ColeopteraDytiscidae – Predaceous Diving Beetles

Nartus sinuatus

This record describes Nartus sinuatus (species). Recorded family: Dytiscidae. Recorded order: Coleoptera.

Identification and Appearance

Nartus sinuatus - Nartus sinuatus
Contributed by Tim Loh; Additional contributions by v belov , Claude Tessier

Black with dark rufous legs; posterior margin of pronotum arched just before hind angles ( 3 ) An uncommonly seen/collected species, most likely due to habitat inaccessibility.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Adephaga
Family
Dytiscidae (Predaceous Diving Beetles)
Subfamily
Colymbetinae
Tribe
Colymbetini
Genus
Nartus

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

Habitat and Range

Habitat

ponds with dense emergent vegetation; also bogs ( 3 )

Geographic Range

transcontinental in the north (BC-WA to NB-MA) ( 3 )

Additional species information

Species notes from the sources

Etymology: Nartus sinuatus (LeConte)

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Nartus sinuatus. 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 Nartus sinuatus (5)

Nartus sinuatus - photo 1
Contributed by Tim Loh; Additional contributions by v belov , Claude Tessier
Nartus sinuatus - photo 2
Contributed by Tim Loh; Additional contributions by v belov , Claude Tessier
Nartus sinuatus - photo 3
Contributed by Tim Loh; Additional contributions by v belov , Claude Tessier
Nartus sinuatus - photo 4
Contributed by Tim Loh; Additional contributions by v belov , Claude Tessier
Nartus sinuatus - photo 5
Contributed by Tim Loh; Additional contributions by v belov , Claude Tessier

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

Frequently Asked Questions About Nartus sinuatus

What is Nartus sinuatus?

Nartus sinuatus is a species in the family Dytiscidae, within the order Coleoptera.

How big is Nartus sinuatus?

9.2-10.9 mm ( 3 )

How do you identify Nartus sinuatus?

Black with dark rufous legs; posterior margin of pronotum arched just before hind angles ( 3 )

Where is Nartus sinuatus found?
FeatureDetails
Habitatponds with dense emergent vegetation; also bogs ( 3 )
Rangetranscontinental in the north (BC-WA to NB-MA) ( 3 )

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 , Claude Tessier. Contributors retain copyright over their individual contributions.