Often confused with Pillbugs due to the similarity in looks, but not closely related to them. Found both of these guys on wood when walking through the forest, looking for bugs to photograph. They're harmless little fellers.
Wikipedia:
"Pillbugs (woodlice of the family Armadillidiidae, also known as pill woodlice) can be confused with pill millipedes of the order Glomerida. Both of these groups of terrestrial segmented arthropods are about the same size. They live in very similar habitats, and they can both roll up into a ball. Pill millipedes and pillbugs appear superficially similar to the naked eye. This is an example of convergent evolution.
Pill millipedes can be distinguished from woodlice on the basis of having two pairs of legs per body segment instead of one pair like all isopods. Pill millipedes have twelve to thirteen body segments, with a large shield-like posterior segment, whereas woodlice have eleven, and small posterior segments. In addition, pill millipedes are smoother, and resemble normal millipedes in overall colouring and the shape of the segments."
