2451 Blue Underwing (Catocala fraxini) (Linnaeus, 1758) - (Noctuidae / Catocalinae)

 

Status: Migrant
Notes: Commonly known as Clifden Nonpareil after the location where it was first recorded in Britain; this is not used here as the name is not reflective of the species' wider distribution, appearance or ecology.

Rare immigrant from north-eastern Europe, appearing as a migrant in southern and eastern England, the species was temporarily established in Kent and the Norfolk Broads in the past. In Hampshire and on the Isle of Wight, a rare immigrant that has been found in all three vice-counties. Up to the 1995, there had been about twenty records altogether, many of which are old and are not yet been updated on the county database. Since 2006, the species has started to be recorded more regularly, for example, at Ventnor and Totland on the Island, and at Brockenhurst in the New Forest, and there is the possibility that some of these individuals may have originated from deliberate release of captive stock. Wingspan male 84-100mm, female 98-112mm. Larva feeds on Aspen, and it is probably now breeding locally in places in southern England, although this has yet to be proved.

Flightime guide
JFM AMJ JAS OND

Records Received By Year

% of total records
Max records: 11
                       
90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10

Percentage of Total Records

Total records
Max Percentage: 0.008869537
                       
90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10

Phenology - Adult Records

Max records: 7
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Distribution Map

Historical distribution at tetrad resolution
Click for density map

Record Density

As above but the larger the symbol, the greater the number of records
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