Giant Pill Millipede
Zephronia siamensis
About Giant Pill Millipede
A large pill millipede that can roll into a perfect sphere the size of a golf ball when threatened. The body is dark brown to black with smooth, overlapping plates.
Did You Know?
When rolled into a ball, the armor plates lock together so tightly that most predators cannot pry them apart.
How to Identify Giant Pill Millipede
Giant Pill Millipede (Zephronia siamensis) belongs to the order Sphaerotheriida, family Zephroniidae. Adults typically measure 30-50 mm diameter when rolled.
Giant Pill Millipede Habitat
Giant Pill Millipede is found in caves habitats, particularly across Southeast Asia (Thailand, Malaysia, Vietnam, Laos, Cambodia). This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
Giant Pill Millipede Diet and Feeding
Giant Pill Millipede feeds on wood and bark, often boring into timber. Wood-feeding insects contribute to the decomposition of dead trees and nutrient cycling in forest ecosystems.
Where Is Giant Pill Millipede Found?
Giant Pill Millipede can be found in Southeast Asia (Thailand, Malaysia, Vietnam, Laos, Cambodia), where it inhabits caves environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where Giant Pill Millipede can be found
Is Giant Pill Millipede Dangerous?
Giant Pill Millipede 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.
Giant Pill Millipede Role in Nature
Giant Pill Millipede is part of the food web as a primary consumer, feeding on plant material. It serves as an important food source for birds, bats, amphibians, and other insectivores, connecting plant energy to higher trophic levels.
Seasonal Activity
Frequently Asked Questions About Giant Pill Millipede
What does Giant Pill Millipede look like?
The Giant Pill Millipede typically measures 30-50 mm diameter when rolled.
Where is Giant Pill Millipede found?
The Giant Pill Millipede is found in Southeast Asia (Thailand, Malaysia, Vietnam, Laos, Cambodia) and typically inhabits caves environments.
What does Giant Pill Millipede eat?
The Giant Pill Millipede feeds on wood and bark, often boring into timber.
Is Giant Pill Millipede dangerous to humans?
The Giant Pill Millipede is generally harmless to humans. It does not bite or sting and poses no significant health risk.
What is an interesting fact about Giant Pill Millipede?
When rolled into a ball, the armor plates lock together so tightly that most predators cannot pry them apart.
Cite This Page
APA:
InsectDiscover. (2026). Giant Pill Millipede (Zephronia siamensis). Retrieved from https://insectdiscover.com/insect/giant-pill-millipede
MLA:
"Giant Pill Millipede." InsectDiscover, https://insectdiscover.com/insect/giant-pill-millipede.