70.011 (1708) Single-dotted Wave Idaea dimidiata (Hufnagel, 1767)

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
























 
History
Buchanan White (1895) listed it as occurring in Colvend parish (VC73). Gordon (1919) had found it common along woodsides around Corsemalzie, Wigtownshire. Earliest date was 19th June 1911. K. J. Morton of Edinburgh (1900) whilst on a visit in July 1899 to Wigtownshire had found this species in the Monreith area.
 
No further records until the advent of the Rothamsted stations during the mid 1970s until early 1980s, then another pause until it started to be recorded steadily during the 1990s with more observers.
 
It continued to be regularly recorded during the first ten years of the 21st century.
 
Life cycle
One generation. Overwinters as a larva, during August to May. Pupates in plant debris from a slight cocoon.
 
Larval foodplants
Larvae feed on Cow Parsley, Burnet Saxifrage and Hedge Bedstraw.
 
Identification
The dark blotches near the trailing corner on the straw-white forewing is diagnostic for the species.
 
Habitat
Range of open habitats, often damp.
© Keith Naylor, Kippford, 5 August 2004

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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