Superorder Peracarida (Peracarida (Amphipods and Isopods))
Order Isopoda (Isopods)
Suborder Oniscidea (Woodlice)
~100 spp. in 37 genera of 15 families in our area, incl. 27 adventive spp. in 20 genera of 12 families(1), close to 4,000 spp. total(2)
In Armadillidiidae, the uropods are shorter than the last abdominal segment(3); members of most other families cannot roll into a ball and have uropods longer than the last abdominal segment. Compare Porcellio scaber (Porcellionidae) and Armadillidium nasatum (Armadillidiidae) here:
wherever cool, dark, moist places are available to shelter woodlice from dryness and heat during the day
Plant material, usually dead. If live plants are soft and moist enough on the outside, they will eat them and sometimes do damage.
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