ColeopteraChrysomelidae – Leaf Beetles

Triarius lividus

This record describes Triarius lividus (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.

Identification and Appearance

Triarius lividus - Triarius lividus
Contributed by Mike Quinn

quite variable in appearance. Future study may well prove that multiple true species are involved. ( 3 ) Type Locality: Arizona

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Chrysomeloidea
Family
Chrysomelidae (Leaf Beetles)
Subfamily
Galerucinae
Tribe
Luperini
Genus
Triarius

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

Habitat and Range

Geographic Range

so. AZ to w. TX (to Crockett and Val Verde Counties) / Mex. - Map ( 4 ) ( 3 ) ( 5 )

Seasonal Activity

April to July ( 3 )

Diet and Behavior

Life History

reported from Dasylirion and Nolina (Asparagaceae); and Xerophyllum (Melanthiaceae) ( 6 ) ( 3 )

Additional species information

Species notes from the sources

Etymology: livid (L). 'ashen'

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Triarius lividus. 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 Triarius lividus (3)

Triarius lividus - photo 1
Contributed by Mike Quinn
Triarius lividus - photo 2
Contributed by Mike Quinn
Triarius lividus - photo 3
Contributed by Mike Quinn

Photo credits: Contributed by Mike Quinn

Frequently Asked Questions About Triarius lividus

What is Triarius lividus?

Triarius lividus is a species in the family Chrysomelidae, within the order Coleoptera.

How do you identify Triarius lividus?

quite variable in appearance. Future study may well prove that multiple true species are involved. ( 3 )

Where is Triarius lividus found?

Range: so. AZ to w. TX (to Crockett and Val Verde Counties) / Mex. - Map ( 4 ) ( 3 ) ( 5 )

When is Triarius lividus active?

Triarius lividus: seasonal activity - April to July ( 3 ).

What is the life cycle of a Triarius lividus?

reported from Dasylirion and Nolina (Asparagaceae); and Xerophyllum (Melanthiaceae) ( 6 ) ( 3 )

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

Photo credits: Contributed by Mike Quinn. Contributors retain copyright over their individual contributions.