ColeopteraStaphylinidae – Rove Beetles

Ischnosoma virginicum

This record describes Ischnosoma virginicum (species). Recorded family: Staphylinidae. Recorded order: Coleoptera.

Identification and Appearance

Ischnosoma virginicum - Ischnosoma virginicum
Contributed by tom murray; Additional contributions by Mike Quinn , pierrickb

Close to I. flavicolle but lacking an apical palisade fringe of setae on the margin of the seventh tergite of the abdomen. Males of I. virgnicum may be readily distinguished from those of all other species of the Pictum group by the distinctive shape of the sclerites of the internal sac of the aedeagus and the truncate or slightly emarginate apical margin of the seventh sternite with only a sparse row of apical setae.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Staphylinoidea
Family
Staphylinidae (Rove Beetles)
Subfamily
Mycetoporinae
Genus
Ischnosoma

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

Habitat and Range

Habitat

Soil and leaf litter in forests.

Geographic Range

Widely distributed in eastern NA ranging from ON to NS (CANADA) south to FL, MS, TX (USA)

Seasonal Activity

IV-X

Additional species information

Species notes from the sources

Etymology: Ischnosoma virginicum (Bernhauer, 1917)

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Ischnosoma virginicum. 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 Ischnosoma virginicum (3)

Ischnosoma virginicum - photo 1
Contributed by tom murray; Additional contributions by Mike Quinn , pierrickb
Ischnosoma virginicum - photo 2
Contributed by tom murray; Additional contributions by Mike Quinn , pierrickb
Ischnosoma virginicum - photo 3
Contributed by tom murray; Additional contributions by Mike Quinn , pierrickb

Photo credits: Contributed by tom murray; Additional contributions by Mike Quinn , pierrickb

Frequently Asked Questions About Ischnosoma virginicum

What is Ischnosoma virginicum?

Ischnosoma virginicum is a species in the family Staphylinidae, within the order Coleoptera.

How big is Ischnosoma virginicum?

3.5-4.2 mm

How do you identify Ischnosoma virginicum?

Close to I. flavicolle but lacking an apical palisade fringe of setae on the margin of the seventh tergite of the abdomen. Males of I. virgnicum may be readily distinguished from those of all other species of the Pictum group by the distinctive shape of the sclerites of the internal sac of the aedeagus and the truncate or slightly emarginate apical margin of the seventh sternite with only a sparse row of apical setae.

Where is Ischnosoma virginicum found?
FeatureDetails
HabitatSoil and leaf litter in forests.
RangeWidely distributed in eastern NA ranging from ON to NS (CANADA) south to FL, MS, TX (USA)
When is Ischnosoma virginicum active?

Ischnosoma virginicum: seasonal activity - IV-X.

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

Photo credits: Contributed by tom murray; Additional contributions by Mike Quinn , pierrickb. Contributors retain copyright over their individual contributions.