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Verónica Manzo - One of the best experts on this subject based on the ideXlab platform.

  • Description of the putative mature larva of the Neotropical genus Stenhelmoides Grouvelle (Coleoptera: Elmidae).
    Scientific reports, 2020
    Co-Authors: Marcela González-córdoba, Verónica Manzo, Maria Del Carmen Zuniga, Nicolás Rafael Martínez-román, Miguel Archangelsky
    Abstract:

    Stenhelmoides Grouvelle is a Neotropical genus of Elmidae and although it exhibits a wide distribution, until now no larvae had been associated with adults of this genus. Larvae, very likely belonging to this genus, were associated based on co-occurrence with adults. Eleven larvae and nine adults were examined from ten localities at altitudes between 30 and 682 m a.s.l. in the Andean, Caribbean and Pacific regions in Colombia. Mature larvae of the Stenhelmoides rufulus (Hinton) are described and illustrated for the first time. A larval diagnosis for the genus is presented; body shape, distribution and form of setae and number of pleural sclerites are diagnostic characters for larvae of this genus. Comparative notes with similar larvae of other Elmidae genera are presented. The existing generic keys are updated to include larvae of Stenhelmoides. Comments on distribution and habitat of Stenhelmoides larvae are also provided. This work contributes to enhance the knowledge of Neotropical larvae, which have been described for only approximately 56% of genera and 8% of species of Elmidae.

  • riqueza generica y distribucion de Elmidae insecta coleoptera byrrhoidea en el departamento del valle del cauca colombia
    reponame: Repositorio Institucional de Documentación Científica Humboldt, 2015
    Co-Authors: Marcela Gonzalezcordoba, Maria Del Carmen Zuniga, Verónica Manzo
    Abstract:

    Elmidae is a family of aquatic beetles common in clean water streams and widely used in studies of environmental bioindication. This work was proposed in order to recognize the richness of the Elmidae genera in the department of Valle del Cauca and recopile information about its distribution since biological colection data. A total of 3305 specimens (larvae and adults) were examined, mainly stored in the Museum of Entomology at the University of Valle and associated with field work completed between 1991 and 2014. The samples were collected from 116 locations within 19 municipalities, and are representative of 63 streams, mainly belonging to the Anchicaya, Cauca, Dagua and San Juan rivers basin and the Andean and Pacific natural regions. A total of 16 genera were documented: eleven Elminae (Austrolimnius, Cylloepus, Heterelmis, Huleechius, Macrelmis, Microcylloepus, Neoelmis, Notelmis, Onychelmis, Xenelmis and Stenhelmoides, the last not found in local collection) and five Larainae (Disersus, Hexanchorus, Phanocerus, Pharceonus and Pseudodisersus). These genera were distributed from 110 to 2440 m a.s.l., with greater taxonomic representation between 1000 and 2000 m a.s.l. The two genera most widely distributed were Macrelmis and Heterelmis, while the river with the highest taxonomic representation was Guabas. The distribution area for Austrolimnius, Huleechius, Notelmis and Xenelmis was expanded to the Valle del Cauca region.

  • los elmidos de la region neotropical coleoptera byrrhoidea Elmidae diversidad y distribucion
    Revista de la Sociedad Entomológica Argentina, 2013
    Co-Authors: Verónica Manzo
    Abstract:

    Elmidae, commonly called riffle beetles, includes small to medium sized aquatic beetles. Elmids are common in running waters with high oxygen content, making them good indicators of water quality. This family shows a worldwide distribution, being more diverse in the Neotropical region, with 46 described genera and about 435 species. This paper summarizes all known information about Elmidae from the Neotropical Region. This contribution presents updated data on the distribution of riffles beetles, the number of species described by genera and country, and a list of species with known larvae.

