ColeopteraStaphylinidae – Rove Beetles

Philonthus quadricollis

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

Identification and Appearance

Philonthus quadricollis - Philonthus quadricollis
Contributed by Brad Barnd

Common species. Philonthus gavius Smetana, 1995 is very similar, but has a more southern distribution.

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

Found in wet to moist habitats, such as banks of rivers/streams and ponds, marshes, and swamps. Often comes to lights and commonly seen in flight-intercept traps. Specimens have been taken by sifting wet moss, Sphagnum mats, leaf litter, and other debris. Some have also been taken from beaver houses and muskrat nests.

Geographic Range

Transcontinental across northern North America, from Nova Scotia south to North Carolina, west to British Columbia and northern California.

About Primitive Winged Insects: the wider group

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

Philonthus quadricollis - photo 1
Contributed by Brad Barnd
Philonthus quadricollis - photo 2
Contributed by Brad Barnd
Philonthus quadricollis - photo 3
Contributed by Brad Barnd
Philonthus quadricollis - photo 4
Contributed by Brad Barnd
Philonthus quadricollis - photo 5
Contributed by Brad Barnd

Photo credits: Contributed by Brad Barnd

Frequently Asked Questions About Philonthus quadricollis

What is Philonthus quadricollis?

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

How big is Philonthus quadricollis?

4.8 to 6.7 mm

Where is Philonthus quadricollis found?
FeatureDetails
HabitatFound in wet to moist habitats, such as banks of rivers/streams and ponds, marshes, and swamps. Often comes to lights and commonly seen in flight-intercept traps. Specimens have been taken by sifting wet moss, Sphagnum mats, leaf litter, and other debris. Some have also been taken from beaver houses and muskrat nests.
RangeTranscontinental across northern North America, from Nova Scotia south to North Carolina, west to British Columbia and northern California.

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

Photo credits: Contributed by Brad Barnd. Contributors retain copyright over their individual contributions.