Eyed Elater Glowworm vs Split-banded Owlfly

Side-by-side species comparison

Attribute Eyed Elater Glowworm Split-banded Owlfly
Scientific Name Phengodes fusciceps Ascaloptynx appendiculatus
Order Coleoptera Neuroptera
Family Phengodidae Ascalaphidae
Size 15-25 mm (females) 42-55 mm wingspan
Habitat Woodlands Woodlands
Diet Omnivores Predators
Regions Eastern United States Eastern United States
Conservation Least Concern Least Concern

Eyed Elater Glowworm

A railroad worm beetle whose larviform females emit light from paired organs along the body. Males are short-lived, winged, and do not glow.

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Did You Know?

Females produce both green light from their body segments and red light from their head, resembling a tiny railroad train at night.

Split-banded Owlfly

A striking North American owlfly with a bold dark band across each forewing. Inhabits dry grasslands and open woodland in the eastern states.

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Did You Know?

Males defend aerial territories and engage in dramatic dogfight-like chases with rival males.