ColeopteraStaphylinidae – Rove Beetles

Philonthus nudus

This record describes Philonthus nudus (species). Recorded family: Staphylinidae. Recorded order: Coleoptera.

Identification and Appearance

Philonthus nudus - Philonthus nudus
Contributed by Boris Büche; Additional contributions by v belov

purely black, including elytra; the latter strongly but not densely punctured; some discal pronotal punctures in common groove, like in several Cafius . Head wider in males

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Staphylinoidea
Family
Staphylinidae (Rove Beetles)
Subfamily
Staphylininae
Tribe
Staphylinini
Genus
Philonthus

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

Habitat and Range

Habitat

Seaweed washings on shoreline

Geographic Range

transpacific, n.China to Washington state

Additional species information

Species notes from the sources

Etymology: Philonthus nudus Sharp 1874

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Philonthus nudus. 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 Philonthus nudus (5)

Philonthus nudus - photo 1
Contributed by Boris Büche; Additional contributions by v belov
Philonthus nudus - photo 2
Contributed by Boris Büche; Additional contributions by v belov
Philonthus nudus - photo 3
Contributed by Boris Büche; Additional contributions by v belov
Philonthus nudus - photo 4
Contributed by Boris Büche; Additional contributions by v belov
Philonthus nudus - photo 5
Contributed by Boris Büche; Additional contributions by v belov

Photo credits: Contributed by Boris Büche; Additional contributions by v belov

Frequently Asked Questions About Philonthus nudus

What is Philonthus nudus?

Philonthus nudus is a species in the family Staphylinidae, within the order Coleoptera.

How big is Philonthus nudus?

8‒10 mm

How do you identify Philonthus nudus?

purely black, including elytra; the latter strongly but not densely punctured; some discal pronotal punctures in common groove, like in several Cafius .

Where is Philonthus nudus found?
FeatureDetails
HabitatSeaweed washings on shoreline
Rangetranspacific, n.China to Washington state

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Boris Büche; Additional contributions by v belov. Contributors retain copyright over their individual contributions.