Species Account

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Distribution


 
 

Summary Data


Season (Adult / Immature):

National Status: Vagrant/Accidental

Local Status: Very rare migrant.

Local Record: Grade 4   See here for explanation

Flight time: Jun-Aug.

Forewing: 18mm.

Foodplant:

IMPORTANT - Please note that the maps and accounts are provisional, subject to change and further update.  The whole dataset still needs to go through the final verification process and it is likely that a very small number of records will not satisfy the present requirements and there are other records that have not been formally submitted.  The information is for guidance only.

Record breakdown:

 VC9Region
Year first recorded19581958
Year last recorded20062006
Number of records510
Number of individuals510
Unique positions48
Unique locations36
Adult records510
Immature records00

For the region, we have a total of 10 records from 6 sites. Earliest record on file is in 1958.
 

Photos


2404 Eastern Bordered Straw 03
© Paul Harris
2404 Eastern Bordered Straw 02
© Paul Harris
2404 Eastern Bordered Straw 01
© Dave Foot

Species Account


Similar species: 2400 Scarce Bordered Straw and 2403 Bordered Straw.

For further information refer UK Moths.

Davey, P., 2009: A very rare immigrant species and first recorded in Britain in 1958 and then in 1992, but with increasing frequency this century. It is headquartered in the sub-tropics including north Africa, and is an immigrant to southern Europe, the larva feeding on globe thistle (Echinops exaltatus) and bean caper (Zygophyllum fabago). On 9 May 1958 a south-westerly airflow brought the first British example to Dorset. A further four examples have been recorded in recent years at light traps in the county, and all but one are likely to have originated south of 35 deg. N over north-west Africa: Iwerne Minster, on 9 May 1958 (H Moore), West Bexington, on 25 June 2003, 12 August 2006 (R Eden), Durlston, on 14 May 1992 (B Skinner), 1 June 2006 (P Davey). However, the second example of 2006 (see photo) may well have been a local-bred specimen due to its amazing dark colouration; a persistent northerly airflow precluded the possibility of immigration during the first fortnight of August.

The moth is similar to Scarce Bordered Straw2400 and Bordered Straw2403. Diagnostics include, respectively: a series of conspicuous dots parallel to edge of wing Bordered Straw has a single prominent black dot close to the tornus; more contrast between ground colour and colour of sub-terminal band Scarce-bordered Straw tends to be unicolorous.

 

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