Dineutus emarginatus
This record describes Dineutus emarginatus (species). Recorded family: Gyrinidae. Recorded order: Coleoptera.
Identification and Appearance
Note toothed front femora and broadly rounded, non-serrulate elytra apices. -Tim Loh, 19.XI.2011 Attracted to lights
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
Ponds, lakes, rivers and swamps.
Geographic Range
e US (NH-FL to MI-MO-TX)
Additional species information
Species notes from the sources
Etymology: Dineutus emarginatus (Say 1823)
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Dineutus emarginatus. 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 emarginatus (5)
Photo credits: Contributed by tom murray; Additional contributions by Mike Quinn , v belov , Marci Hess
Frequently Asked Questions About Dineutus emarginatus
What is Dineutus emarginatus?
Dineutus emarginatus is a species in the family Gyrinidae, within the order Coleoptera.
How big is Dineutus emarginatus?
♂ 8.6–11.0 mm, ♀ 8.9–10.1 mm
How do you identify Dineutus emarginatus?
Note toothed front femora and broadly rounded, non-serrulate elytra apices. -Tim Loh, 19.XI.2011
Where is Dineutus emarginatus found?
| Feature | Details |
|---|---|
| Habitat | Ponds, lakes, rivers and swamps. |
| Range | e US (NH-FL to MI-MO-TX) |