Photo © Mike Wall

Grass Rivulet

Perizoma albulata

Checklist Number
70.137 [B&F: 1807]

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

Classification

Family:Geometridae
Subfamily:Larentiinae
Genus:Perizoma
Species:albulata
Authority:([Denis & Schiffermüller], 1775)

Local on calcareous grassland, sand-hills and coastal shingle throughout the British Isles, a species of conservation concern under the UK Biodiversity Action Plan. Local on good quality grassland, particularly on the downs, in Hampshire but quite rare in the Isle of Wight. Wingspan 20-26 mm. Paler than most Perizoma species, and lacking the two dark spots on the sub-terminal fascia of Twin-spot Carpet P. didymata. Larva feeds on seeds of Yellow-rattle, over-wintering as a pupa.

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)