Stripetail Stonefly vs Speckled Peter Stonefly

Side-by-side species comparison

Attribute Stripetail Stonefly Speckled Peter Stonefly
Scientific Name Isoperla bilineata Paragnetina media
Order Plecoptera Plecoptera
Family Perlodidae Perlidae
Size 10-15 mm 15-22 mm
Habitat Rivers & Streams Rivers & Streams
Diet Predators Predators
Regions Eastern North America North America
Conservation Least Concern Least Concern

Stripetail Stonefly

A yellow-green stonefly with two distinctive dark stripes on its tails. It is common in clean North American streams during spring.

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Did You Know?

Its distinctively striped cerci make it one of the easiest North American stoneflies to identify.

Speckled Peter Stonefly

A medium-sized patterned stonefly of eastern streams with distinctive speckled wing markings. Nymphs are voracious predators among cobbles.

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Did You Know?

Nymphs have been observed actively stalking prey rather than simply ambushing passing invertebrates.