Main: (Geometridae / Larentiinae)
70.132 [B&F: 1802] Rivulet (Perizoma affinitata) (Stephens, 1831)

 

Notes: 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.

Flightime guide
JFM AMJ JAS OND

Records Received By Year

% of total records
Max records: 14
 
90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13

Percentage of Total Records

Total records
Max Percentage: 0.01780072
 
90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13

Phenology - Adult Records

Max records: 17
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
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