Yellow Sally vs Borneo Firefly

Side-by-side species comparison

Attribute Yellow Sally Borneo Firefly
Scientific Name Isoperla fulva Pteroptyx bearni
Order Plecoptera Coleoptera
Family Perlodidae Lampyridae
Size 8-12 mm 5-7 mm
Habitat Rivers & Streams Rivers & Streams
Diet Omnivores Predators
Regions Europe Southeast Asia
Conservation Least Concern Data Deficient

Yellow Sally

A bright yellow stonefly common in European upland streams. Nymphs are omnivorous, feeding on both algae and small invertebrates.

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Did You Know?

The vivid yellow color serves no known warning function and fades quickly in preserved specimens.

Borneo Firefly

A synchronous firefly endemic to Borneo that creates dramatic light displays in riverside trees. It congregates in specific display trees night after night.

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Did You Know?

Individual display trees can host the same colony for decades, and the loss of a single tree can displace thousands of fireflies.