70.074 (1777) July Highflyer Hydriomena furcata (Thunberg, 1784)

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
























 
History
The earliest notification of this species is published in Stephens (1829) with the Rev. William Little recording it at Raehills (VC72).
 
Lennon (1863) stated it was common everywhere in his 'List of Lepidoptera taken near Dumfries.' K. J. Morton of Edinburgh (1900) whilst on a visit in July 1899 to Wigtownshire had found this species in the Monreith area. Gordon (1919) found it abundant among the sallows at Corsemalzie (VC74) at dusk, but very variable. Earliest date was 10th July 1905.
 
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. Pelham-Clinton during the 1960s found it at Bargrennan, Caulkerbush, Kirkbean, Palnackie, Rockcliffe and Wood of Cree.
 
During 1974-93 over 900 records were logged between the seven Rothamsted stations, and from 1992 to 2010 the trend continued with about 750 records of this abundant geometrid from various sites spread across the region.
 
Life cycle
One generation. Overwinters as an egg on the foodplant. Larvae are present April to early June, feeding by night, with pupation taking place at ground level.
 
Larval foodplants
Bilberry, Creeping Willow, Hazel, Heather and sallows.
 
Identification
All three 'highflyers' have a characteristic shape of having shoulders at the base of the forewings, together with a black diagonal dash at the apex, will separate it from the other two.
 
Habitat
Mostly woodland, but a wide variety of other sites as well.
© Keith Naylor, Knowetop Lochs SWT, 1 August 2004

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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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