Odacanthini
Guides
Colliuris
Long-necked Ground Beetles
A genus of ground beetles in the family Carabidae, tribe Odacanthini, containing more than 90 described species. Species exhibit wing dimorphism as an adaptive trait. Some species resemble tiger beetles in appearance, which can lead to misidentification by collectors.
Colliuris caymanensis
Colliuris caymanensis is a small ground beetle in the tribe Odacanthini, endemic to the Cayman Islands. It was originally described by Darlington in 1947 and was previously treated as a subspecies of C. tetrastigma before being elevated to full species status. Like other members of the genus Colliuris, it is a slender, ant-mimicking carabid beetle.
Colliuris pensylvanica
Long-necked Ground Beetle
Colliuris pensylvanica is a small ground beetle in the family Carabidae, tribe Odacanthini, commonly known as the long-necked ground beetle. Adults measure 5.8–7.2 mm in length. The species has undergone extensive taxonomic revision, with multiple historical names now synonymized under the current valid name. It occurs across a broad geographic range in North America and the Caribbean.