Taphioporus gen. n. with the type species T. balticus sp. n. and the new species, Colaspoides eocenicus sp. n., from Baltic amber are described. The distinctness of the new genus makes the former definitions of the tribes Euryopini Lefèvre, 1885 and Typophorini Baly, 1865 problematic because the presence or absence of the preapical emargination on the meso- and metatibiae is the only distinguishing character.
Abstract. Three new monotypical genera of leaf beetles are described: Aoriopsis eocenicus n. gen, n. sp. and Acolaspoides longipes n. gen., n. sp. from the subfamily Eumolpinae, and also Crepidocnema yantarica n. gen., n. sp. from the subfamily Alticinae. Short reviews of known fossil records of the mentioned subfamilies are given and position of the new genera discussed.Résumé. Nouveaux genres et espèces de Chrysomelidae (Coleoptera : Polyphaga) de l'ambre de l'Eocène inférieur de France. Trois nouveaux genres monotypiques de Chrysomelidae sont décrits : les Eumolpinae Aoriopsis eocenicus n. gen, n. sp. et Acolaspoides longipes n. gen., n. sp. et l'Alticinae Crepidocnema yantarica n. gen., n. sp. Une revue rapide des fossiles connus attribués à ces sous-familles ainsi qu'une discussion sur la position de ces genres nouveaux sont proposés.
Two new species, Coscinoptera victoriana L. Medvedev sp. nov. and C. tamaulipasi L. Medvedev sp. nov., both from the state of Tamaulipas, Mexico, are described. Additional records for 17 other taxa (species and subspecies) of Clytrini occurring in Mexico are provided. Taxonomical status of some taxa is discussed. Key to the Mexican species of the genus Coscinoptera Lacordaire, 1848 is given. Anomoea flavokansiensis Moldenke, 1970 and Babia quadriguttata quadriguttata (Olivier, 1791) are recorded from Mexico for the first time.
New fossil taxa of Chrysomelidae are described: from Baltic amber, Succinispa stainesi Nadein gen. et. sp. nov. (Cassidinae: Oposispini); from Danish (Scandinavian) amber, Psyllototus viking Nadein sp. nov. (Galerucinae: Alticini), Calomicroides danicus Nadein gen. et sp. nov. (Galerucinae: Galerucini: Luperina), Paleomolpus hirtus Nadein gen. et sp. nov. (Eumolpinae: Eumolpini); from Rovno amber (Ukraine, Klesov), Archealtica convexa Nadein gen. et sp. nov. (Galerucinae: Alticini), Taphioporus rovnoi Moseyko and Perkovsky sp. nov. (Eumolpinae: Euryopini). Leaf beetles in succinites are represented by four species of extant ‘Holarctic' (temperate) genera in contrast to one species of a Recent ‘tropical' genus. Faunal composition of leaf beetles of late Eocene succinites supports the opinion of Archibald and Farrell () that arthropods with different climatic preferences preserved in Baltic amber were able to co‐exist under an extinct equable climate with temperate summers and mild winters.
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