About Omus dejeanii Reiche, 1838
This species has the scientific name Omus dejeanii Reiche, 1838. Night-stalking tiger beetles, which belong to the genus Omus within the subfamily Cicindelinae, are a group of tiger beetles that fall under the Carabidae family. The genus Omus is placed in the tribe Omini, and it is considered the most primitive genus of tiger beetles. Omus is grouped in Omini alongside the North American genus Amblycheila and the African genus Platychile. The genus Omus currently contains five recognized species, and Omus dejeanii (the Greater night-stalking tiger beetle) is the largest species in the genus, with individuals measuring between 15 and 20 mm. Populations of Omus are common terrestrial arthropods found in old growth forests, specifically in duff habitats of the western coastal portions of North America. Field studies have recorded that two recognized species of Omus are still present in forested areas of Powell Butte Nature Park, Portland, Oregon, USA: these are Omus audouini and Omus dejeanii. This species is known to occur in the Western Hemisphere, and its range is discontinuous. Approximately 12 species from three genera related to Omus are found in fragments of coastal temperate forests of British Columbia, California, and Oregon.
