Photo © Mike Wall

Thyraylia nana

Checklist Number
49.133 [B&F: 0968]

Verification
Record will normally be accepted but photo evidence may be required - check with CMR if not sure of identity

Classification

Family:Tortricidae
Subfamily:Tortricinae
Genus:Thyraylia
Species:nana
Authority:(Haworth, 1811)

Common in birch woodland and on heathland throughout much of Britain. Frequent in Hampshire, but only one old record from the Isle of Wight. Wingspan 9-12 mm. A distinctive species, at once recognised by its small size and characteristic grey and ochreous general coloration, and the broad median fascia of the forewing with its outer margin outward-oblique from the costa and the inner margin diffuse and often confluent with the ill-defined basal fasciae [Bradley]. Larva feeds within catkins of Downy Birch and Silver Birch, over-wintering in a cocoon.

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)

No Larval records to show.