Photo © Keith Tailby

Flax Tortrix

Cnephasia asseclana

Checklist Number
49.051 [B&F: 1021]

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

Classification

Family:Tortricidae
Subfamily:Tortricinae
Genus:Cnephasia
Species:asseclana
Authority:([Denis & Schiffermüller], 1775)

Common in gardens, farmland and other open areas throughout much of the British Isles. In Hampshire and on the Isle of Wight widespread and common. Wingspan 15-18 mm. Distinguished from C. pasiuana by the usually stronger and more variegated forewing pattern with a relatively narrow median fascia. Smaller than C. stephensiana but with similar dark markings so could quite easily be confused with small specimens of that species. Can be determined with certainty only by dissection of the genitalia. Larva polyphagous on various herbaceous plants, living within a spun or rolled leaf.

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)