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A list of Michigan Corixidae (Hemiptera) with four new state records from the Great Lakes of Michigan

Corisella tarsalis , Sigara lineata , Trichocorixa borealis , and Trichocorixa kanza were recently identified from Michigan and constitute new state records. These four species were collected from two of the Great Lakes or their connecting rivers and increase the number of corixids for Michigan to 47 species. We newly report the genus Corisella for Michigan. Although most abundant in the western United States and Canada, scattered Corisella records in the Midwest (Wisconsin, Ohio and Ontario, Canada) indicated there was a good probability of its occurrence in Michigan. Finally, we provide an updated list of Michigan Corixidae.

Entomological News↗

New Midwestern state records of aquatic Hemiptera (Corixidae: Notonectidae)

Recent aquatic Hemiptera collections have yielded 15 new state records distributed among four midwestern States. These records include two species of water boatmen (Palmacorixa gillettei and Sigara mathesoni) new for Indiana, four water boatmen species (Cenocorixa utahensis, Corisella inscripta, Hesperocorixa laevigata, S. decorata), including one genus (Cenocorixa) new for Michigan, four water boatmen species (Corisella edulis, Trichocorixa macroceps, S. decoratella, S. mathesoni) and one backswimmer species (Notonecta indica) new for Ohio, and four water boatmen species (H. kennicotti, H. semilucida, S. compressoidea, S. variabilis) new for Pennsylvania.

Entomological News↗