Photo © Dave Green
Barred Rivulet
Perizoma bifaciata
Checklist Number70.134 [B&F: 1804]
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: | bifaciata |
| Authority: | (Haworth, 1809) |
Local on chalk downland and other habitats on calcareous soils, including woodland rides and waste ground, in England, Wales and southern Scotland. In Hampshire and on the Isle of Wight found wherever the foodplant grows, which is mainly on the chalk, with occasional wanderers elsewhere. Wingspan 20-26 mm. Fairly unmistakable. Larva feeds on seeds of Red Bartsia, 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)
