Invertebrate Iridescent Virus
Iridovirus armadillidium1, known formerly as Invertebrate iridescent virus 31 (IIV-31) and informally as isopod iridovirus, is a species of invertebrate iridescent virus in the genus Iridovirus. Oniscidea (commonly known by a variety of names including woodlouse, pillbug, slater, roly-poly, potato bug, et al.) serve as hosts. Infection is associated with decreased responsiveness in the host, increased mortality and the emergence of an iridescent blue or bluish-purple colour due to the reflection of light off a paracrystalline arrangement of virions within the tissues