Chrysomela interrupta

Fabricius, 1801

alder leaf beetle

Chrysomela interrupta, the alder leaf beetle, is a leaf beetle in the Chrysomelidae found in North America. It is one of several in the Chrysomela associated with woody plants. The species is documented in entomological records and citizen science observations, though detailed biological studies appear limited in the accessible literature.

Chrysomela interrupta var. quadriguttoides by the Smithsonian. Used under a CC0 license.Chrysomela interrupta var. quadriguttoides by the Smithsonian. Used under a CC0 license.Chrysomela interrupta var. quadriguttoides by the Smithsonian. Used under a CC0 license.

Pronunciation

How to pronounce Chrysomela interrupta: //ˌkrɪsoʊˈmiːlə ˌɪntəˈrʌptə//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

The specific epithet "interrupta" likely refers to interrupted or broken markings on the , a common naming pattern in this . in Chrysomela are generally small to medium leaf beetles with oval bodies. Accurate identification to species level typically requires examination of elytral pattern, body coloration, and association with plant. It may be confused with other Chrysomela species, particularly those feeding on related host plants in the genus Alnus.

Images

Habitat

Associated with alder (Alnus spp.) based on its , though specific requirements are not well documented in the provided sources. As a leaf beetle, it likely inhabits riparian areas, wetlands, and moist woodlands where alder trees and shrubs occur.

Distribution

North America. Specific range details within this region are not provided in the available sources.

Diet

Foliage of alder (Alnus spp.), inferred from . The degree of specificity is not documented in available sources.

Host Associations

  • Alnus - herbivoreinferred from "alder leaf beetle"

Ecological Role

As a leaf-feeding beetle, it likely contributes to nutrient cycling through herbivory on alder foliage. Specific ecological impacts or interactions are not documented.

Similar Taxa

  • Other Chrysomela speciesSimilar body form and elytral patterns; identification requires careful examination of markings and plant association
  • Calligrapha speciesRelated leaf beetles in Chrysomelidae with similar dome-shaped bodies and contrasting color patterns, though Calligrapha typically show more elaborate linear or script-like markings

Tags

Sources and further reading