Bisnius hesperidum
This record describes Bisnius hesperidum (species). Recorded family: Staphylinidae. Recorded order: Coleoptera.
Identification and Appearance

Member of the Albionicus group, in which there are 2 species (this and B. albionicus (Mannerheim)) in North America . The 2 species are most reliably distinguished via study of the male genitalia .
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Polyphaga
- Superfamily
- Staphylinoidea
- Family
- Staphylinidae (Rove Beetles)
- Subfamily
- Staphylininae
- Tribe
- Staphylinini
- Genus
- Bisnius
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
Wet habitats: marshes, margins of ponds, flood debris along creeks, in litter along beaches
Geographic Range
Pacific NW: s.BC, WA, OR
Additional species information
Species notes from the sources
Etymology: Bisnius hesperidum Smetana 1995
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Bisnius hesperidum. Species-specific details appear above.
Group overview
Coleoptera is the largest order of insects with over 400,000 described species, representing ~25% of all known animal species and ~40% of all insects. In the U.S. alone, nearly 30,000 beetle species have been identified.
Ecological role of the group
Beetles are prominent decomposers, especially in forests, breaking down dead wood and recycling nutrients. As predators, they reduce populations of pest insects. Many species are also important pollinators of flowering plants.
Economic and practical significance of the group
Beetles have major economic significance: leaf beetles (Chrysomelidae) and weevils (Curculionoidea) are among the most destructive agricultural pests globally, costing billions annually, while predatory species like ladybugs provide natural pest control.
Recorded sources for this group: Britannica, Smithsonian, NCSU Entomology. Imported estimates may describe particular regions or reporting periods.
Photos of Bisnius hesperidum (5)
Photo credits: Contributed by Tim Loh
Frequently Asked Questions About Bisnius hesperidum
What is Bisnius hesperidum?
Bisnius hesperidum is a species in the family Staphylinidae, within the order Coleoptera.
How big is Bisnius hesperidum?
5.0-7.0 mm
How do you identify Bisnius hesperidum?
Member of the Albionicus group, in which there are 2 species (this and B. albionicus (Mannerheim)) in North America . The 2 species are most reliably distinguished via study of the male genitalia .
Where is Bisnius hesperidum found?
| Feature | Details |
|---|---|
| Habitat | Wet habitats: marshes, margins of ponds, flood debris along creeks, in litter along beaches |
| Range | Pacific NW: s.BC, WA, OR |
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