ColeopteraCantharidae – Soldier Beetles

Rhagonycha lineola

This record describes Rhagonycha lineola (species). Recorded family: Cantharidae. Recorded order: Coleoptera.

Identification and Appearance

Rhagonycha lineola - Rhagonycha lineola
Contributed by Ken Wolgemuth; Additional contributions by cotinis , Mike Quinn , v belov

Rhagonycha lineola (Rhagonycha lineola) is a species in the family Cantharidae, commonly known as soldier beetles, belonging to the order Coleoptera (Beetles). It is classified within the subfamily Cantharinae, tribe Cantharini, suborder Polyphaga, superfamily Elateroidea. This species belongs to the genus Rhagonycha. As a member of class Insecta, phylum Arthropoda, it is part of the kingdom Animalia. Size: 4-6.5 mm ; 5.5-7.0 mm ; perhaps to 8 mm ( living specimen ). Active during March-June (BG data); May-July in northern part of range.

Identification notes

Det. Georges Pelletier, 2013

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Elateroidea
Family
Cantharidae (Soldier Beetles)
Subfamily
Cantharinae
Tribe
Cantharini
Genus
Rhagonycha

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

Habitat and Range

Geographic Range

e US, Ont. (TX-FL-NH-IL) - Map ( 3 ) ( 4 ) ; mostly se US

Seasonal Activity

March-June (BG data); May-July in northern part of range ( 3 )

Diet and Behavior

Life History

82 specimens collected Mar-Apr., mostly on oaks, during two yrs of c. TX arboreal surveys ( 5 )

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Rhagonycha lineola. 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 Rhagonycha lineola (2)

Rhagonycha lineola - photo 1
Contributed by Ken Wolgemuth; Additional contributions by cotinis , Mike Quinn , v belov
Rhagonycha lineola - photo 2
Contributed by Ken Wolgemuth; Additional contributions by cotinis , Mike Quinn , v belov

Photo credits: Contributed by Ken Wolgemuth; Additional contributions by cotinis , Mike Quinn , v belov

Frequently Asked Questions About Rhagonycha lineola

What is Rhagonycha lineola?

Rhagonycha lineola is a species in the family Cantharidae, within the order Coleoptera.

How big is Rhagonycha lineola?

4-6.5 mm ; 5.5-7.0 mm ; perhaps to 8 mm ( living specimen )

How do you identify Rhagonycha lineola?

Det. Georges Pelletier, 2013

Where is Rhagonycha lineola found?

Range: e US, Ont. (TX-FL-NH-IL) - Map ( 3 ) ( 4 ) ; mostly se US

When is Rhagonycha lineola active?

Rhagonycha lineola: seasonal activity - March-June (BG data); May-July in northern part of range ( 3 ).

What is the life cycle of a Rhagonycha lineola?

82 specimens collected Mar-Apr., mostly on oaks, during two yrs of c. TX arboreal surveys ( 5 )

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

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