Main: (Tortricidae / Tortricinae)
49.052 [B&F: 1022] Cnephasia pasiuana (Hübner, [1799])


Local in gardens, woodland edges and other open areas throughout much of England, but rarer in the north; old records for Ireland, Wales and Scotland should be treated with caution. In Hampshire and on the Isle of Wight there has been an increase in the number of records received in the first decade of this century, almost certainly due to an increase in critical examination of specimens. However, the discovery that the closely related C. pumicana exists in Britain makes the verification of the true distribution of pasiuana in the county difficult and will require the re-evaluation of all historic records. Wingspan 15-20 mm. The obscure grey forewing pattern varying from pale to dark - most often pale - makes confirmed identification on external characteristics impossible, as it is indistinguishable from the closely related C. pumicana (recently added to the British list) and for pale specimens, from C. genitalana, and records can therefore only be accepted based on dissection of the genitalia. Larva feeds within flowerheads of various herbaceous plants, living between flowers spun together with silk.

Flightime guide

Records Received By Year

% of total records
Max records: 3
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20

Percentage of Total Records

Total records
Max Percentage: 0.0030993654
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20

Phenology - Adult Records

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

Phenology - Larval Records

Max records: 2
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Distribution Map

Historical distribution at tetrad resolution
Click for density map

Record Density

As above but the larger the symbol, the greater the number of records
Click for distribution map

Detail records

VC10 Isle of Wight
Freshwater (SZ38)1923-Fassnidge, WAdult
VC11 South Hampshire
Teg Down, Winchester (SU42)08-Jun-1980-Langmaid, JR; Sterling, DHLarval
Soberton (SU61)13-Jul-1985oneLangmaid, JR; Pelham-Clinton, ECAdult
Hamble Common (SU40)21-Jun-1993oneDickson, RichardAdult
Southsea (SZ69)15-Jul-1999oneLangmaid, JohnAdult
Portsmouth (SU60)15-Jul-1999oneThirlwell, Ian Adult
Chandlers Ford (SU42)16-Jul-2001oneElliott, Brian Adult
Winchester (SU42)26-Jun-2007oneWalker, Tim Adult
Funtley (SU50)25-Jul-2010oneOpie, Maurice Adult
Roydon Woods HWT Reserve (SU30)26-Jul-2010oneDickson, RichardAdult
Portsdown (SU60)23-May-2011oneAgassiz, J.R. Langmaid & D.J.L. Larval
Funtley (SU50)11-Jul-2011oneOpie, Maurice Adult
Funtley (SU50)26-Jul-2012oneOpie, Maurice Adult
Portsmouth (SU60)27-Jul-2012oneThirlwell, Ian Adult
Eastney (SZ69)14-Jun-2016oneLangmaid, John, R.J. Dickson & I.R. ThirlwellLarval
Eastney (SZ69)14-Jun-2016oneLangmaid, John Larval
Portsdown (SU60)04-Jun-2017-Langmaid, John, M.R. Young & I.R. ThirlwellLarval
VC12 North Hampshire
Greywell (SU75)23-Jul-2004oneBoswell, PAAdult
Sherborne St John (SU65)01-Aug-2005oneMontegriffo, NJAdult
Alton (SU73)05-Jul-2007twoOwen, Dave Adult
Alton (SU73)05-Jul-2007twoOwen, Dave Adult
Alton (SU73)27-Aug-2008oneOwen, Dave Adult
Weston Colley (SU53)08-Jul-2010oneGreen, David G Adult
Sherborne St John (SU65)16-Jul-2015oneMontegriffo, Nick Adult

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