Elaphrus finitimus
Casey, 1920
Elaphrus finitimus is a of ground beetle in the Elaphrinae, described by Casey in 1920. It was previously treated as part of the Elaphrus americanus complex but was recognized as a distinct species through numerical taxonomic analysis. The Elaphrus is known for species that strongly resemble tiger beetles (Cicindelinae), often causing misidentification by collectors.
Pronunciation
How to pronounce Elaphrus finitimus: /ɛˈlæfrəs fɪˈnɪtɪməs/
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Identification
Members of Elaphrus are frequently confused with tiger beetles due to their similar overall shape and appearance. Elaphrus finitimus can be distinguished from the closely related E. americanus through morphometric analysis; the two were separated based on numerical taxonomic methods including discriminant analysis of morphological characters.
Images
Distribution
North America; recorded from the United States.
Human Relevance
The Elaphrus is notable among coleopterists for causing frequent misidentification with tiger beetles, which can lead to confusion in specimen curation and field observations.
Similar Taxa
- Elaphrus americanusPreviously treated as ; separated by numerical taxonomic analysis based on morphological differences.
- Cicindela spp. (tiger beetles)Strong superficial resemblance in overall body shape and appearance; Elaphrus are true ground beetles (Carabidae: Elaphrinae) rather than tiger beetles (Cicindelinae).
More Details
Taxonomic History
Elaphrus finitimus was originally described by Casey in 1920 and later treated as part of E. americanus sensu Lindroth (1961). Numerical taxonomic analysis subsequently supported its recognition as a distinct separate from E. americanus.