Light Cahill Mayfly vs Giant Devil's Flower Mantis

Side-by-side species comparison

Attribute Light Cahill Mayfly Giant Devil's Flower Mantis
Scientific Name Heptagenia solitaria Idolomantis serrula
Order Ephemeroptera Mantodea
Family Heptageniidae Empusidae
Size 9-13 mm 80-110 mm
Habitat Rivers & Streams Forests
Diet Omnivores Omnivores
Regions North America Tanzania, Kenya
Conservation Least Concern Data Deficient

Light Cahill Mayfly

A pale-colored mayfly highly prized by fly fishers for imitating hatches. Nymphs prefer moderate current over gravel substrates.

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Did You Know?

The Light Cahill dry fly pattern, designed to mimic this species, has been used since the 1880s.

Giant Devil's Flower Mantis

A close relative of the devil's flower mantis found in the dry forests of East Africa. It has serrated leg lobes that enhance its leaf-like disguise.

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Did You Know?

Its serrated leg lobes are unique in the genus and give it a more ragged, leaf-like appearance.