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Nationally scarce (Nb) in open calcareous grassland in south-eastern England, from Dorset and Wiltshire to Kent, southern Wales and western Ireland. In Hampshire and on the Isle of Wight recorded recently only from Old Basing in the north of the county, Roydon Woods in the south, and Rew Down, Ventnor, on the Island. Wingspan 19-22 mm. The most likely confusion species are A. kaekeritziana and A. bipunctosa, which see for differences. Larva feeds on Greater Knapweed, living within a spun or rolled leaf.
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Flightime guide |
| Stage | J | F | M |
A | M | J |
J | A | S |
O | N | D |
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Detail records |
| Site | Date | Quantity | Recorder | Stage |
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| VC10 Isle of Wight |
| Sandown (SZ58) | 1893 | - | IWNHS | Adult |
| Cranmore (SZ38) | 1900 | one | Blair, Dr K.G. | Adult |
| Sandown (SZ58) | 07-Sep-1900 | - | Prout, LB | Adult |
| Sandown (SZ58) | 1714 | - | Prout, LB | Adult |
| Sandown (SZ58) | 30/08/1909 | - | Prout, LB | Adult |
| Freshwater (SZ38) | 1950 | one | Blair, Dr K.G. | Adult |
| Ventnor (SZ57) | 02-Aug-1987 | - | Langmaid, JR; Pelham-Clinton, EC | Larval |
| Ventnor (SZ57) | 04-Aug-2003 | one | Elliott, Brian & Langmaid, John | Larval |
| Compton Down (SZ38) | 21-Jun-2013 | - | Beavan, SD; Heckford, RJ | Larval |
| Afton Down (SZ38) | 01-Oct-2014 | one | Westerhoff, Diana & Jones, Richard E | Adult |
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| VC11 South Hampshire |
| Roydon Woods HWT Reserve (SU30) | 19-Jul-1998 | one | Budd, PA | Adult |
| Chandlers Ford (SU42) | 15-Aug-2005 | one | Elliott, B | Adult |
| Botley Wood (SU50) | 11-Dec-2018 | one | Opie, Maurice | Adult |
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| VC12 North Hampshire |
| Martyr Worthy (SU53) | 1962 | - | Ffennell, DWH | Adult |
| Porton Down (SU23) | 24-Jul-1994 | two | Langmaid, JR; Goater, B; Edmunds, HA | Larval |
| Old Basing (SU65) | 07-Aug-2004 | one | Andrews, J | Adult |
| Old Basing (SU65) | 07-Aug-2004 | one | Andrews, J | Adult |
| Cholderton (SU24) | 27-Jul-2018 | one | Norriss, Tim, Henry Edmunds | Adult |
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