Pale Triangle vs Snowborn Stonefly

Side-by-side species comparison

Attribute	Pale Triangle	Snowborn Stonefly
Scientific Name	Graphium eurypylus	Capnia atra
Order	Lepidoptera	Plecoptera
Family	Papilionidae	Capniidae
Size	6-7 cm wingspan	4-7 mm
Habitat	Rivers & Streams	Rivers & Streams
Diet	Nectar Feeders	Detritivores
Regions	Australia, Indonesia, Papua New Guinea	North America
Conservation	Least Concern	Least Concern

Pale Triangle

A fast-flying swallowtail with pale blue-green triangle markings on black wings. It frequently puddles on wet sand and mud along creek beds.

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Males form dense congregations of up to hundreds on wet riverbanks to extract minerals from mud.

A tiny black stonefly that emerges during the coldest months in northern North America. Adults are frequently observed walking on snow.

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It is active at temperatures near freezing, when virtually all other insects are dormant.