White Miller Mayfly vs Pedilus Beetle

Side-by-side species comparison

Attribute White Miller Mayfly Pedilus Beetle
Scientific Name Ephoron virgo Notoxus monoceros
Order Ephemeroptera Coleoptera
Family Polymitarcyidae Anthicidae
Size 12-18 mm 3-5 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Detritivores
Regions Europe, Western Asia Europe
Conservation Least Concern Least Concern

White Miller Mayfly

A white-bodied European mayfly that emerges in enormous synchronized swarms at dusk. Females are unique among mayflies in that they moult directly into the spinner stage.

💡

Did You Know?

Swarms at bridges and streetlights can be so thick they cause traffic hazards.

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.

💡

Did You Know?

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