ColeopteraScirtidae – Marsh Beetles

Scirtes plagiatus

This record describes Scirtes plagiatus (species). Recorded family: Scirtidae. Recorded order: Coleoptera.

Identification and Appearance

Scirtes plagiatus - Scirtes plagiatus
Contributed by v belov; Additional contributions by Mike Quinn , mpintar
FeatureDescription
Additional detailsOvate, reddish testaceous, head, thorax and an oblique lateral stripe on each elytron piceous.
HeadHead shining, finely and sparsely punctate and sparsely pubescent. First joint of antennae stout, second and third small, together as long as the fourth, fourth to tenth feebly decreasing in length, eleventh slightly longer than the tenth and rounded at apex.
ThoraxThorax very strongly transverse; sides narrowing to apex, apical angles rounded, basal angles feebly so; base arcuate; surface finely and rather sparsely punctate and sparsely pubescent. Scutellum triangular, finely and sparsely punctate.
ElytraElytra more strongly punctate than the thorax, sparsely pubescent with fine, recumbent, pale hairs; color reddish testaceous, with an oblique, piceous vitta on each side, extending to about apical fourth, leaving apex and the suture narrowly pale.
BodyBody beneath sparsely pubescent; tibiae carinate. Det. M. Pintar, 2024 Type locality: Huachuca Mountains, Arizona

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Scirtoidea
Family
Scirtidae (Marsh Beetles)
Genus
Scirtes

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

Habitat and Range

Geographic Range

AZ, w.TX

Additional species information

Species notes from the sources

Etymology: Scirtes plagiatus Schaeffer 1906

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Scirtes plagiatus. 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 Scirtes plagiatus (2)

Scirtes plagiatus - photo 1
Contributed by v belov; Additional contributions by Mike Quinn , mpintar
Scirtes plagiatus - photo 2
Contributed by v belov; Additional contributions by Mike Quinn , mpintar

Photo credits: Contributed by v belov; Additional contributions by Mike Quinn , mpintar

Frequently Asked Questions About Scirtes plagiatus

What is Scirtes plagiatus?

Scirtes plagiatus is a species in the family Scirtidae, within the order Coleoptera.

How big is Scirtes plagiatus?

3.3‒3.4 mm

How do you identify Scirtes plagiatus?
FeatureDescription
Additional detailsOvate, reddish testaceous, head, thorax and an oblique lateral stripe on each elytron piceous.
HeadHead shining, finely and sparsely punctate and sparsely pubescent. First joint of antennae stout, second and third small, together as long as the fourth, fourth to tenth feebly decreasing in length, eleventh slightly longer than the tenth and rounded at apex.
ThoraxThorax very strongly transverse; sides narrowing to apex, apical angles rounded, basal angles feebly so; base arcuate; surface finely and rather sparsely punctate and sparsely pubescent. Scutellum triangular, finely and sparsely punctate.
ElytraElytra more strongly punctate than the thorax, sparsely pubescent with fine, recumbent, pale hairs; color reddish testaceous, with an oblique, piceous vitta on each side, extending to about apical fourth, leaving apex and the suture narrowly pale.
BodyBody beneath sparsely pubescent; tibiae carinate. Det. M. Pintar, 2024
Where is Scirtes plagiatus found?

Range: AZ, w.TX

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

Photo credits: Contributed by v belov; Additional contributions by Mike Quinn , mpintar. Contributors retain copyright over their individual contributions.