Type specimens of New World Oedionychini Chapuis, 1875, deposited in the collections of the Museum für Naturkunde Berlin (MFNB) are examined and illustrated. Types assigned by Ludwig Wilhelm Schaufuss, Johann Karl Wilhelm Illiger, Julius Weise, Wilhelm Ferdinand Erichson, and Edgar von Harold were discovered. Lectotypes are designated for the following species: Asphaera corusca Harold, 1877, Asphaera deleta Harold, 1877, Asphaera t-album Harold, 1876, Asphaera schaufussi Harold, 1876, Haltica aemula Illiger, 1807, Haltica amicta Illiger, 1807, Haltica annularis Illiger, 1807, Haltica biloba Illiger, 1807, Haltica civilis Illiger, 1807, Haltica dipus Illiger, 1807, Haltica episcopalis Illiger, 1807, Haltica graecizans Illiger, 1807, Haltica hellwigii Illiger, 1807, Haltica honesta Illiger, 1807, Haltica humilis Illiger, 1807, Haltica infulata Illiger, 1807, Haltica interrupta Illiger, 1807, Haltica jaculus Illiger, 1807, Haltica macropus Illiger, 1807, Haltica ornata Illiger, 1807, Haltica paupera Illiger, 1807, Haltica personata Illiger, 1807, Haltica propugnaculum Illiger, 1807, Haltica rufina Illiger, 1807, Haltica sexmaculata Illiger, 1807, Haltica siebersii Illiger, 1807, Haltica vians Illiger, 1807, Haltica zebrata Illiger, 1807, Homophoeta clerica Erichson, 1848, Homophoeta curialis Erichson, 1847, Homophoeta inaequalis Erichson, 1847, Oedionychis alacris Erichson, 1847, Oedionychis basalis Schaufuss, 1874, Oedionychis coccinelloides Harold, 1877, Oedionychis cribriceps Schaufuss, 1874, Oedionychis dissepta Erichson, 1847, Oedionychis fairmairei Harold, 1877, Oedionychis florigera Harold, 1877, Oedionychis generosa Harold, 1877, Oedionychis inconstans Schaufuss, 1874, Oedionychis kiesenwetteri Harold, 1877, Oedionychis kraatzi Harold, 1880, Oedionychis livida Harold, 1881, Oedionychis longicollis Schaufuss, 1874, Oedionychis marginicollis Schaufuss, 1874, Oedionychis mendax Harold, 1881, Oedionychis opulenta Erichson, 1847, Oedionychis perforata Schaufuss, 1874, Oedionychis perspicillata Schaufuss, 1874, Oedionychis plagiata Erichson, 1847, Oedionychis praecincta Erichson, 1847, Oedionychis promta Erichson, 1847, Oedionychis punctulata Schaufuss, 1874, Oedionychis quadripunctata Schaufuss, 1874, Oedionychis sagulata Erichson, 1847, Oedionychis selloi Harold, 1881, Oedionychis taeniolata Harold, 1881, Oedionychis triplagiata Schaufuss, 1874, and Oedionychis vittata Harold, 1876. The following new combinations are proposed: Aspicela inaequalis (Erichson, 1847) comb. nov., Wanderbiltiana punctulata (Schaufuss, 1874) comb. nov., Capraita taeniolata (Harold, 1881) comb. nov., Asphaera triplagiata (Schaufuss, 1874) comb. nov., and Phenrica amicta (Illiger, 1807) comb. nov., effectively removing the latter species from Oedionychini. The following original combination is restored: Asphaera corusca Harold, 1877. The following species are restored: Alagoasa alacris (Erichson, 1847) and Omophoita longicollis (Schaufuss, 1874). The following synonyms are proposed: Haltica dipus Illiger, 1807 as a synonym of Alagoasa decemguttata (Fabricius, 1801) and Oedionychis quadripunctata Schaufuss, 1874 as a synonym of Walterianella venustula (Schaufuss, 1874). We figure and discuss a potential syntype of Oedionychis ophthalmica Harold, 1877. Lastly, we correct two placements in our previous publication and propose the following new combinations: Heikertingeria obsoleta (Fabricius, 1801) comb. nov., and Asbecesta avicenniae (Fabricius, 1792) comb. nov. In addition, a galerucine Asbecesta cyanipennis (Harold, 1877) (Galerucitae, Luperini) is synonymized with Asbecesta avicenniae (Fabricius, 1792). The present study ensures the taxonomic stability of a considerable proportion of names within New World Oedionychini. Moreover, many of the species have not been illustrated before, providing a resource for identification.

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