ColeopteraChrysomelidae – Leaf Beetles2 data sources

Small Striped Flea Beetle

Phyllotreta undulata

This record describes Phyllotreta undulata (species). Recorded family: Chrysomelidae. Recorded order: Coleoptera.

Identification and Appearance

Small Striped Flea Beetle - Phyllotreta undulata

A tiny beetle, which measures little more than about 1.5 mm. Its black elytra are marked with broad straw yellow longitudinal stripes. It is similar to Phyllotreta nemorum and detailed examination is necessary to be certain of the species. Their preferred host plants are Brassicas. All year round, but mainly in the summer months. Widespread and fairly frequent in Britain. No additional images available for this species.

Classification

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

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

Habitat and Range

Habitat

Their preferred host plants are Brassicas.

Seasonal Activity

All year round, but mainly in the summer months.

Additional species information

Recorded status

Widespread and fairly frequent in Britain.

About Primitive Winged Insects: the wider group

Order-level background for Coleoptera, the group containing Phyllotreta undulata. 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.

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Photos of Small Striped Flea Beetle (4)

Small Striped Flea Beetle - photo 1
Small Striped Flea Beetle - photo 2
Small Striped Flea Beetle - photo 3
Small Striped Flea Beetle - photo 4

Frequently Asked Questions About Small Striped Flea Beetle

What is Small Striped Flea Beetle?

Small Striped Flea Beetle (Phyllotreta undulata) is a species in the family Chrysomelidae, within the order Coleoptera.

Where is Small Striped Flea Beetle found?

Habitat: Their preferred host plants are Brassicas.

When is Small Striped Flea Beetle active?

Small Striped Flea Beetle: seasonal activity - All year round, but mainly in the summer months..