Keys to separate subgenera and species group in Anthonomus Germar (Coleoptera: Curculionidae, Anthonomini) of the New World

• DOI: https://doi.org/10.22533/at.ed.813532508053

• Palavras-chave: weevils, distribution, morphology, taxonomy

• Keywords: weevils, distribution, morphology, taxonomy

• Abstract: Anthonomus Germar is the most polymorphic and difficult genus to identify at the species level within the subfamily Curculioninae; more than 500 species are known worldwide, with more than 90% found in the American continent. These are grouped into 10 subgenera; six of which are distributed in the Nearctic and Neotropical regions: Anthomorphus Weise, Anthonomochaeta Dietz, Anthonomocyllus Dietz, Anthonomorphus Dietz, Cnemocyllus Dietz and Anthonomus Germar. This last subgenus with more than 400 species and them are grouped into 53 groups. On the other hand, there are more than 60 American species that are not found within any group, and more than 50 species with a Palearctic or Afrotropical distribution; same that were not considered in this work. The botanical families with records of Anthonomus are Asteraceae, Betulaceae, Combretaceae, Cornaceae, Cupressaceae, Euphorbiaceae, Fabaceae, Fagaceae, Flacourtiaceae, Gleicheniaceae, Malpigiaceae, Malvaceae, Melastomataceae, Myricaeceae, Myrtaceae, Myrsinaceae, Pinaceae, Rhizopharaceae, Rosaceae, Rubiaceae, Rutaceae, Solanaceae and Tiliaceae. However, for most species their host plant is unknown. The objective of the current work was to facilitate the identification of Anthonomus species, taxonomic key and digital illustrations are provided, as well as a summary of each subgenus and species group.