Nationally scarce (Nb) in heaths and open woodland in parts of the British Isles. In Hampshire locally common in the north-east and around the New Forest. Not recorded from the Isle of Wight to date. Wingspan 22-25 mm. Day-flying, the earliest clearwing to emerge in spring. The early stages may be sought during the winter months, but synthetic pheromone lures are used to attract males nowadays, and this has led to a marked increase in records of the species in recent years. Larva feeds within bark of Silver Birch, Downy Birch and Alder, making characteristic tunnels under the bark of birch trees and stumps.
Flightime guide |
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A | M | J |
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O | N | D |
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Detail records |
Site | Date | Quantity | Recorder | Stage |
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VC8 Wiltshire (Hants county) |
West Park (SU11) | 28-Jun-2002 | seven | Green, DG | Larval |
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VC11 South Hampshire |
(SZ69) | 1951 | - | - | - |
Southsea (SZ69) | 26-Jun-1976 | one | Langmaid, JR | Adult |
(SZ19) | 1981 | - | - | - |
Crab Wood NR (SU42) | 1981 | nine | Bell, RA | Adult |
(SU41) | 1981 | - | - | - |
(SU32) | 1981 | - | - | - |
(SU30) | 1981 | - | - | - |
(SU30) | 1981 | - | - | - |
Crab Wood NR (SU42) | 1981 | nine | Bell, RA | Larval |
(SU42) | 1981 | - | - | - |
Emer Bog NR (SU32) | 22-Apr-1984 | - | Langmaid, JR; Sterling, DH, PH & MJ | Larval feeding signs |
Netley Common (SU41) | 27-May-1991 | - | Budd, PA | Adult |
Netley Common (SU41) | 27-May-1996 | - | Budd, PA | - |
Roydon Common (SU30) | 1998 | - | Budd, PA | - |
Roydon Woods NR (SU30) | 1998 | - | Budd, PA | - |
Roydon Woods HWT Reserve (SU30) | 20-May-1998 | - | Budd, PA | Larval |
Roydon Woods HWT Reserve (SU30) | 28-May-1998 | - | Budd, PA | Larval |
Roydon Woods NR (SU30) | 1999 | - | Budd, PA | - |
Roydon Woods HWT Reserve (SU30) | 25-May-1999 | one | Budd, PA | Adult |
Bagnum Bog, NF (SU10) | 04-Aug-2000 | - | Smith, MN | - |
Hurn (SZ19) | 02-Aug-2006 | two | Jeffes, M | Pupal |
Dibden Purlieu (SU40) | 14-Jul-2013 | one | Chapman, RA | Adult |
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VC12 North Hampshire |
(SU76) | 1951 | - | - | - |
(SU85) | 1961 | one | BRC | - |
Fleet Pond (SU85) | 02-Jun-1976 | one | Appleton, D | Adult |
(SU66) | 1981 | - | - | - |
(SU85) | 1981 | - | - | - |
(SU85) | 1981 | - | - | - |
(SU75) | 1981 | - | - | - |
(SU66) | 1981 | - | - | - |
(SU75) | 1981 | - | - | - |
Bartley Heath (SU75) | 1987 | - | Dobson, AH | Adult |
Burnt and Padworth Commons (SU66) | 11-May-1989 | - | Pickles, AJ | Adult |
Silchester Common (SU66) | 26-May-1991 | one | Langmaid, JR; Heckford, RJ; Baker, BR; Robbins, J | Pupal |
Bartley Heath (SU75) | 29-Jun-1991 | - | Clarke, JH | Cocoon |
Alice Holt (SU84) | 1992 | - | Willmott, KJ | Adult |
Broxhead Common (SU83) | 14-Mar-1992 | - | McCormick, RF | Larval |
Bartley Heath (SU75) | 19-Apr-1992 | 100 | Clarke, JH | Larval |
Hook Common HWT reserve (SU75) | 04-May-1992 | - | McCormick, RF | Pupal |
Bartley Heath (SU75) | 16-May-1992 | five | Clarke, JH | Adult |
Bentley Station Meadow (SU74) | 1993 | - | Willmott, KJ | Adult |
Hook Common HWT reserve (SU75) | 1993 | - | Cook, RR | Larval |
Yateley Common (SU85) | 1993 | - | Davis, AM | Larval |
Yateley Common (SU85) | 26-Mar-1993 | - | Langmaid, JR; Goater, B | Pupal |
Bartley Heath (SU75) | 02-May-1993 | 20 | Clarke, JH | Larval |
Bentley Station Meadow (SU74) | 28-Aug-1998 | - | Green, DG | Larval |
Bartley Heath (SU75) | 22-May-1999 | six | Dobson, AH | Pupal |
Yateley Heath (SU85) | 10-Jun-2000 | one | Collins, A | - |
Yateley Common (SU85) | 10-Jun-2000 | one | Norriss, TJ; Collins, A; Davis, AM | Adult |
Yateley Common (SU85) | 21-Jun-2001 | one | Davis, AM | Adult |
Yateley Common (SU85) | 21-Jun-2001 | one | Davis, AM | Adult |
Fleet Pond (SU85) | 04-May-2003 | one | Edmunds, RD | Pupal |
Silchester Common (SU66) | 22-May-2004 | one | Guy, SM | Adult |
Silchester Common (SU66) | 23-May-2004 | three | Guy, SM | Adult |
Silchester Common (SU66) | 14-May-2005 | one | Guy, SM | Adult |
Silchester Common (SU66) | 15-May-2005 | four | Dennis, GJ | Adult |
Old Basing (SU65) | 29-Jun-2006 | one | Andrews, J | Adult |
Old Basing (SU65) | 06-Jul-2006 | one | Andrews, J | Adult |
Bramshott Common (SU83) | 04-May-2015 | one | Swann, A | Adult |
Silchester Common (SU66) | 16-May-2015 | one | Baker, CL | Adult |
Silchester Common (SU66) | 16-May-2015 | one | Baker, CL | Adult |
Silchester Common (SU66) | 10-May-2017 | one | Dennis, GJ | Adult |
Silchester Common (SU66) | 25-May-2017 | one | Dennis, GJ | Adult |
Silchester Common (SU66) | 17-May-2018 | three | Dennis, GJ | Adult |
Pamber Forest (SU66) | 18-May-2018 | two | Dennis, GJ | Adult |
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