  • The riffle beetles (Coleoptera: Byrrhoidea: Elmidae) from the Neotropical Region: diversity and distributions
    Revista de la Sociedad Entomológica Argentina, 2013
    Co-Authors: Verónica Manzo
    Abstract:

    Elmidae, commonly called riffle beetles, includes small to medium sized aquatic beetles. Elmids are common in running waters with high oxygen content, making them good indicators of water quality. This family shows a worldwide distribution, being more diverse in the Neotropical region, with 46 described genera and about 435 species. This paper summarizes all known information about Elmidae from the Neotropical Region. This contribution presents updated data on the distribution of riffles beetles, the number of species described by genera and country, and a list of species with known larvae.

  • A key to the known larvae of South American Elmidae (Coleoptera: Byrrhoidea), with a description of the mature larva of Macrelmis saltensis Manzo.
    Annales de Limnologie - International Journal of Limnology, 2008
    Co-Authors: Verónica Manzo, Miguel Archangelsky
    Abstract:

    A key to identify the known mature larvae of the South American genera of the family Elmidae is provided. The key includes seven genera presently assigned to the subfamily Larainae and 15 genera assigned to the subfamily Elminae. New distributional data for all genera and a checklist of described larvae are also included. The mature larva of Macrelmis saltensis Manzo is described and illustrated for the first time, and compared to other known larvae of the granigera species-group. Distributional notes for M. saltensis increase its known range to the north, this being the first citation of the species for Bolivia. Macrelmis isis (Hinton) is also cited for the first time for Bolivia.

Cheryl B Barr - One of the best experts on this subject based on the ideXlab platform.

  • amazonopsis an unusual new genus of riffle beetle from south america with two new species coleoptera Elmidae elminae
    ZooKeys, 2018
    Co-Authors: Cheryl B Barr
    Abstract:

    Amazonopsisgen. n. is described to include A.theranyisp. n. from Peru, Venezuela and French Guiana, and A.camachoisp. n. from Venezuela. The descriptions are accompanied by figures illustrating the male and female habitus of A.theranyi, the male habitus of A.camachoi, and male genitalia of both species. Amazonopsistheranyi exhibits pronounced secondary sexual dimorphism which likewise may be a characteristic of the genus. Amazonopsis males have modified protarsal and mesotarsal claws, a pair of small spines on the anterior prosternum, and a pair of ventrally directed processes on the posterior metaventrite. Females of A.theranyi display a pair of unique, oval perforations in the cuticle of the pronotum and have unmodified claws; females of A.camachoi are unknown. Descriptions are furnished of the stream habitats and microhabitats where the study specimens were collected.

  • neoelmis guarani shepard barr a sexually dimorphic new species from paraguay insecta coleoptera Elmidae elminae
    Zootaxa, 2016
    Co-Authors: William D. Shepard, Cheryl B Barr
    Abstract:

    Neoelmis guarani new species is described and illustrated from specimens collected in streams of the Cordillera de los Altos, southeast of Asuncion and near the towns of Piribebuy and Chololo, Paraguay. Males and females of this species exhibit strong secondary sexual dimorphism not found in other known species of Neoelmis . Males have striking modifications of the pro- and mesothoracic legs and bear a pair of ventrally projecting processes on both the mesoventrite and the second abdominal ventrite. Females have the elytra modified with a pair of dorsal projections.

  • typhloelmisbarr coleoptera Elmidae elminae a new stygobiontic riffle beetle genus with three new species from texas usa
    Coleopterists Bulletin, 2015
    Co-Authors: Cheryl B Barr, Randy J Gibson, Peter H Diaz
    Abstract:

    Abstract The adult and larva of Typhloelmis Barr, a new genus of eyeless, stygobiontic elmid from springs in west-central Texas, and the adults of three new species, Typhloelmis caroline Barr, Typhloelmis finegan Barr, and Typhloelmis sanfelipe Barr, are described, diagnosed, and illustrated. Taxonomic couplets are provided for the insertion of the new genus into existing adult elmid generic keys, and an adult key to the species of Typhloelmis is included. Stygobiontic elmids are reviewed, and the uniqueness of Typhloelmis is discussed. Typhloelmis is the first stygobiontic elmid genus reported from the Nearctic ecozone and is the seventh described worldwide. It is only the second elmid genus known to be anophthalmic (completely eyeless). The Edwards-Trinity Aquifer and the spring habitat in which the genus and species occur are described in detail, and potential threats are discussed.

