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      Three new genera of acidocerine water scavenger beetles from tropical South America (Coleoptera, Hydrophilidae, Acidocerinae)

      research-article
      1 , 1
      ZooKeys
      Pensoft Publishers
      aquatic beetles, new species, taxonomy, seepage habitat

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          Abstract

          Abstract

          Recent collecting efforts in the Neotropics have led to the discovery of numerous new species and lineages of aquatic beetles. Here, three new genera are described to accommodate fifteen new species of water scavenger beetles of the subfamily Acidocerinae from northern South America: Crucisternum gen. n. for C. escalera sp. n. (Venezuela), C. ouboteri sp. n. (Guyana, French Guiana, Suriname, Venezuela), C. queneyi sp. n. (French Guiana), C. sinuatus sp. n. (Brazil), C. toboganensis sp. n. (Venezuela), C. vanessae sp. n. (Suriname), and C. xingu sp. n. (Brazil); Katasophistes gen. n. for K. charynae sp. n. (Peru), K. cuzco sp. n. (Peru), K. merida sp. n. (Venezuela) and K. superficialis sp. n. (Ecuador); and Nanosaphes gen. n. for N. castaneus sp. n. (Brazil), N. hesperus sp. n. (Suriname), N. punctatus sp. n. (Guyana), and N. tricolor sp. n. (Guyana, Suriname). It was also found that the monotypic Neotropical endemic genus Dieroxenus Spangler, 1979, syn. n. is congeneric with Chasmogenus Sharp, 1882 resulting in the single new combination Chasmogenus cremnobates (Spangler, 1979), comb. n.. Katasophistes merida sp. n. is known exclusively from seepage habitats, while the remaining taxa described herein are primarily associated with the margins of densely forested streams. Diagnoses, illustrations, distribution maps, and habitat summaries are provided for all new genera and species. A key to the genera of Acidocerinae of the New World is provided.

          Translated abstract

          Resumen

          Recientes esfuerzos de colecta en el neotrópico han llevado al descubrimiento de numerosas especies y linajes nuevos de escarabajos acuáticos. Aquí se describen tres géneros nuevos, para acomodar quince especies nuevas de escarabajos acuáticos de la subfamilia Acidocerinae , del norte de Suramérica: Crucisternum gen. n. para C. escalera sp. n. (Venezuela), C. ouboteri sp. n. (Guyana, Guyana Francesa, Surinam, Venezuela), C. queneyi sp. n. (Guyana Francesa), C. sinuatus sp. n. (Brasil), C. toboganensis sp. n. (Venezuela), C. vanessae sp. n. (Surinam), y C. xingu sp. n. (Brasil); Katasophistes gen. n. para K. charynae sp. n. (Perú), K. cuzco sp. n. (Perú), K. merida sp. n. (Venezuela) y K. superficialis sp. n. (Ecuador); y Nanosaphes gen. n. para N. castaneus sp. n. (Brazil), N. hesperus sp. n. (Surinam), N. punctatus sp. n. (Guyana), y N. tricolor sp. n. (Guyana, Surinam). También se encontró que el género Dieroxenus Spangler, 1979, syn. n., el cual es monotípico, neotropical y endémico, es congenérico con Chasmogenus Sharp, 1882, lo que resulta en la nueva combinación Chasmogenus cremnobates (Spangler, 1979), comb. n.. Katasophistes merida sp. n. se conoce exclusivamente de hábitats higropétricos, mientras que los taxa restantes que se describen aquí, están primordialmente asociados con los márgenes de corrientes densamente forestadas. Diagnosis, ilustraciones, mapas de distribución y un resumen de los hábitats, son provistos para todos los géneros y especies nuevas. Se provee además una clave para la identificación de géneros de Acidocerinae del nuevo mundo.

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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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              A new aquatic beetle family, Meruidae, from Venezuela (Coleoptera: Adephaga)

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                Author and article information

                Journal
                Zookeys
                Zookeys
                ZooKeys
                ZooKeys
                Pensoft Publishers
                1313-2989
                1313-2970
                2018
                19 June 2018
                : 768
                : 113-158
                Affiliations
                [1 ] Department of Ecology & Evolutionary Biology, and Division of Entomology, Biodiversity Institute, University of Kansas, Lawrence, KS 66045, USA
                Author notes
                Corresponding author: Jennifer C. Girón ( jcgiron@ 123456ku.edu ; aezshort@ 123456ku.edu )

                Academic editor: M. Michat

                Article
                10.3897/zookeys.768.24423
                6019434
                e1554bd4-f5a8-4cab-8e66-0b4fb4e00881
                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
                : 12 February 2018
                : 2 May 2018
                Categories
                Research Article
                Animalia
                Arthropoda
                Coleoptera
                Hexapoda
                Hydrophilidae
                Hydrophiloidea
                Insecta
                Invertebrata
                Polyphaga
                Faunistics & Distribution
                Identification key
                Nomenclature
                Systematics
                Taxonomy
                Americas
                Andes
                Brazil
                Ecuador
                French Guyana/Guyane
                Guyana
                Peru
                South America
                Surinam
                Venezuela

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

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