Main: (Tortricidae / Olethreutinae)
49.196 [B&F: 1111a] Bactra lacteana Caradja, 1916


Nationally scarce (Nb) in damp meadows, marshes and on river-banks in parts of southern England. Only discovered in Britain in 1996, and the true extent of distribution not yet known. In Hampshire has been recorded in numbers on Plaitford Common (in vice-county 8, on the Hampshire-Wiltshire border) and at Ashurst. Not recorded from the Isle of Wight to date. Wingspan 10-17 mm. Similar to B. lancealana, from which reliably separated only by dissection of the genitalia, but specimens showing two short blackish sub-apical streaks are potentially this species. Larva feeds within stems of Sedge.

Flightime guide

Records Received By Year

% of total records
Max records: 4
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19

Percentage of Total Records

Total records
Max Percentage: 0.0019521624
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19

Phenology - Adult Records

Max records: 5
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Distribution Map

Historical distribution at tetrad resolution
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Record Density

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

VC8 Wiltshire (Hants county)
Plaitford Common (SU21)31-Jul-1998-Langmaid, JR; Palmer, SMAdult
Plaitford Common (SU21)06-Aug-1998-Langmaid, JR; Thirlwell, IRAdult
Plaitford Common (SU21)25-Jul-2001-Langmaid, JR; Elliott, B; Goater, BAdult
VC11 South Hampshire
Portsmouth (SU60)28-Jul-2005oneThirlwell, IRAdult
Ashurst, NF (SU31)24-Jul-2008-Langmaid, JR; Young, MR, Young, JE; Palmer, SMAdult
Dockens Water, Ringwood (SU11)02-Jun-2012nineLewis, CAdult
Stubbington (SU50)18-Jun-2013oneHoughton, DAdult
Southsea (SZ69)18-Jun-2013oneLangmaid, JRAdult
Crab Tree Bog (SU20)28-Jul-2013oneAshworth, AAdult
Funtley (SU50)22-Aug-2013oneOpie, MAdult
South Gorley (SU11)05-Aug-2014twoHackett, SAdult
Southsea (SZ69)13-Aug-2014oneLangmaid, JRAdult
Burley (SU20)01-Aug-2017oneAshworth, AAdult
Ashurst, NF (SU31)05-Jul-2018-Langmaid, JR; Young, MRAdult
Horsea Island (SU60)24-Jul-2018oneOpie, MAdult

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