Olophrum

Erichson, 1839

Species Guides

Olophrum is a of rove beetles (Staphylinidae: Omaliinae) distributed across Eurasia and North America. The genus contains at least seven recognized North American , including four Holarctic species (O. latum, O. boreale, O. consimile, O. rotundicolle), one eastern North American (O. obtectum), and two western North American species (O. cascadense, O. idahoense). Species-level has been revised with lectotype designations and synonymies established.

Olophrum by (c) carnifex, some rights reserved (CC BY), uploaded by carnifex. Used under a CC-BY license.

Olophrum by (c) Owen Strickland, some rights reserved (CC BY), uploaded by Owen Strickland. Used under a CC-BY license.

Olophrum by (c) Joss Carr, some rights reserved (CC BY), uploaded by Joss Carr. Used under a CC-BY license.

Pronunciation

How to pronounce Olophrum: //ˌɒləˈfrʌm//

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Identification

North American can be distinguished using the key provided in Klimaszewski (1983), which relies on morphological characters including body shape, pronotal and elytral proportions, and male genitalia. O. cascadense and O. idahoense were described as new species based on distinctive morphological features separating them from .

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Distribution

Holarctic distribution spanning Eurasia and North America. In North America: recorded from northern California, eastern Oregon, southern Idaho, and eastern North America. GBIF records indicate presence in Denmark, Norway, and Sweden.

More Details

Taxonomic revision

Klimaszewski (1983) provided the definitive revision of North American Olophrum, establishing new synonymies: O. bernhauerianum, O. recticolle, and O. recticolle curtipenne = O. consimile; O. quesneli = O. boreale; O. brevicolle = O. latum. Lectotypes were designated for O. marginatum, O. parvulum, O. convexum, and O. convexicolle.