Porcellionides pruinosus
. Porcellionides pruinosus, also commonly referred to as the Powder Blue Isopod, or Powder White Isopod is a species of isopods. It is referred to as this due to its blueish-gray powdered coloration on the carapace.

Taxonomy
Kingdom: Animalia Phylum: Arthropoda Class: Malacostraca Order: Isopoda Family: Porcellionidae Genus: Porcellionides
Overview
Porcellionides pruinosus is a species of terrestrial isopod in the family Porcellionidae. The species is easily distinguished due to its powdery appearance. P. pruinosus typically measures around 5-12 mm in length, and appear grey-blueish in color with a powdery appearance. This powdery appearance plays a role in water management and also aids in predator avoidance.