ColeopteraScirtidae – Marsh Beetles

Contacyphon punctatus

This record describes Contacyphon punctatus (species). Recorded family: Scirtidae. Recorded order: Coleoptera.

Identification and Appearance

Contacyphon punctatus - Contacyphon punctatus
Contributed by Brad Barnd; Additional contributions by Mike Quinn

Male genitalia are diagnostic. Fairly strongly setose and pronotum granulose Det. Brad Barnd, 2023 Type localities: South Carolina and New York Previously considered a synonym of Cyphon variabilis , but genitalia differences led Tetrault ( 3 ) to resurrect this as a valid species. His change was followed by Epler ( 4 ) .

Classification

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

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

Habitat and Range

Geographic Range

mostly n.NA (YT-BC to QC-NY), but also records from WV, NC, TX , plus one lit. spmn record from n.FL that Epler consideres questionable

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Contacyphon punctatus. 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 Contacyphon punctatus (4)

Contacyphon punctatus - photo 1
Contributed by Brad Barnd; Additional contributions by Mike Quinn
Contacyphon punctatus - photo 2
Contributed by Brad Barnd; Additional contributions by Mike Quinn
Contacyphon punctatus - photo 3
Contributed by Brad Barnd; Additional contributions by Mike Quinn
Contacyphon punctatus - photo 4
Contributed by Brad Barnd; Additional contributions by Mike Quinn

Photo credits: Contributed by Brad Barnd; Additional contributions by Mike Quinn

Frequently Asked Questions About Contacyphon punctatus

What is Contacyphon punctatus?

Contacyphon punctatus is a species in the family Scirtidae, within the order Coleoptera.

How big is Contacyphon punctatus?

TBD. 2 to 3 mm likely

How do you identify Contacyphon punctatus?

Male genitalia are diagnostic. Fairly strongly setose and pronotum granulose Det. Brad Barnd, 2023

Where is Contacyphon punctatus found?

Range: mostly n.NA (YT-BC to QC-NY), but also records from WV, NC, TX , plus one lit. spmn record from n.FL that Epler consideres questionable

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

Photo credits: Contributed by Brad Barnd; Additional contributions by Mike Quinn. Contributors retain copyright over their individual contributions.