Delta-spotted Spiketail vs Cascade Damselfly

Side-by-side species comparison

Attribute Delta-spotted Spiketail Cascade Damselfly
Scientific Name Cordulegaster diastatops Thaumatoneura inopinata
Order Odonata Odonata
Family Cordulegastridae Thaumatoneuridae
Size 70-78 mm 55-65 mm
Habitat Forests Forests
Diet Omnivores Predators
Regions North America Central America
Conservation Least Concern Vulnerable

Delta-spotted Spiketail

A large spiketail of eastern North America with distinctive triangular yellow spots along its dark abdomen. It patrols forest streams with a slow, deliberate flight.

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Did You Know?

The triangular or delta-shaped abdominal spots give this impressive spiketail its common name.

Cascade Damselfly

A rare damselfly found only near waterfalls in Central American cloud forests.

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Did You Know?

Its larvae develop on wet rocks behind waterfall spray zones.