River Midge vs Sparkling Jewelwing

Side-by-side species comparison

Attribute River Midge Sparkling Jewelwing
Scientific Name Rheotanytarsus exiguus Calopteryx xanthostoma
Order Diptera Odonata
Family Chironomidae Calopterygidae
Size 3-5 mm 45-50 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Omnivores
Regions Europe Europe, Africa
Conservation Least Concern Least Concern

River Midge

A small filter-feeding midge that builds silken nets on submerged stones in flowing water. Larvae are among the most abundant invertebrates in clean streams.

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Did You Know?

Larvae build tiny fan-shaped silk nets that function like miniature versions of caddisfly catch-nets.

Sparkling Jewelwing

A southwestern European demoiselle closely related to the Banded Demoiselle. Males have broad dark wing bands and a distinctive yellow underside to the mouth.

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Did You Know?

It can be distinguished from the Banded Demoiselle by the yellow underside of its lower lip.