Photo © Robin Turner
Rivulet
Perizoma affinitata
Checklist Number70.132 [B&F: 1802]
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: | affinitata |
| Authority: | (Stephens, 1831) |
Common in open woodland, hedgerows, roadside verges and chalk downland throughout much of the British Isles. In Hampshire and on the Isle of Wight local and rather uncommon in open woodland where the foodplant flourishes. Wingspan 24-30 mm. The most likely confusion species is Small Rivulet P. alchemillata, which is smaller and has two teeth on the extension of the dark basal area into the white band; Rivulet has a single tooth. Larva feeds on Red Campion, 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)
