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Nationally scarce (Na) on chalk downland in parts of south-eastern England, from Dorset to Sussex. In Hampshire last reported in November 1984, from Crawley in vice-county 12, but it flies very late in the season and requires a concerted effort to locate; considered likely to persist on the chalk in the Alton area, and perhaps elsewhere. Not recorded from the Isle of Wight to date. Wingspan 35-44 mm. Variable and rather nondescript for a 'prominent', but males can be recognised by their strongly bipectinate antennae. Larva feeds on Field Maple, over-wintering as an egg.
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Flightime guide |
| Stage | J | F | M |
A | M | J |
J | A | S |
O | N | D |
| Adult |
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Detail records |
| Site | Date | Quantity | Recorder | Stage |
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| VC11 South Hampshire |
| Horndean (SU71) | 1900 | - | Fassnidge, W | Adult |
| Bournemouth (SZ09) | 10-Nov-1938 | one | Brown, SCS | Adult |
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| VC12 North Hampshire |
| Farringdon (SU73) | 01-Dec-1952 | two | Robinson, HS | Adult |
| Farringdon (SU73) | 11-Nov-1966 | 10 | Sadler, EA | Adult |
| Northwood (SU43) | 10-Nov-1983 | one | Bell, RA | Adult |
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