Finger-net Caddisfly vs Blue Ghost Firefly

Side-by-side species comparison

Attribute Finger-net Caddisfly Blue Ghost Firefly
Scientific Name Philopotamus montanus Phausis reticulata
Order Trichoptera Coleoptera
Family Philopotamidae Lampyridae
Size 10-14 mm 7-12 mm
Habitat Rivers & Streams Forests
Diet Omnivores Omnivores
Regions Europe Eastern North America
Conservation Least Concern Not Evaluated

Finger-net Caddisfly

A medium caddisfly with golden-brown wings. Larvae spin finger-shaped silken nets in fast-flowing water to capture ultrafine particles of organic matter.

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Did You Know?

Its silk nets have an incredibly fine mesh, filtering particles as small as one micrometer.

Blue Ghost Firefly

A firefly producing a steady pale blue-white glow rather than flashing. Females are larviform and wingless, glowing softly on the forest floor.

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Did You Know?

Males fly slowly just above the leaf litter, creating an ethereal drifting glow that gives them their ghostly name.