542 research outputs found

    Estado del conocimiento de los Anthribidae (Insecta: Coleoptera: Curculionoidea) de Colombia con clave a los géneros

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    Anthribidae is a small family of beetles known as fungus weevils, for which the state of knowledge for Colombian species has never been synthesized. Anthribids are scarce in Colombian biological collections and are usually only identified at the family level. We updated the list of species of fungus weevils recorded from Colombia. There are 37 species of anthribids recorded for the country, placed into 14 genera, 10 tribes, and 2 subfamilies. Three additional genera have been observed in the country based on records from the online platform iNaturalist. Verification of these records and species-level identifications require the revision of national biological collections. We discuss the biodiversity of Colombian fungus weevils compared to neighboring countries and provide a key to identify the genera present in Colombia. The species Domoptolis championi Jordan, 1906 is recorded for Colombia for the first time.Anthribidae es una familia pequeña de coleópteros conocidos como gorgojos de los hongos, cuyo conocimiento en Colombia nunca ha sido sintetizado. En las colecciones biológicas colombianas los antríbidos son escasos y por lo general solo están identificados a nivel de familia. Actualizamos el listado de especies de gorgojos de los hongos registrados en Colombia. Existen 37 especies de antríbidos registrados para el país, agrupadas en 14 géneros, 10 tribus y 2 subfamilias. Tres géneros adicionales han sido observados en el país a partir de registros disponibles en la plataforma iNaturalist. La verificación de estos registros requiere la revisión de colecciones biológicas nacionales. Discutimos la biodiversidad de gorgojos de los hongos colombianos comparada con países vecinos y proveemos una clave para identificar los géneros presentes en Colombia. La especie Domoptolis championi Jordan, 1906 se registra para Colombia por primera vez

    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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    This work is licensed under a Creative Commons Attribution 4.0 International License.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

    The Acidocerinae (Coleoptera, Hydrophilidae): taxonomy, classification, and catalog of species

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    The cosmopolitan subfamily Acidocerinae (Coleoptera: Hydrophilidae) is one of the largest and most taxonomically challenging lineages of water scavenger beetles. Recent phylogenetic studies have substantially advanced our understanding of acidocerine relationships but also illuminated the twin challenges of poorly delineated generic concepts and a classification broadly incompatible with the phylogeny. Here, these two challenges are addressed by providing a comprehensive synthesis and taxonomic tools for the Acidocerinae, including (1) a brief history and the current state of acidocerine classification, (2) a review of acidocerine ecology and collection methods, (3) the current knowledge of larval and fossil acidocerines, (4) a morphological primer on characters of taxonomic and systematic importance within the lineage, (5) a key to the world genera of Acidocerinae, (6) diagnoses, habitus, and aedeagal images, distribution maps, and summary of knowledge for each of the 23 extant genera in the subfamily, and (7) a complete annotated taxonomic catalog including the published distributions, synonyms, and references for all described 541 acidocerine species recognized as of 1 April 2021. The following nomenclatural acts are proposed to bring the phylogeny and classification into alignment: Colossochares gen. nov. is established to accommodate two African species previously described as Helochares (s. str.); Novochares gen. nov. is newly established to accommodate 15 Neotropical species previously included in Helochares (s. str.); the remaining Helochares subgenera Helocharimorphus Kuwert syn. nov. and Hydrobaticus MacLeay syn. nov. are synonymized with Helochares Mulsant. Peltochares Régimbart sensu nov. is redefined to include eight Old World species previously included in Helochares (s. str.). A lectotype is designated for Peltochares conspicuus Régimbart, the type species of the genus. The taxonomic and morphological circumscription of Helochares sensu nov. is narrowed and redefined

    Review of the Neotropical water scavenger beetle genus Tobochares Short & García, 2007 (Coleoptera, Hydrophilidae, Acidocerinae): new lineages, new species, and new records

