ColeopteraStaphylinidae – Rove Beetles

Astenus binotatus 0

Astenus binotatus

This record describes Astenus binotatus (species). Recorded family: Staphylinidae. Recorded order: Coleoptera.

Identification and Appearance

Body very slender and parallel, pale ochreo-testaceous in color, the head, a spot on each elytron somewhat variable in size but situated at the external margin behind the middle, and last two ventrals, black (emphasis added), in the last case extending anteriorly onto the fourth segment as a rule; head elongate, well developed, much wider than the elytra, the eyes moderately convex and at their own length from the base; prothorax much narrower than the head, slightly elongate, broadly rounded at the sides anteriorly and only moderately narrowed thence to the base; elytra elongate, but little narrowed posteriorly, just visibly wider and only slightly longer than the prothorax. Spmn - Spencer Entomological Museum

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Staphylinoidea
Family
Staphylinidae (Rove Beetles)
Subfamily
Paederinae
Tribe
Lathrobiini
Genus
Astenus

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

Habitat and Range

Geographic Range

e.US (ON-c.FL to IA-TX)

Additional species information

Species notes from the sources

Etymology: Astenus binotatus (Say, 1823)

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Astenus binotatus. 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.

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Frequently Asked Questions About Astenus binotatus 0

What is Astenus binotatus 0?

Astenus binotatus 0 (Astenus binotatus) is a species in the family Staphylinidae, within the order Coleoptera.

How do you identify Astenus binotatus 0?

Body very slender and parallel, pale ochreo-testaceous in color, the head, a spot on each elytron somewhat variable in size but situated at the external margin behind the middle, and last two ventrals, black (emphasis added), in the last case extending anteriorly onto the fourth segment as a rule; head elongate, well developed, much wider than the elytra, the eyes moderately convex and at their own length from the base; prothorax much narrower than the head, slightly elongate, broadly rounded at the sides anteriorly and only moderately narrowed thence to the base; elytra elongate, but little narrowed posteriorly, just visibly wider and only slightly longer than the prothorax. Spmn - Spencer Entomological Museum

Where is Astenus binotatus 0 found?

Range: e.US (ON-c.FL to IA-TX)