Indian Olive Mayfly vs South American Giant Mayfly

Side-by-side species comparison

Attribute Indian Olive Mayfly South American Giant Mayfly
Scientific Name Baetis conservatus Campsurus major
Order Ephemeroptera Ephemeroptera
Family Baetidae Polymitarcyidae
Size 5-8 mm 15-25 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Omnivores
Regions South Asia South America
Conservation Least Concern Least Concern

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.

South American Giant Mayfly

A large tropical mayfly found in South American rivers and floodplains. Males have distinctive elongated forelegs used for grasping females during mating flights.

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Did You Know?

Its mass emergences from Amazonian rivers provide a critical food pulse for fish and birds.