Snail-Case Caddisfly vs Red-bordered Metalmark

Side-by-side species comparison

Attribute Snail-Case Caddisfly Red-bordered Metalmark
Scientific Name Helicopsyche mexicana Caria ino
Order Trichoptera Lepidoptera
Family Helicopsychidae Riodinidae
Size 5-7 mm 28-35 mm wingspan
Habitat Rivers & Streams Heathland
Diet Omnivores Omnivores
Regions North America, Central America South Texas through Mexico and Central America
Conservation Least Concern Least Concern

Snail-Case Caddisfly

A remarkable caddisfly whose larva builds a coiled sand-grain case resembling a tiny snail shell. Found in warm streams of the American Southwest.

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Did You Know?

Cases so closely resemble snail shells that they were originally described as a new genus of freshwater snail.

Red-bordered Metalmark

A dark metalmark butterfly with bright red-orange borders along the wing edges and metallic blue-green scaling at the wing bases. It perches with wings spread flat.

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Did You Know?

Males are fiercely territorial, perching on sunlit leaf surfaces and darting out at any passing insect.