ColeopteraChrysomelidae – Leaf Beetles

Pachybrachis mobilis

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

Identification and Appearance

Pachybrachis mobilis - Pachybrachis mobilis
Contributed by Mike Quinn

Pale yellow with standard spots variably developed, brown to fuscous; eyes more distant in the male than the vertical width of their upper lobes; front without ocular lines; punctuation rather dense, the elytral striae more or less distinct behind and at sides, marginal interspace punctate spmns exhibit a puzzling amount of variation PARATYPE

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

s. CA to w. TX, CO - Map

Additional species information

Species notes from the sources

Etymology: Pachybrachis mobilis Fall 1915

About Primitive Winged Insects: the wider group

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

Pachybrachis mobilis - photo 1
Contributed by Mike Quinn
Pachybrachis mobilis - photo 2
Contributed by Mike Quinn
Pachybrachis mobilis - photo 3
Contributed by Mike Quinn
Pachybrachis mobilis - photo 4
Contributed by Mike Quinn
Pachybrachis mobilis - photo 5
Contributed by Mike Quinn

Photo credits: Contributed by Mike Quinn

Frequently Asked Questions About Pachybrachis mobilis

What is Pachybrachis mobilis?

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

How big is Pachybrachis mobilis?

Length 2.75 to 3.8 mm

How do you identify Pachybrachis mobilis?

Pale yellow with standard spots variably developed, brown to fuscous; eyes more distant in the male than the vertical width of their upper lobes; front without ocular lines; punctuation rather dense, the elytral striae more or less distinct behind and at sides, marginal interspace punctate spmns exhibit a puzzling amount of variation PARATYPE

Where is Pachybrachis mobilis found?

Range: s. CA to w. TX, CO - Map

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.