Small Rivulet vs Viceroy Butterfly

Side-by-side species comparison

Attribute Small Rivulet Viceroy Butterfly
Scientific Name Perizoma alchemillata Limenitis archippus
Order Lepidoptera Lepidoptera
Family Geometridae Nymphalidae
Size 18-22 mm wingspan 53-81 mm wingspan
Habitat Rivers & Streams Ponds & Lakes
Diet Herbivores Dung Feeders
Regions Europe North America
Conservation Least Concern Least Concern

Small Rivulet

A delicate small moth found in damp habitats where hemp agrimony grows. The larvae feed inside the flowers. Has subtle grey and white wing markings.

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Did You Know?

The larvae develop entirely within hemp agrimony flower heads, emerging only to pupate.

Viceroy Butterfly

Orange and black wings resembling the Monarch but with a black postmedian line across the hindwings. Once thought to be a harmless mimic, it is actually unpalatable too.

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Did You Know?

It is a Mullerian co-mimic with the Monarch, as both species are distasteful to predators.