ColeopteraCerambycidae – Longhorn Beetles

Blackened Milkweed Beetle

Tetraopes melanurus

This record describes Tetraopes melanurus (species). Recorded family: Cerambycidae. Recorded order: Coleoptera.

Identification and Appearance

Blackened Milkweed Beetle - Tetraopes melanurus
Contributed by Cotinis; Additional contributions by Beatriz Moisset , Mike Quinn , v belov

Distinctive heavy marks on elytra, in addition to spots. Weak callus on pronotum. Antennae all dark.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Chrysomeloidea
Family
Cerambycidae (Longhorn Beetles)
Subfamily
Lamiinae
Tribe
Tetraopini
Genus
Tetraopes (Milkweed Longhorn Beetles)

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

Habitat and Range

Geographic Range

e.US (NY‒MI to FL‒MS)

Diet and Behavior

Diet: adults and larva on Butterfly Weed, Asclepias tuberosa

Additional species information

Species notes from the sources

Etymology: Tetraopes melanurus Schönherr 1817

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Tetraopes melanurus. 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 Blackened Milkweed Beetle (5)

Blackened Milkweed Beetle - photo 1
Contributed by Cotinis; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Blackened Milkweed Beetle - photo 2
Contributed by Cotinis; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Blackened Milkweed Beetle - photo 3
Contributed by Cotinis; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Blackened Milkweed Beetle - photo 4
Contributed by Cotinis; Additional contributions by Beatriz Moisset , Mike Quinn , v belov
Blackened Milkweed Beetle - photo 5
Contributed by Cotinis; Additional contributions by Beatriz Moisset , Mike Quinn , v belov

Photo credits: Contributed by Cotinis; Additional contributions by Beatriz Moisset , Mike Quinn , v belov

Frequently Asked Questions About Blackened Milkweed Beetle

What is Blackened Milkweed Beetle?

Blackened Milkweed Beetle (Tetraopes melanurus) is a species in the family Cerambycidae, within the order Coleoptera.

How big is Blackened Milkweed Beetle?

7‒12 mm

How do you identify Blackened Milkweed Beetle?

Distinctive heavy marks on elytra, in addition to spots. Weak callus on pronotum. Antennae all dark.

Where is Blackened Milkweed Beetle found?

Range: e.US (NY‒MI to FL‒MS)

What does Blackened Milkweed Beetle eat?

The diet of the Blackened Milkweed Beetle includes adults and larva on Butterfly Weed, Asclepias tuberosa.

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

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