Numerical-taxonomy
Guides
Elaphrus americanus americanus
A subspecies of ground beetle in the family Carabidae, Elaphrus americanus americanus is the nominate subspecies of the E. americanus species complex. The complex comprises two Nearctic species: E. americanus and E. finitimus. This subspecies is distinguished from a western subspecies, E. americanus sylvanus, through morphometric analysis of body proportions and other phenetic characters.
Elaphrus americanus sylvanus
Elaphrus americanus sylvanus is a western subspecies of ground beetle in the family Carabidae, described by Goulet in 1982 from Oregon. The subspecies belongs to the Elaphrus americanus species complex, which was previously treated as a single species but later recognized as comprising multiple distinct taxa based on morphological analysis. Members of the genus Elaphrus are known for their strong resemblance to tiger beetles (Cicindelinae), often leading to misidentification by collectors.