73.176 (2340) Middle-barred Minor Oligia fasciuncula (Haworth, 1809)

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
























 
History
Douglas Robinson (1870-71) had found it not common at sugar on Almorness (VC73) during July. 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) found it to be common and generally distributed around Wigtownshire, with the typical red and clay coloured forms occurring during June. Earliest date was 17th June 1899. Due to the difficulty of separating Oligia species the text above is as it was recorded but is to be treated with caution.
 
Sir Arthur Duncan (1909-84) during his lifetime had found it at Closeburn, Tynron and Castlehill, Dumfries (all VC72). Archibald Russell (1944) listed it as occurring near Gatehouse of Fleet (VC73) during the years 1942-43.
During 1974-93 over 200 records were recorded at the seven Rothamsted stations. From 1992 to 2010 the regular trapped sites at Kirkton, Caerlaverock WWT, Durisdeer, Kirkcudbright, Mersehead RSPB, Old Torr, Forest Moor and Carsfad at Dalry recorded most of the 260 records, with others from widely scattered sites across the region, but practically all of these have not had their genitalia checked and therefore the status is very unclear.

Form pallida Tutt
This greyish brown distinctive form occurs quite regularly over the Region and possibly should be accepted as this species without genitalia determination.
 
Life cycle
One generation. Overwinters as a larva during August to May, with pupation in a cocoon close to the ground.
 
Larval foodplants
Larvae feed on Tufted Hair-grass and other grasses.
 
Identification
There are no safe external features to identify it and genitalia examination is necessary.
 
Habitat
Wetland, open woodland and damp grassland.
 
Recorders' notes
Only take a minimum of specimens for determination at any one site.
© Keith Naylor, Milton, 25 June 2011 
© Brian Hammond, Dornockbrow, June 2011, f. pallida

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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