
Community identification
Horsehair Worm (Gordian Worm)
Gordius species / Nematomorpha
- Order & Family
- Gordioidea / Gordiidae
- Size
- 10 to 70 centimeters (4 to 28 inches) long, but extremely slender (about 1 to 3 mm wide).
Natural Habitat
Damp environments, mud, puddles, streams, water troughs, and wet soil.
Diet & Feeding
Parasitic during larval stage on insects (crickets, grasshoppers, beetles); adults do not feed.
Behavior Patterns
Larvae develop internally within insect hosts. Once fully grown, they manipulate the host to seek water, emerging as free-living aquatic adults to mate.
Risks & Benefits
Harmless to humans, pets, livestock, and plants. Benefits the ecosystem by naturally controlling populations of pest insects like crickets and grasshoppers.