Twin-spotted Firefly vs Sri Lankan Relict Dragonfly

Side-by-side species comparison

Attribute Twin-spotted Firefly Sri Lankan Relict Dragonfly
Scientific Name Photinus tanytoxus Lankanectes corrugatus
Order Coleoptera Odonata
Family Lampyridae Gomphidae
Size 6-9 mm 5-6 cm
Habitat Woodlands Forests
Diet Predators Predators
Regions North America Sri Lanka
Conservation Least Concern Endangered

Twin-spotted Firefly

A small North American firefly with a bright greenish-yellow flash and distinctive twin light organs visible on the last abdominal segments. Males produce a slow, pulsing glow while in flight.

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Did You Know?

This species produces lucibufagins, toxic steroids that make it unpalatable to predators like spiders and birds.

Sri Lankan Relict Dragonfly

A rare clubtail dragonfly endemic to Sri Lanka's wet zone streams. It has declined sharply due to water pollution and deforestation.

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Did You Know?

Sri Lanka's dragonfly fauna includes over 120 species, with more than half found nowhere else.