70.133 BF1803 - Small Rivulet - Geometridae - Perizoma alchemillata

70.133 BF1803 - Geometridae - Perizoma alchemillata - Small Rivulet

Adult Macro: CAT 2 - Can be confused with other species -

- click for Adult Macro Verification Guidelines

- Generally Common / Widespread

Taxonomy: Macro >> Geometridae

ID Difficulty: amber

- care required in the identification process, as confusion with similar species is likely - quality photographs required.
Confusion Species: The Rivulet (P. affiniata)

ID pointers: Noticeably smaller than Rivulet but ground colour is a chocolate brown. There is a white zig-zag cross-band, with usually two indentations on the inner edge. Near to the base of the wing there is usually a second duller white cross band.

Distribution: A resident that is locally common and widely distributed in Derbyshire. The highest numbers are found in the southern lowlands with lower density numbers in the Peak District. The complete opposite to Rivulet (affinitata).

Flight Period: June / July / August / - On the wing June – August.