Leptinotarsa texana

Schaeffer, 1906

Texas potato beetle

Leptinotarsa texana, commonly known as the Texas potato , is a leaf beetle in the Chrysomelidae. It has been investigated as a potential agent for the weed silverleaf nightshade (Solanum elaeagnifolium). The has been documented as a for the Edovum puttleri, which has been studied for biological control of the related . Its host range includes multiple Solanum species, with field studies showing feeding on silverleaf nightshade and eggplant but not on potato.

Leptinotarsa texana lateral by Willow Warren, Department of Agriculture Western Australia. Used under a CC BY 3.0 au license.Leptinotarsa texana dorsal by Willow Warren, Department of Agriculture Western Australia. Used under a CC BY 3.0 au license.Leptinotarsa texana ventral by Willow Warren, Department of Agriculture Western Australia. Used under a CC BY 3.0 au license.

Pronunciation

How to pronounce Leptinotarsa texana: //ˌlɛptɪnoʊˈtɑːrsə tɛkˈseɪnə//

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

Identification

Distinguished from the closely related () by its native range and associations. The two are similar in general body plan and coloration, both showing orange and black patterning typical of the . Specific diagnostic characters for field identification are not documented in the available sources.

Images

Habitat

Associated with Solanaceae plants, particularly silverleaf nightshade in field studies. details specific to this beyond host plant associations are not documented.

Distribution

Recorded from Africa, Central America, and North America according to distribution data. Native to the southern United States and Mexico based on literature focusing on its origin for potential export as a biocontrol agent.

Diet

Feeds on Solanaceae, with documented feeding on silverleaf nightshade (Solanum elaeagnifolium) and eggplant (Solanum melongena) in field trials. No feeding damage observed on potato (Solanum tuberosum) in field studies, though laboratory no-choice conditions may differ.

Host Associations

  • Solanum elaeagnifolium - food plantprimary in studies
  • Solanum melongena - food plantcauses similar leaf damage to silverleaf nightshade in field trials
  • Edovum puttleri - eulophid that parasitizes

Ecological Role

Investigated as a potential agent for silverleaf nightshade. Serves as for , supporting parasitoid that may also attack related pest .

Human Relevance

Studied for potential use in of silverleaf nightshade, a serious agricultural weed worldwide. Considered less suitable than alternative agents due to broader range including eggplant, posing biosecurity risks for release outside native range.

Similar Taxa

  • Leptinotarsa decemlineatacongeneric with similar appearance; distinguished by range and geographic distribution, with L. decemlineata being a major potato pest while L. texana does not feed on potato in field conditions
  • Leptinotarsa defectacongeneric also evaluated for potential; both species tested on Solanum species in Florida plant evaluations

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Sources and further reading