Main: (Geometridae / Larentiinae)
70.137 [B&F: 1807] Grass Rivulet (Perizoma albulata) ([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.

Flightime guide
StageJFM AMJ JAS OND
Adult
Larval

Records Received By Year

% of total records
Max records: 39
   
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20

Percentage of Total Records

Total records
Max Percentage: 0.019431697
   
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20

Phenology - Adult Records

Max records: 42
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Phenology - Larval Records

Max records: 1
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Distribution Map

Historical distribution at tetrad resolution
Click for density map

Record Density

As above but the larger the symbol, the greater the number of records
Click for distribution map

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