records from 5 sites. First recorded in 1888.


0629 Biselachista utonella 01
© Charles Fletcher, 17 Jul 2005

Species Account

Argus 47, 2001-04:
VC64. Bishop Monkton, 28.7.2004 det. HEB (D&DB). NEW VICE-COUNTY RECORD.

Argus 58, 2009:
VC65. Hutton Conyers 4.8.2009 gen. det. HEB (CHF). NEW VICE-COUNTY RECORD.


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