About Railroad Worm
A beetle larva with 11 pairs of green-glowing lateral organs and a red-glowing headlamp — the only land animal that produces two different colors of bioluminescence simultaneously.
Did You Know?
The railroad worm is the only terrestrial animal that glows in two colors at once — green along its sides like railway car windows and red on its head like a locomotive.
How to Identify Railroad Worm
Railroad Worm (Phrixothrix hirtus) belongs to the order Coleoptera, family Phengodidae. Adults typically measure 30-65 mm (larvae).
Railroad Worm Habitat
Railroad Worm is found in underground habitats, particularly across South America. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
Railroad Worm Diet and Feeding
Railroad Worm has an omnivorous diet, feeding on both plant and animal matter. This dietary flexibility allows it to exploit a wide range of food sources in its environment.
Where Is Railroad Worm Found?
Railroad Worm can be found in South America, where it inhabits underground environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where Railroad Worm can be found
Is Railroad Worm Dangerous?
Railroad Worm is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.
Railroad Worm Role in Nature
Railroad Worm plays a role in its ecosystem as part of the food web, serving as both consumer and prey. Insects like Railroad Worm are a vital food source for birds, bats, and other wildlife, and contribute to the overall health and balance of their environment.
Seasonal Activity
Frequently Asked Questions About Railroad Worm
What does Railroad Worm look like?
The Railroad Worm typically measures 30-65 mm (larvae).
Where is Railroad Worm found?
The Railroad Worm is found in South America and typically inhabits underground environments.
What does Railroad Worm eat?
The Railroad Worm has an omnivorous diet, feeding on both plant and animal matter.
Is Railroad Worm dangerous to humans?
The Railroad Worm is generally harmless to humans. It does not bite or sting and poses no significant health risk.
What is an interesting fact about Railroad Worm?
The railroad worm is the only terrestrial animal that glows in two colors at once — green along its sides like railway car windows and red on its head like a locomotive.
Cite This Page
APA:
InsectDiscover. (2026). Railroad Worm (Phrixothrix hirtus). Retrieved from https://insectdiscover.com/insect/railroad-worm
MLA:
"Railroad Worm." InsectDiscover, https://insectdiscover.com/insect/railroad-worm.