ColeopteraHydrophilidae – Water Scavenger Beetles

Cercyon fimbriatus

This record describes Cercyon fimbriatus (species). Recorded family: Hydrophilidae. Recorded order: Coleoptera.

Identification and Appearance

Cercyon fimbriatus - Cercyon fimbriatus
Contributed by Tim Loh; Additional contributions by v belov

distinguished by the deeply impressed, often connecting bases of the first and second striae; size and coloration highly variable The most common species of beach-dwelling Cercyon in the region

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Hydrophiloidea
Family
Hydrophilidae (Water Scavenger Beetles)
Subfamily
Sphaeridiinae
Tribe
Megasternini
Genus
Cercyon

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Habitat

Pacific beach specialist; usually among/under rotting seaweed and flotsam .

Geographic Range

NA Pacific Coast, AK to Mexico

Additional species information

Species notes from the sources

Etymology: Cercyon fimbriatus Mannerheim 1852

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Cercyon fimbriatus. 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.

Explore Coleoptera families and species →

Photos of Cercyon fimbriatus (5)

Cercyon fimbriatus - photo 1
Contributed by Tim Loh; Additional contributions by v belov
Cercyon fimbriatus - photo 2
Contributed by Tim Loh; Additional contributions by v belov
Cercyon fimbriatus - photo 3
Contributed by Tim Loh; Additional contributions by v belov
Cercyon fimbriatus - photo 4
Contributed by Tim Loh; Additional contributions by v belov
Cercyon fimbriatus - photo 5
Contributed by Tim Loh; Additional contributions by v belov

Photo credits: Contributed by Tim Loh; Additional contributions by v belov

Frequently Asked Questions About Cercyon fimbriatus

What is Cercyon fimbriatus?

Cercyon fimbriatus is a species in the family Hydrophilidae, within the order Coleoptera.

How big is Cercyon fimbriatus?

2.8‒3.5 mm

How do you identify Cercyon fimbriatus?

distinguished by the deeply impressed, often connecting bases of the first and second striae; size and coloration highly variable

Where is Cercyon fimbriatus found?
FeatureDetails
HabitatPacific beach specialist; usually among/under rotting seaweed and flotsam .
RangeNA Pacific Coast, AK to Mexico

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Tim Loh; Additional contributions by v belov. Contributors retain copyright over their individual contributions.