  • Bryelmis Barr (Coleoptera: Elmidae: Elminae), a New Genus of Riffle Beetle with Three New Species from the Pacific Northwest, U.S.A.
    The Coleopterists Bulletin, 2011
    Co-Authors: Cheryl B Barr
    Abstract:

    Bryelmis Barr, a new genus of elmid, and three new species, Bryelmis idahoensis Barr, Bryelmis rivularis Barr, and Bryelmis siskiyou Barr, are described from streams and springs in Washington, Oregon, California, and Idaho. Drawings or photographs of the adult habitus and male genitalia of each species, and of the larval habitus of the genus, are included, as well as a key to the adults of the species and revised couplets for insertion into existing adult and larval keys to the Elmidae. The biogeography, habitat, and microhabitat of the species are discussed. Aquatic liverworts are the unusual primary microhabitat of all three species of Bryelmis.

Fedor Čiampor - One of the best experts on this subject based on the ideXlab platform.

Manfred A. Jäch - One of the best experts on this subject based on the ideXlab platform.

  • Ancyronyx lianlabangorum sp. nov., a new spider riffle beetle from Sarawak, and new distribution records for A. pulcherrimus Kodada, Jäch & Čiampor based on DNA barcodes (Coleoptera, Elmidae)
    ZooKeys, 2020
    Co-Authors: Jan Kodada, Manfred A. Jäch, Zuzana Čiamporová-zaťovičová, Hendrik Freitag, Katarína Goffová, Dávid Selnekovič, Fedor Čiampor
    Abstract:

    Ancyronyx lianlabangorum sp. nov. (Coleoptera, Elmidae), a new spider riffle beetle from the Kelabit Highlands (Sarawak, northern Borneo), is described. Illustrations of the habitus and diagnostic characters of the new species and the similar, polymorphic A. pulcherrimus Kodada et al. are presented. Differences to closely related species, based on COI nucleotide sequences and morphological characters, are discussed. Ancyronyx pulcherrimus is here recorded from Sarawak for the first time, based on DNA barcoding.

  • Spatio-temporal distribution and species traits of water beetles along an oligotrophic hydrosystem: a case study
    Annales de Limnologie - International Journal of Limnology, 2019
    Co-Authors: Vlatka Mičetić Stanković, Manfred A. Jäch, Marija Ivković, Igor Stanković, Petar Kružić, Mladen Kučinić
    Abstract:

    This study presents the first comprehensive investigation of population aspects and ecological traits of water beetles in oligotrophic hydrosystems with tufa formation in southeastern Europe. Diverse lotic habitats (springs, rivers and tufa barriers) were investigated monthly for one year in Plitvice Lakes National Park in Croatia. Elmidae were the most diverse and abundant family, followed by Scirtidae and Hydraenidae. The ecological traits of water beetles were primarily defined by nutrients and water depth. Elmis bosnica Zaitzev, 1908, about which little has been published, was found to be bryophilous and to prefer low water temperatures. Biogeographical analysis revealed the dominance of typical southeastern and Mediterranean species. Species population dynamics could be attributed to differences in flow permanence, current velocity and canopy coverage. Both current velocity and water depth significantly influenced the occurrence of larval stages, while abundance of adults correlated with water depth. Our results highlight tufa barriers as preferred habitats for species of the genus Riolus and the family Scirtidae. The results of this study, many of which are the first to be reported for water beetles, provide a basis for further investigations of these animals and their ecology in oligotrophic hydrosystems with tufa. In particular, our study demonstrates the potential of Elmidae as water quality indicators, which should be considered in future conservation and protection management efforts.

