Harvester Butterfly vs Indian Olive Mayfly

Side-by-side species comparison

Attribute Harvester Butterfly Indian Olive Mayfly
Scientific Name Feniseca tarquinius Baetis conservatus
Order Lepidoptera Ephemeroptera
Family Lycaenidae Baetidae
Size 28-33 mm wingspan 5-8 mm
Habitat Rivers & Streams Rivers & Streams
Diet Sap Feeders Omnivores
Regions Eastern North America South Asia
Conservation Least Concern Least Concern

Harvester Butterfly

The only carnivorous butterfly in North America, whose caterpillar feeds on woolly aphids rather than plants. Adults are small and orange-brown with dark spotting.

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Did You Know?

The caterpillar camouflages itself with the waxy white filaments of its aphid prey while feeding.

Indian Olive Mayfly

A small olive-colored mayfly found in Himalayan streams and foothill rivers. Nymphs are agile swimmers adapted to moderate currents.

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Did You Know?

It is one of the most commonly encountered mayfly species in Indian freshwater biomonitoring studies.