73.042 (2286) Light Knot Grass Acronicta menyanthidis menyanthidis (Esper, 1798)

Status
Resident. Scarce.
 
Flight period
J F M A M J J A S O N D
























 
History
Lennon (1860) stated he had found this species around Dumfries whilst out walking this season. By 1863, Lennon found that it was not common, but had found it at Sandyknowe (VC72). Douglas Robinson (1870-71) had found one larva on sallow at Cloke Moss (VC73). Buchanan White of Perth (1895) listed it as occurring in Colvend and Southwick parishes (VC73). Gordon (1913) had found it common at sugar on the moors around Corsemalzie, Wigtownshire, late May to early June, with twenty being collected in one night in June, 1911. Earliest date was 24th May 1898.
 
Russell (1944) during 1942-43 whilst staying at Gatehouse of Fleet had found it locally. Sir Arthur Duncan had found it at the Black Loch, Ae, Dumfries (VC72) on 2nd July 1943, while Cunningham (1952) had found it on Tinwald Downs in July, 1951.
 
During 1972-73 records came from Kirroughtree, Glengap, Clints of Dromore and Clatteringshaws Loch. Two were trapped in 1982 on the Hensol Estate, while in 1987 it was found at Cairnsmore of Fleet. From 1993 to 2010 there were just under twenty records from widely scattered sites across the region.
 
Life cycle
One generation. Overwinters as a pupa among leaf litter in a cocoon. Larvae are present during June to September.
 
Larval foodplants
Bilberry, Bog-myrtle, Bogbean, Heather and sallows.
 
Identification
Unmistakeable.
 
Habitat
Damp heathland, moorland and bogs.
 
Recorders' notes
It is not known what race occurs here.
© Brian Henderson, Mitchellslacks, 23 May 2012
© Keith Naylor per A B Duncan, Black Loch, Ae, 2 July 1943

Local distribution map

The gadget spec URL could not be found

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
 Powered by the  NBN Gateway