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The Great Lakes Entomologist

2018

Colorado potato beetle

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Leptinotarsa Decemlineata (Coleoptera: Chrysomelidae) Observed Feeding On Chamaesaracha Sp. In Eastern Colorado., Michael S. Crossley, Benjamin Pélissié, Zachary Cohen, Sean D. Schoville Feb 2018

Leptinotarsa Decemlineata (Coleoptera: Chrysomelidae) Observed Feeding On Chamaesaracha Sp. In Eastern Colorado., Michael S. Crossley, Benjamin Pélissié, Zachary Cohen, Sean D. Schoville

The Great Lakes Entomologist

Egg, larval, and adult life stages of Colorado potato beetle, Leptinotarsa decemlineata (Say), were observed feeding on or attached to a previously undocumented host plant belonging to the genus Chamaesaracha in eastern Colorado on July 2017. At one site, L. decemlineata were more abundant on Chamaesaracha sp. than the accepted ancestral host plant, Solanum rostratum (Dunal). While future studies should confirm the ancestral status of the observed L. decemlineata and suitability of Chamaesaracha sp. for completion of development, our observations suggest a need for further characterization of the ancestral host range of L. decemlineata.