Pest Organisms / Common Pillbug
Identification
for Common Pillbug
A mature pillbug is a small, oval, slightly domed creature. Its shell runs from gray to brown, and a grown one spans about a third to three-quarters of an inch (roughly 8.5 to 18 mm). Source: https://ask.ifas.ufl.edu/publication/IN1099 Its hard shell splits into a seven-segmented mid-body (the pereon) and a rear section (the pleon), with a single pair of antennae on the head to sense its surroundings. Source: https://ask.ifas.ufl.edu/publication/IN1099 The giveaway is its ability to roll into a closed ball when disturbed, a defensive trick that sets it apart from most look-alikes. Source: https://ask.ifas.ufl.edu/publication/IN1099