Photo © Mike Wall

Eucosma parvulana

Checklist Number
49.268 [B&F: 1200a]

Verification
Record requires retention of specimen until confirmed, and may require dissection. Consult with CMR if unsure

Classification

Family:Tortricidae
Subfamily:Olethreutinae
Genus:Eucosma
Species:parvulana
Authority:(Wilkinson, 1859)

Distribution and status poorly known owing to confusion with hohenwartiana, it is likely that it will be found in dry open areas wherever the foodplant grows. Formerly regarded as a diminutive form of E. hohenwartiana, and distinguishable from this species with certainty only on the basis of the larval foodplant (Common Knapweed in E. hohenwartiana and Saw-wort in E. parvulana). In Hampshire known from Leckford and Botley Wood. One From Totland in 2022 was the first for the island since a (possibly dubious) record in the 19th century, and the first for our area as a whole for over a decade. Wingspan 14-19 mm. On average smaller (although small specimens of hohenwartiana also occur), and the forewings are more uniformly coloured - strongly contrasted specimens are more likely to be hohenwartiana. No reliable distinguishing genitalic feature has been determined. Larva feeds within flowerheads of Saw-wort.

The abundance in each month is indicated as follows:

No records
Very occasional
Irregular
Uncommon
Off-peak, but not unusual
Off-peak, but not unusual
Main flight time
J F M A M J J A S O N D
Adult
Larval

Records by week (adult)

Records by week (larval)

VC10 Isle of Wight

Site Date Quantity Recorder Stage
Freshwater (SZ38)1880-RidingAdult
Totland (SZ38)27/07/2022oneRachel TerryAdult

VC11 South Hampshire

Site Date Quantity Recorder Stage
Botley Wood (SU51)15/07/2004-Richard J DicksonAdult
Funtley (SU50)16/07/2004oneRichard J DicksonAdult
Botley Wood (SU50)23/07/2004twoRichard J DicksonAdult
Botley Wood (SU51)29/07/2005-Richard J DicksonAdult
Southsea (SZ69)25/08/2008oneJ R LangmaidAdult
Denny Wood, NF (SU30)27/07/2012oneMaurice OpieAdult

VC12 North Hampshire

Site Date Quantity Recorder Stage
Leckford Estate (SU33)09/07/1981-J R Langmaid, D H SterlingAdult
Leckford Estate (SU33)07/07/1985-J R Langmaid, D H, P H SterlingAdult
Leckford Estate (SU33)10/07/1986-J R Langmaid, D H SterlingAdult
Leckford Estate (SU33)11/07/1987-J R Langmaid, D H SterlingAdult
Leckford Estate (SU33)07/08/1993oneJ R Langmaid, D H SterlingAdult
Leckford Estate (SU33)11/09/1997-J R Langmaid, B GoaterLarval
Leckford Estate (SU33)15/07/2002-J R Langmaid, B ElliottAdult
Leckford Estate (SU33)16/07/2002-J R Langmaid, D J L AgassizAdult
Leckford Estate (SU33)12/09/2002-J R Langmaid, B ElliottLarval
Leckford Estate (SU33)23/07/2003-J R Langmaid, M R YoungAdult
Leckford Estate (SU33)03/09/2003-J R Langmaid, D J L AgassizLarval