Nephus intrusus
This record describes Nephus intrusus (species). Recorded family: Coccinellidae. Recorded order: Coleoptera.
Identification and Appearance

Identification notes
Det. R. Gordon, 1977
Classification
- Kingdom
- Animalia
- Phylum
- Arthropoda
- Class
- Insecta
- Order
- Coleoptera (Beetles)
- Suborder
- Polyphaga
- Superfamily
- Coccinelloidea
- Family
- Coccinellidae (Lady Beetles)
- Subfamily
- Scymninae
- Tribe
- Scymnini
- Genus
- Nephus
Imported taxonomy record. Source availability varies; see the source references and editorial policy below.
Habitat and Range
Geographic Range
e. US (TX-FL-MA-SD) - Map - , east of the Rockies
About Primitive Winged Insects: the wider group
Order-level background for Coleoptera, the group containing Nephus intrusus. 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 Nephus intrusus (5)
Photo credits: Contributed by v belov; Additional contributions by Chuck Entz , Mike Quinn , Abigail Parker
Frequently Asked Questions About Nephus intrusus
How big is Nephus intrusus?
1.5-2.0 mm (Horn, 1895)
How do you identify Nephus intrusus?
Det. R. Gordon, 1977
Where is Nephus intrusus found?
Range: e. US (TX-FL-MA-SD) - Map - , east of the Rockies
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