Dineutus angustus
This record describes Dineutus angustus (species). Recorded family: Gyrinidae. Recorded order: Coleoptera.
Identification and Appearance

male profemur toothed. may be difficult to separate from D. discolor
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Adephaga
- Family
- Gyrinidae (Whirligig Beetles)
- Subfamily
- Gyrininae
- Genus
- Dineutus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Habitat
mainly in streams
Geographic Range
se. US (s.GA-n.FL-e.AL)
Additional species information
Species notes from the sources
Etymology: Dineutes angustus LeConte 1878
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Dineutus angustus. 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 Dineutus angustus (3)
Photo credits: Contributed by v belov; Additional contributions by Mike Quinn
Frequently Asked Questions About Dineutus angustus
What is Dineutus angustus?
Dineutus angustus is a species in the family Gyrinidae, within the order Coleoptera.
How big is Dineutus angustus?
♂ 9.4–10.8 mm, ♀ 9.8–10.2 mm
How do you identify Dineutus angustus?
male profemur toothed. may be difficult to separate from D. discolor
Where is Dineutus angustus found?
| Feature | Details |
|---|---|
| Habitat | mainly in streams |
| Range | se. US (s.GA-n.FL-e.AL) |
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