Pedilus Beetle vs Graceful Winter Stonefly

Side-by-side species comparison

Attribute Pedilus Beetle Graceful Winter Stonefly
Scientific Name Notoxus monoceros Capnia gracilaria
Order Coleoptera Plecoptera
Family Anthicidae Capniidae
Size 3-5 mm 4-6 mm
Habitat Rivers & Streams Rivers & Streams
Diet Detritivores Detritivores
Regions Europe North America
Conservation Least Concern Least Concern

Pedilus Beetle

A small ant-like beetle with a distinctive forward-pointing horn on the thorax. Found on sandy ground and under debris. The horn function is unknown but may be used in combat.

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Did You Know?

Males bear a prominent forward-pointing thoracic horn whose function remains a mystery to entomologists.

Graceful Winter Stonefly

A minute stonefly of cold North American headwater streams emerging in winter. Females are often short-winged or wingless.

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Did You Know?

Females sacrifice flight ability for greater egg production by reducing or eliminating their wings.