ColeopteraHydrophilidae – Water Scavenger Beetles

Sphaeridium marginatum

This record describes Sphaeridium marginatum (species). Recorded family: Hydrophilidae. Recorded order: Coleoptera.

Identification and Appearance

Most similar to S. bipustulatum . See Berge Henegouwen (1989).

Classification

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

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

Habitat and Range

Geographic Range

Native to Palaerctic. Range in North America is unknown due to former synonymy with S. bipustulatum , but it is expected to be widely distributed in US and southern Canada like other species in the genus.

Additional species information

Species notes from the sources

Etymology: Sphaeridium marginatum Fabricius, 1787

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Sphaeridium marginatum. 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.

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Frequently Asked Questions About Sphaeridium marginatum

What is Sphaeridium marginatum?

Sphaeridium marginatum is a species in the family Hydrophilidae, within the order Coleoptera.

How big is Sphaeridium marginatum?

5.0-6.7 mm

How do you identify Sphaeridium marginatum?

Most similar to S. bipustulatum . See Berge Henegouwen (1989).

Where is Sphaeridium marginatum found?

Range: Native to Palaerctic. Range in North America is unknown due to former synonymy with S. bipustulatum , but it is expected to be widely distributed in US and southern Canada like other species in the genus.