Bellorchestia quoyana (formerly Talorchestia quoyana) is the largest and most common species of sandhopper endemic to New Zealand. It was originally described as Orchestia quoyana in 1840 by French zoologist Henri Milne-Edwards and transferred to the genus Bellorchestia in 2008. Its length is up to 29 millimetres (1.1 in). They help to keep the...