Mecodema quoinense
Mecodema quoinense is a large-bodied ground beetle of the genus "Mecodema", an endemic New Zealand carabid, which is found in the Tararua Ranges, North Island above about 1000 m. It is named after the type locality Mount Quoin, but specimens have been found on Mount Holdsworth. This species is in Britton's "spiniferum" group and can be distinguished from other "Mecodema" species by the very distinctive shape of the male genitalia.