Sulphur Mayfly vs Papuan Synchronous Firefly

Side-by-side species comparison

Attribute Sulphur Mayfly Papuan Synchronous Firefly
Scientific Name Ephemerella dorothea Pteroptyx cribellata
Order Ephemeroptera Coleoptera
Family Ephemerellidae Lampyridae
Size 6-9 mm 5-8 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Herbivores
Regions North America Oceania, Papua New Guinea
Conservation Least Concern Least Concern

Sulphur Mayfly

A small pale yellow mayfly that produces reliable evening hatches on eastern North American streams. One of the most important species for fly anglers.

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Did You Know?

Sulphur mayfly hatches are so predictable in timing that experienced anglers can arrive at the stream within minutes of the first emergence.

Papuan Synchronous Firefly

A tropical firefly with a soft brownish body and prominent light organs. Found in New Guinea, it forms large synchronous aggregations in riverside vegetation during the wet season.

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Did You Know?

This species helps researchers study how synchronous flashing evolved independently across different Pteroptyx lineages in the Indo-Pacific.