Species Account

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Summary Data

Season (Adult / Immature):

National Status: Nb

Local Status: Rare and very local resident.

Local Record: Grade 4   See here for explanation

Flight time: Sep-Apr, (hibernates).

Forewing: 24-29mm.

Foodplant: Thistles, Creeping Cinquefoil, Common Restharrow, others.

Regional breakdown:

Year first recorded18831857184618831883
Year last recorded19801984194519991883
Number of records9913151
Number of individuals32260
Unique positions7911141
Unique locations7911141
Adult records6811121
Immature records00000

For the county, we have a total of 47 records from 42 sites. First recorded in 1846.


sorry, no pictures available for this species yet

Species Account

Sutton & Beaumont, 1989: This species has declined seriously over the whole country since the middle of the century with no obvious cause (Skinner, 1984). There are few recent Yorkshire records.

2012 (CHF): Sword-grass has been lost from the south and east of its range in a dramatic decline and is now only found in Scotland and the Isle of Man. This is a huge change from Porritt's time when he described it as "generally common" in 1886 and "throughout the county and in many districts in abundance" in 1907. It was certainly much more common than Red Sword-grass at that time. The last documented Yorkshire record was at Bellflask in 1999 but it was not photographed and no specimen was kept so this must be regarded as unconfirmed. The record before this was at Harrogate Sewage Farm in 1982 but again we have no specimen to verify this.

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