73.313 (2081) White-line Dart Euxoa tritici (Linnaeus, 1761)

Status
Resident. Local.
UK BAP Priority Species.
 
Flight period
J F M A M J J A S O N D
























 
History
Lennon (1863) had found it on the Tinwald Downs (VC72). K. J. Morton of Edinburgh (1900) whilst on a visit in July 1899 to Wigtownshire had found this species in the Monreith area. Gordon (1913) had found it local on the coast and exceedingly abundant on Glenluce golf course in late July 1905 when thousands apparently were on ragwort. He also found it very variable.
 
During 1969-72 it was found at Sandhead and Port William (VC74), and two years later, 1974-78, it was recorded eight times from Gatehouse of Fleet and Caerlaverock Rothamsted stations.
 
In August 1987, Bernard Skinner found it was still present at Sandhead. From 1990 to 2010 there were 56 records of which 24 came from Mersehead RSPB, with the rest being found along the Solway coast.
 
Life cycle
One generation. Overwinters as an egg. Larvae are present late March to July, with pupation underground.
 
Larval foodplants
A wide variety of herbaceous plants, icluding bedstraws.
 
Identification
Up to six short dark arrowheads near the outer edge, with a white streak parallel to the costa will aid identity.
 
Habitat
Heathland, moorland, downland, coastal sand-dunes and cliffs.
© Keith Naylor, Claymoddie, 21 July 2006

Local distribution map

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Distribution map displays records from the National Biodiversity Network (See terms and conditions).

The following datasets are included:

  • Butterfly Conservation - Macro-moth provisional distribution for the British Isles (excluding the Republic of Ireland) from the National Moth Recording Scheme
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