ColeopteraChrysomelidae – Leaf Beetles

Pachybrachis analis

This record describes Pachybrachis analis (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.

Identification and Appearance

Pachybrachis analis - Pachybrachis analis
Contributed by Dennis Haines; Additional contributions by Mike Quinn , Boris Bueche , v belov

Male. Moderately robust, from almost all black with lateral margins yellow to primarily yellow with black markings on pronotum and elytra, sparsely covered in white pubescence; prothorax with narrow, entire or subentire, smooth median line Head: Not distinctly wider than thoracic apex, Pronotum: From almost black with lateral margins yellow to primarily yellow with complete or partial, brown to black, M-shaped markings, narrow partial or entire smooth median line, sparsely covered with white pubescence Elytra: Black with lateral margins yellow to primarily yellow with black markings, sparsely covered with white pubescence.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Coleoptera (Beetles)
Suborder
Polyphaga
Superfamily
Chrysomeloidea
Family
Chrysomelidae (Leaf Beetles)
Subfamily
Cryptocephalinae
Tribe
Cryptocephalini
Genus
Pachybrachis (Scriptured Leaf Beetles)

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

Habitat and Range

Geographic Range

c.CA to UT‒w.TX / Mex. - Map , most records c.CA to AZ

Diet and Behavior

Life History

asso. w/ var. Asteraceae, Fabaceae, and Rosaceae ( 3 )

Additional species information

Species notes from the sources

Etymology: Pachybrachis analis J.L. LeConte 1861

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Pachybrachis analis. 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 Pachybrachis analis (5)

Pachybrachis analis - photo 1
Contributed by Dennis Haines; Additional contributions by Mike Quinn , Boris Bueche , v belov
Pachybrachis analis - photo 2
Contributed by Dennis Haines; Additional contributions by Mike Quinn , Boris Bueche , v belov
Pachybrachis analis - photo 3
Contributed by Dennis Haines; Additional contributions by Mike Quinn , Boris Bueche , v belov
Pachybrachis analis - photo 4
Contributed by Dennis Haines; Additional contributions by Mike Quinn , Boris Bueche , v belov
Pachybrachis analis - photo 5
Contributed by Dennis Haines; Additional contributions by Mike Quinn , Boris Bueche , v belov

Photo credits: Contributed by Dennis Haines; Additional contributions by Mike Quinn , Boris Bueche , v belov

Frequently Asked Questions About Pachybrachis analis

What is Pachybrachis analis?

Pachybrachis analis is a species in the family Chrysomelidae, within the order Coleoptera.

How do you identify Pachybrachis analis?

Male. Moderately robust, from almost all black with lateral margins yellow to primarily yellow with black markings on pronotum and elytra, sparsely covered in white pubescence; prothorax with narrow, entire or subentire, smooth median line Head: Not distinctly wider than thoracic apex, Pronotum: From almost black with lateral margins yellow to primarily yellow with complete or partial, brown to black, M-shaped markings, narrow partial or entire smooth median line, sparsely covered with white pubescence Elytra: Black with lateral margins yellow to primarily yellow with black markings, sparsely covered with white pubescence.

Where is Pachybrachis analis found?

Range: c.CA to UT‒w.TX / Mex. - Map , most records c.CA to AZ

What is the life cycle of a Pachybrachis analis?

asso. w/ var. Asteraceae, Fabaceae, and Rosaceae ( 3 )

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

Photo credits: Contributed by Dennis Haines; Additional contributions by Mike Quinn , Boris Bueche , v belov. Contributors retain copyright over their individual contributions.