Revision of the Neotropical water scavenger beetle genus Girón & Short (Coleoptera, Hydrophilidae, Acidocerinae).

The water scavenger beetle genus Girón & Short, 2021 is revised using a combination of adult morphological and DNA sequence data. Thirty-eight new species are described: (Bolivia), (Brazil, Ecuador, Peru, Suriname), (Brazil), (Brazil), (Brazil, French Guiana, Peru), (Venezuela), (Ecuador, Venezuela), (Peru), (Brazil, French Guiana, Guyana, Suriname, Venezuela), (Brazil, Peru, Venezuela), (Brazil), (Brazil), (Venezuela), (Brazil), (Brazil), (Ecuador, Peru), (Brazil), (Peru, Suriname, Venezuela), (Bolivia), (Brazil), (Brazil, French Guiana, Suriname), (Ecuador), (Brazil), (Venezuela), (Venezuela), (Venezuela), (Brazil, French Guiana, Guyana, Peru, Suriname), (Brazil, Guyana, Suriname), (Peru), (Peru), (Guyana, Venezuela), (Bolivia, Brazil, Paraguay), (Brazil), (Peru), (Bolivia, Peru), (Brazil), and (Venezuela), (Peru). One new synonym is proposed: (Short, 2005) was determined to be a junior subjective synonym of (Fernández, 1982).

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

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.

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

The water scavenger beetle genus Short & García, 2007 currently contains ten species, including one known but formally undescribed taxon. Although 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 diversity.

Variability and distribution of the golden-headed weevil (Say) (Curculionidae: Entiminae: Eustylini).

Background: The golden-headed weevil is a native and fairly widespread species across the southern U.S.A.