73.194 (2258) The Chestnut Conistra vaccinii (Linnaeus, 1761)

Status
Resident. Common.
 
Flight period
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History
Lennon (1863) under Cerastis vaccinnii stated it to be very common, then under Cerastis spadicea, a synonym, he had found it in the Crichton Institution Garden. Gordon (1913) found The Chestnut very abundant and generally distributed in Wigtownshire. It also came to sugar and appeared variable. Sir Arthur Duncan (1909-84) during his lifetime had found it at Closeburn, Tynron and Castlehill, Dumfries (all VC72).
 
During 1974-92 there were a lot of records from six of the seven Rothamsted stations, Caerlaverock not recording it. Then from 1992 to 2010 the vast majority of the records came from trapping at Kirkton and Durisdeer (VC72), Cally Woods and Mersehead RSPB (VC73), with scattered records from elsewhere in thos two VCs. Just two sites in Wigtownshire during the same period, Glenwhan Gardens at Dunragit and Forest Moor producing a handful of records between them.
 
Life cycle
One generation. Overwinters as an adult, being active when its mild. Larvae are from late April to June. Pupation taking place in an underground cocoon about two months later.
 
Larval foodplants
Larvae feed on a range of broadleaved trees, as well as docks.
 
Identification
The Chestnut is generally paler than the confusion species, Dark Chestnut, with a broader forewing and blunt apex.
 
Habitat
Wide range of habitats, usually with trees.
 
Recorders' notes
Great care required in separating from the rarer Dark Chestnut.
© Keith Naylor, Auchenskeoch, 27 September 2010

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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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