Japanese Alderfly vs Turkish Owlfly

Side-by-side species comparison

Attribute Japanese Alderfly Turkish Owlfly
Scientific Name Sialis japonica Libelloides rhomboideus
Order Megaloptera Neuroptera
Family Sialidae Ascalaphidae
Size 15-25 mm wingspan 42-52 mm wingspan
Habitat Rivers & Streams Meadows
Diet Predators Predators
Regions Japan, East Asia Turkey, Eastern Mediterranean, Caucasus
Conservation Least Concern Least Concern

Japanese Alderfly

A medium-sized alderfly found in ponds and slow streams across Japan. It is one of the most common megalopterans in East Asian lowland waters.

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Did You Know?

It is one of the few megalopterans adapted to living in rice paddy fields.

Turkish Owlfly

A striking owlfly with rhombus-shaped wing markings found in Anatolia and the eastern Mediterranean. Active on warm sunny hillsides.

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Did You Know?

Its diamond-shaped wing markings are unique among European owlflies and aid in species identification.