Bug Identifier
Red-backed Salamander (and a pill bug/rolly polly)
Community identification

Red-backed Salamander (and a pill bug/rolly polly)

Plethodon cinereus (salamander) and Armadillidium vulgare (pill bug)

Order & Family
Caudata, Plethodontidae (salamander) and Isopoda, Armadillidiidae (pill bug)
Size
Red-backed Salamander: 2.5 to 5 inches (6.4 to 12.7 cm) total length. Pill bug: 0.5 to 0.7 inches (1.3 to 1.8 cm) long.
See this bug in the Encyclopedia

Natural Habitat

The salamander is typically found in moist deciduous and coniferous forests under rocks, logs, and leaf litter. The pill bug lives in damp, dark places under rocks, logs, and decaying organic matter.

Diet & Feeding

Red-backed Salamander: Carnivorous, feeding on small invertebrates such as insects, mites, millipedes, and worms. Pill bug: Detritivorous, feeding on decaying plant and animal matter, fungi, and sometimes young plants.

Behavior Patterns

Red-backed Salamander: Terrestrial, nocturnal, and lungless, absorbing oxygen through its skin. It can autotomize its tail when threatened. Pill bug: Terrestrial crustacean that rolls into a ball (conglobates) when disturbed for defense. They are decomposers.

Risks & Benefits

Red-backed Salamander: No risks to humans; benefits the ecosystem by controlling invertebrate populations and serving as prey for larger animals. Pill bug: Generally harmless to humans; beneficial as decomposers, aiding in nutrient cycling and soil health. Can sometimes damage young plants in gardens if populations are high.