  • Annotated checklist of Byrrhoidea(Coleoptera: Byrrhidae, Elmidae, Limnichidae, Psephenidae) from Iran
    Elytron, 2016
    Co-Authors: Manfred A. Jäch, Hadi Ostovan, Hassan Ghahari, Andreas Pütz
    Abstract:

    The distribution of the Byrrhidae, Elmidae, Limnichidae and Psephenidae (Coleoptera: Byrrhoidea) of Iran is summarized. A total of eight species of Byrrhidae (four genera), 17 species of Elmidae (seven genera), two species of Limnichidae (one genus), and two species of Psephenidae (two genera) are listed. Curimopsis (Curimopsis) taurica Paulus, 1973 (Byrrhidae) is recorded from Iran for the first time.

  • Coleoptera: Elmidae and ProtElmidae
    2016
    Co-Authors: Manfred A. Jäch, William D. Shepard, Jan Kodada, Michaela Brojer, Fedor Čiampor
    Abstract:

    Coleoptera: Elmidae and ProtElmidae includes 151 extant genera and 1501 extant species as well as four fossil species described before 2015. ProtElmidae are here elevated from tribal rank to family rank.

  • Coleoptera: Elmidae and ProtElmidae - Genus and Species Group Names
    Coleoptera: Elmidae and Protelmidae, 2016
    Co-Authors: Manfred A. Jäch, William D. Shepard, Fedor Čiampor, Jan Kodada, Michaela Brojer
    Abstract:

    Coleoptera: Elmidae and ProtElmidae includes 151 extant genera and 1501 extant species as well as four fossil species described before 2015. ProtElmidae are here elevated from tribal rank to family rank.

Sylvain Doledec - One of the best experts on this subject based on the ideXlab platform.

  • Are patterns in the taxonomic, biological and ecological traits of water beetles congruent in Mediterranean ecosystems ?
    Freshwater Biology, 2012
    Co-Authors: Félix Picazo, Andrés Millan, Sylvain Doledec
    Abstract:

    1. Coleoptera species show considerable diversity in life histories and ecological strategies, which makes possible their wide distribution in freshwater habitats, including highly stressed ones such as saline or temporary waterbodies. Explaining how particular combinations of traits allow species to occupy distinctive habitats is a central question in ecology. 2. A total of 212 sites, sampled over a wide range of inland aquatic habitats in the south-eastern Iberian Peninsula, yielded 272 species belonging to 68 genera and 11 families. The affinities of genera for 11 biological and 11 ecological traits, gathered from literature and the authors' own expertise, were used to assess the degree of congruence between taxonomic, biological and ecological traits. 3. Taxonomic richness was significantly related to the number of both biological and ecological trait categories, with the richest families also showing the highest functional and ecological diversity. A fuzzy correspondence analysis performed on the abundance-weighed array of biological traits separated genera according to categories of diet, feeding habits, respiration, reproduction and locomotion. A similar analysis of ecological traits revealed that preferences related to longitudinal distribution (headwater to mouth), local habitat and current velocity best discriminated genera. At the family level, there was a distinctive functional grouping of genera based on biological traits. Only Elmidae showed noticeable homogeneity across genera for both biological and ecological traits. 4. Co-inertia analysis demonstrated a significant match between biological and ecological traits (Rv-correlation = 0.35, P < 0.001). Elmidae genera displayed the highest concordance, whereas Hydraenidae demonstrated the lowest. 5. These results indicate that the predominance of habitat filtering processes in headwater streams yields biological trait conservatism (as shown by Elmidae genera), as well as trait convergence for some specific traits (for instance, respiration) among certain Dytiscidae genera and other typical rheophilic taxa, whereas other biotic factors, such as competition among species, appear more prominent in less stressed habitats. Further knowledge of traits, especially regarding physiological capabilities, is needed to better understand water beetle life history strategies.