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      Three additional new genera of acidocerine water scavenger beetles from the Guiana and Brazilian Shield regions of South America (Coleoptera, Hydrophilidae, Acidocerinae)

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          Abstract

          Abstract

          Recent study of the water scavenger beetle subfamily Acidocerinae in the Neotropical region has uncovered numerous undescribed species that are not able to be placed in existing genera. Here, we describe three new genera to accommodate 17 of these new species from South America: Aulonochares gen. nov. for Aulonochares lingulatus sp. nov. (French Guiana, Suriname), Aulonochares novoairensis sp. nov. (Brazil), and Aulonochares tubulus sp. nov. (Brazil, Guyana, Suriname, Venezuela); Ephydrolithus gen. nov. for Ephydrolithus hamadae sp. nov. (Brazil), Ephydrolithus minor sp. nov. (Brazil), Ephydrolithus ogmos sp. nov. (Brazil), Ephydrolithus spiculatus sp. nov. (Brazil), and Ephydrolithus teli sp. nov. (Brazil); and Primocerus gen. nov. for Primocerus cuspidis sp. nov. (Venezuela), Primocerus gigas sp. nov. (Venezuela), Primocerus neutrum sp. nov. (Guyana, Suriname, Venezuela), Primocerus ocellatus sp. nov. (Venezuela), Primocerus petilus sp. nov. (Brazil), Primocerus pijiguaense sp. nov. (Venezuela), Primocerus maipure sp. nov. (Venezuela), Primocerus semipubescens sp. nov. (Guyana), and Primocerus striatolatus sp. nov. (Suriname). The genus Ephydrolithus gen. nov. is currently known to be restricted to seepages in the mountainous regions of the Brazilian Shield. Aulonochares gen. nov. and Primocerus gen. nov. are both currently only known from the Guiana Shield, though widespread in that region where they are associated with streams and seeps. We present differential diagnoses, maps, habitat details, and illustrations of all new genera and species here described.

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          Resumen

          El estudio reciente de escarabajos acuáticos de la subfamilia Acidocerinae en la región neotropical, ha revelado numerosas especies no descritas que no pueden ser atribuidas a los géneros existentes. Aquí describimos tres géneros nuevos para acomodar 17 de estas especies nuevas de Suramérica: Aulonochares gen. nov. para Aulonochares lingulatus sp. nov. (Guyana Francesa, Surinam), Aulonochares novoairensis sp. nov. (Brasil), y Aulonochares tubulus sp. nov. (Brasil, Guyana, Surinam, Venezuela); Ephydrolithus gen. nov. para Ephydrolithus hamadae sp. nov. (Brasil), Ephydrolithus minor sp. nov. (Brasil), Ephydrolithus ogmos sp. nov. (Brasil), Ephydrolithus spiculatus sp. nov. (Brasil), y Ephydrolithus teli sp. nov. (Brasil); y Primocerus gen. nov. para Primocerus cuspidis sp. nov. (Venezuela), Primocerus gigas sp. nov. (Venezuela), Primocerus neutrum sp. nov. (Guyana, Surinam, Venezuela), Primocerus ocellatus sp. nov. (Venezuela), Primocerus petilus sp. nov. (Brazil), Primocerus pijiguaense sp. nov. (Venezuela), Primocerus maipure sp. nov. (Venezuela), Primocerus semipubescens sp. nov. (Guyana), y Primocerus striatolatus sp. nov. (Surinam). El género Ephydrolithus gen. nov. se restringe hasta ahora a hábitats higropétricos en las regiones montañosas del Escudo Brasileño. Aulonochares gen. nov. y Primocerus gen. nov. son ambos hasta ahora conocidos del Escudo Guyanés, no obstante, ampliamente distribuidos en esa región en la que están asociados con corrientes y hábitats higropétricos. Presentamos diagnosis diferenciales, mapas, detalles sobre los hábitats e ilustraciones para todos los géneros y especies que aquí se describen.

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          Most cited references15

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          Molecular phylogeny, evolution and classification of the Hydrophilidae (Coleoptera)

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            Australian Beetles Volume 1

            This three-volume series represents a comprehensive treatment of the beetles of Australia, a relatively under-studied fauna that includes many unusual and unique lineages found nowhere else on Earth. Volume 1 contains keys to all 117 beetle families found in Australia, and includes over 1100 illustrations of adults, larvae and anatomical structures. This volume is based in part on Lawrence & Britton’s out-of-print Australian Beetles, but is fully updated and expanded. The biology and morphology for all major beetle lineages is described and illustrated, along with anatomical terms which clarify the characters and terminology used in the keys; few other resources for beetle identification include such a detailed morphological background. A chapter on the fossil record is also included, and family sections provide full descriptions of adults and larvae, including the world distribution of each family. The revised identification keys (currently recognised as one of the most valuable keys worldwide) will aid quarantine agents, biologists and students in identifying members of the most species-rich order of animals.
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              Fifteen new genera of Hydrophilidae (Coleoptera), with remarks on the generic classification of the family

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                Author and article information

                Contributors
                Journal
                Zookeys
                Zookeys
                2
                urn:lsid:arphahub.com:pub:45048d35-bb1d-5ce8-9668-537e44bd4c7e
                urn:lsid:zoobank.org:pub:91BD42D4-90F1-4B45-9350-EEF175B1727A
                ZooKeys
                Pensoft Publishers
                1313-2989
                1313-2970
                2019
                13 June 2019
                : 855
                : 109-154
                Affiliations
                [1 ] Department of Ecology & Evolutionary Biology, and Division of Entomology, Biodiversity Institute, University of Kansas, Lawrence, KS 66045, USA University of Kansas Lawrence United States of America
                Author notes
                Corresponding author: Jennifer C. Girón ( jcgiron@ 123456ku.edu ; aezshort@ 123456ku.edu )

                Academic editor: M. Michat

                Author information
                https://orcid.org/0000-0002-0851-6883
                Article
                33013 urn:lsid:arphahub.com:pub:52fea497-fd4b-549f-af66-8e24dad970e7 urn:lsid:zoobank.org:pub:F5A7AE8B-3883-4CFD-859F-B2F3F9A079C0
                10.3897/zookeys.855.33013
                6586674
                31244545
                9559704d-b703-4092-ba06-b2c8b9dfbc0e
                Jennifer C. Girón, Andrew Edward Z. Short

                This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

                History
                : 10 January 2019
                : 29 April 2019
                Funding
                WWF-Guianas
                Categories
                Research Article
                Coleoptera
                Hydrophilidae
                Biodiversity & Conservation
                Cenozoic
                South America

                Animal science & Zoology
                aquatic beetles,new species,neotropical region,taxonomy,seepage habitat,animalia,coleoptera,hydrophilidae

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