Fairyfly Wasp vs Spring Pygmy Firefly

Side-by-side species comparison

Attribute Fairyfly Wasp Spring Pygmy Firefly
Scientific Name Dicopomorpha echmepterygis Pleotomus pallens
Order Hymenoptera Coleoptera
Family Mymaridae Lampyridae
Size 0.139-0.240 mm 5-8 mm
Habitat Underground Underground
Diet Parasitoids Omnivores
Regions North America Eastern North America
Conservation Least Concern Not Evaluated

Fairyfly Wasp

The smallest known insect in the world at just 0.139 mm in length. Males are blind, wingless, and smaller than some single-celled organisms.

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Did You Know?

Males of this species are smaller than a paramecium — they are blind and wingless, existing solely to mate with sisters before they even leave the host egg.

Spring Pygmy Firefly

A tiny, rarely seen firefly of the eastern United States with a very short adult life span. Males produce faint, sporadic greenish flashes close to the ground.

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Did You Know?

Females are wingless and larviform, and were once classified as a completely separate species from the males.