Smoky Alderfly vs Hyacinth Glider

Side-by-side species comparison

Attribute Smoky Alderfly Hyacinth Glider
Scientific Name Sialis fuliginosa Miathyria marcella
Order Megaloptera Odonata
Family Sialidae Libellulidae
Size 12-16 mm 35-42 mm
Habitat Ponds & Lakes Ponds & Lakes
Diet Omnivores Omnivores
Regions Europe North America, South America
Conservation Least Concern Least Concern

Smoky Alderfly

A European alderfly distinguished from S. lutaria by its preference for flowing water rather than still ponds. It has dark smoky wings and a blackish body.

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Did You Know?

This alderfly is a reliable indicator of clean running water and is one of the first species to disappear when streams become polluted.

Hyacinth Glider

A delicate dragonfly with a violet-tinted thorax and a slender banded abdomen. It is common in the Americas from the southern US to Argentina.

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Did You Know?

Its larvae often develop among water hyacinth roots, giving the species its common name.