70.078 (1770) Chestnut-coloured Carpet Thera cognata (Thunberg, 1792)

Status
Resident. Scarce.
 
Flight period
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History
Lennon (1863) under Thera simularia had found it at Dalskairth (VC73), and under Thera simulata had stated it was not common, but had occurred at Whinney Hill (VC73). Both names being synonyms of this species. Sir Arthur Duncan (1909-84) during his lifetime had found it at Closeburn (VC72).
 
Two were caught in 1999 and five in 2001 at Torrs Heughs, Sandyhills (VC73). Another was caught in July 1999 at Float Bay, Wigtownshire, the only record for VC74.
 
Life cycle
One generation. Overwinters as a small larva during September to early June. Pupation takes place in a spinning among the leaves of Common Juniper.
 
Larval foodplants
Junipers, including garden varities.
 
Identification
The small size with rather broad rounded chestnut-coloured forewings separate it from other geometrids. A key feature is the straighter inner edge of the wider central band.
 
Habitat
Caterpillars feed on Juniper, of which there is a sparce population in the region on coastal cliffs, moorland and a few other locations.
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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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