Common Pillbug (Armadillidium vulgare)
(Subphylum: Crustacea; Class: Malacostraca; Order: Isopoda; Suborder Oniscidea, Family: Armadillidiidae)
Invertebrates Around Las Vegas, Wildlife Around Las Vegas
Common Pillbug (Armadillidium vulgare)

General: Common Pillbugs (Armadillidium vulgare) are small terrestrial creatures of damp places with a hinged exoskeleton like an armadillo and the ability to roll up into a tightly closed ball. Pillbugs have seven pairs of legs, but they have no tail.

Common Pillbugs are native to the Mediterranean region and Europe, but have been widely introduced around the world. In some areas, they are among the most common invertebrates species.

Pillbugs usually are inactive during the day and hide under things to stay cool and reduce water loss. At night, they come out to feed on decaying organic matter such as garden mulch, grass clippings, and compost.

Common Pillbug (Armadillidium vulgare) Pillbug; note the seven pairs of legs (plus one visible pair of antennae). Typical of crustaceans, they have two pairs of antennae, but one is large and the other is small and hidden under the carapace.
Common Pillbug (Armadillidium vulgare) Pillbug; note the ability to roll up into a tightly closed ball (this one is starting to open up).
Common Pillbug (Armadillidium vulgare) Common Pillbug (Armadillidium vulgare)
Common Pillbug (Armadillidium vulgare) Common Pillbug (Armadillidium vulgare)

Note: All distances, elevations, and other facts are approximate.
copyright; Last updated 100320

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