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    The water scavenger beetle genus Tobochares Short & García, 2007 currently contains ten species, including one known but formally undescribed taxon. Although Tobochares was revised in 2017, ongoing fieldwork as well as an expanded concept of the genus has led to the recognition of numerous additional species. Here a combination of morphological and molecular data is presented to review this newly found Tobochares diversity. Fifteen new species are described from South America, bringing the total number of known species to 25: Tobochares akoerio sp. nov. (Suriname), T. arawak sp. nov. (Guyana), T. anthonyae sp. nov. (Venezuela: Bolívar), T. atures sp. nov., (Venezuela: Amazonas), T. benettii sp. nov. (Brazil: Amazonas), T. canaima sp. nov. (Venezuela: Bolívar), T. communis sp. nov. (Brazil: Amapá and Roraima, Guyana, Suriname, Venezuela: Bolívar), T. fusus sp. nov. (Brazil: Amapá, French Guiana), T. goias sp. nov. (Brazil: Goiás), T. kappel sp. nov. (Suriname), T. kolokoe sp. nov. (Suriname), T. luteomargo sp. nov. (Venezuela: Bolívar), T. microps sp. nov. (Suriname), T. pemon sp. nov. (Venezuela: Bolívar), and T. romanoae sp. nov. (Brazil: Roraima). Both morphological and molecular analyses support four clades within the genus, which are here diagnosed and described as species groups. New distributional records are provided for T. kusad Kohlenberg & Short, 2017 and T. sipaliwini Short & Kadosoe, 2011, both of which are recorded from Brazil for the first time. Previously restricted to the Guiana Shield region of South America, the distributional range of the genus is now broadly expanded to include localities as far south as the central Brazilian state of Goiás. Consistent with the biology of the previously described species, almost all the new species described here are associated with seepage and wet rock habitats. Remarkably, one species, T. fusus sp. nov., was collected in both seepage habitats as well as in the rotting fruits of Clusia Linnaeus (Clusiaceae), making it one of the few known acidocerines with terrestrial habits outside of the genus Quadriops Hansen, 1999. High-resolution images of most species are included, as well as a key to species groups, species, and habitat photographs

    Revision of the Neotropical water scavenger beetle genus Quadriops Hansen, 1999 (Coleoptera, Hydrophilidae, Acidocerinae)

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    The genus Quadriops Hansen, 1999 is revised and redescribed. The genus is found to contain six species, including two that are here described as new: Quadriops clusia sp. n. (Brazil, Guyana, Suriname) and Q. acroreius sp. n. (Suriname, French Guiana). Two species are found to be junior subjective synonyms of Q. depressus Hansen, 1999: Q. amazonensis García, 2000, syn. n. and Q. politus Hansen, 1999, syn. n. The male of Q. similaris Hansen, 1999 is described for the first time. New records are provided for Q. dentatus Hansen, 1999, Q. reticulatus Hansen, 1999, and Q. similaris. All species are described and illustrated in detail. Most species are confirmed as having a terrestrial way of life, with several species being found in rotten fruits, sap flows, and dead wood. Furthermore, we discuss ecological trends of the species given their collecting information

    Weevils of the genus Cercopeus Schoenherr from South Carolina, USA (Coleoptera: Curculionidae: Entiminae)

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    Six new species of the weevil genus Cercopeus Schoenherr are described from South Carolina: C. alexi, C. cornelli, C. femoratus, C. paulus, C. skelleyi, and C. tibialis. Three other species also found in South Carolina are re-described: C. chrysorrhoeus (Say), C. maspavancus Sleeper, and C. strigicollis Sleeper. Keys to known males and females of all 17 species of Cercopeus are given, along with photographs of habitus, leg features, and antennae, and line illustrations of genitalia. Nearly all specimens of the new species were collected from January-March and these species are winter activ

    U.S. Federal Reserve Monetary Policy and the Fisrt Crisis of Securitization: Mexico and Latin America, 1994-1995

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    The decisions of the Federal Reserve of United States (Fed)determinig interest rates have played a critical role in capital inflows/outflows toward Mexico and Latin America. The causal relationship that exists between the Fed and emergin markets is quite close; a clear example of this is the first crisis of securitization on the global level, which originated in Mexico in 1994. The monetary policy of the Fed supported the expansion of U.S. investment banks and some institutional investors, thus creating not only an enormous bubble in Mexico and other local financial markets in Latin America through the expansion of portfolio investment, but also succesive financial crises during the 1990s when those financial capital flows reversed themseleves

    Satellite imagery and information networks for monitoring climate and vegetation in Colombia

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    Computable species descriptions and nanopublications: applying ontology-based technologies to dung beetles (Coleoptera, Scarabaeinae)

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    Taxonomy has long struggled with analysing vast amounts of phenotypic data due to computational and accessibility challenges. Ontology-based technologies provide a framework for modelling semantic phenotypes that are understandable by computers and compliant with FAIR principles. In this paper, we explore the use of Phenoscript, an emerging language designed for creating semantic phenotypes, to produce computable species descriptions. Our case study centers on the application of this approach to dung beetles (Coleoptera, Scarabaeinae)
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