Aquatic Crane Fly vs Black Cocktail-Ant Rove Beetle

Side-by-side species comparison

Attribute Aquatic Crane Fly Black Cocktail-Ant Rove Beetle
Scientific Name Antocha saxicola Lomechusa pubicollis
Order Diptera Coleoptera
Family Limoniidae Staphylinidae
Size 5-8 mm 4-6 mm
Habitat Rivers & Streams Woodlands
Diet Omnivores Omnivores
Regions North America Europe, Northern Asia
Conservation Least Concern Least Concern

Aquatic Crane Fly

A small crane fly whose larvae build silken cases on submerged rocks in fast-flowing streams. Larvae are true aquatic inhabitants rather than semi-terrestrial.

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Did You Know?

Larvae are among the few crane flies that are fully aquatic throughout development, never leaving the water.

Black Cocktail-Ant Rove Beetle

A myrmecophilous rove beetle that lives inside ant nests. It secretes chemicals that trick ants into feeding and caring for it.

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Did You Know?

Its adoption glands produce substances so appealing to ants that they prioritize feeding the beetle over their own larvae.