01811nas a2200253 4500008004100000245019000041210006900231300001400300490000700314520097900321653002001300653002401320653001801344653002201362653001301384100001601397700001401413700001601427700001701443700001601460700001801476700001901494856004401513 2020 eng d00aAdditional new species of Grouvellinus Champion 1923 (Insecta, Coleoptera, Elmidae) discovered by citizen scientists and DNA barcoded in the field applying a novel MinION-based workflow0 aAdditional new species of Grouvellinus Champion 1923 Insecta Col a2593-26200 v533 a

Four new species, Grouvellinus nigerquadratus sp. nov., G. cruxniger sp. nov., G. luciaensis sp. nov., and G. borneensis sp. nov., are described from Borneo and illustrated in detail. Two additional species of the genus which remain undescribed are briefly diagnosed. The material was collected during Taxon Expeditions’ field course which involved citizen scientists, students and taxonomists. Specimens were collected at altitudes between 270 m and 750 m above sea level using fine-meshed hand-nets and blacklight traps. The morphological species delimitation based on morphology was supplemented and congruent with mtDNA sequences which are the first DNA barcodes for the genus from Borneo. They were obtained in the field using a newly developed rapid and accurate MinION-based workflow. The inter – and intraspecific genetic distances and the problems regarding cryptic species delimitation are discussed.

10aCitizen science10ananopore sequencing10ariffle beetle10ataxon expeditions10ataxonomy1 aFreitag, H.1 aMolls, C.1 aBouma, A.M.1 aGarces, J.M.1 aRossato, M.1 aCosentino, E.1 aDelledonne, M. uhttps://elmidae.myspecies.info/node/16001394nas a2200193 4500008004100000245008300041210006900124300001400193490000700207520081600214653002001030653001601050653001901066653001801085653001301103100002001116700002001136856004401156 2019 eng d00aThe genus Hintonelmis (Coleoptera: Elmidae: Elminae), new species and records0 agenus Hintonelmis Coleoptera Elmidae Elminae new species and rec a2949-29590 v523 a

Hintonelmis is a South American genus of Elmidae, comprising 11 species. Two further new species are here described and illustrated: Hintonelmis guianensis sp. nov. from Guyana, and Hintonelmis roellae sp. nov. from Brazil, can be distinguished from all other known members of the genus by their general colour pattern, some characters of pronotal and elytral sculpture, and the morphology of the male genitalia. The type material is deposited in the Natural History Museum, London, UK and Museum of Zoology of the University of São Paulo, São Paulo, Brazil. New distributional data for species of Hintonelmis are presented for the South of Brazil, Bolivia, Ecuador, and Guyana. We also provide an updated key for the genus species.

10aaquatic beetles10aNeotropical10ariffle beetles10aSouth America10ataxonomy1 aPolizei, T.T.S.1 aBarclay, M.V.L. uhttps://elmidae.myspecies.info/node/15401854nas a2200145 4500008004100000245010600041210006900147300001200216490000700228520132300235653007501558100001601633700001501649856004401664 2017 eng d00aA taxonomic review of the genus Ancyronyx Erichson, 1847 from Sulawesi (Insecta: Coleoptera: Elmidae)0 ataxonomic review of the genus Ancyronyx Erichson 1847 from Sulaw a561-6060 v513 a

Ten new species of the genus Ancyronyx Erichson, 1847 from Sulawesi are described along with additions to the original description of Ancyronyx raffaelacatharina Jäch, 2004. Ancyronyx vincentarnoldi sp. nov. belongs to the Ancyronyx variegatus (Germar, 1824) species-group; Ancyronyx breviparamerus sp. nov., Ancyronyx hafti sp. nov., Ancyronyx henningi sp. nov., Ancyronyx konjo sp. nov., Ancyronyx longiparamerus sp. nov., Ancyronyx skalei sp. nov., Ancyronyx schoedli sp. nov., Ancyronyx tobada sp. nov. and Ancyronyx toraja sp. nov. belong to the Ancyronyx patrolus Freitag & Jäch, 2007 species-group. Diagnostic characters are illustrated by photographs of habitus, line drawings of genitalia and by scanning electron micrographs. An updated checklist of all Ancyronyx species including distribution data is provided. Cox1 mitochondrial DNA sequences were amplified for nine of the species listed above and used to construct a haplotype network by the application of statistical parsimony. The molecular data support our morphological species concept except for two taxa that showed little genetic distance, but were distinguishable by the male genitalia.

10aAncyronyx; Elmidae; new species; mitochondrial DNA; taxonomy; Sulawesi1 aFreitag, H.1 aKodada, J. uhttps://elmidae.myspecies.info/node/13401436nas a2200193 4500008004100000245015900041210006900200300001400269490000700283520078900290653002001079653001801099653001501117653001901132653001301151100002001164700001501184856004301199 2012 eng d00aDescription and notes on the bionomics of a new species of Potamophilops Grouvelle, 1896 (Coleoptera: Elmidae: Larainae), from the Cerrado biome in Brazil0 aDescription and notes on the bionomics of a new species of Potam a717–7270 v463 a

Potamophilops bragaorum sp. nov. is described and illustrated based on adult specimens collected in a mountainous area in the Cerrado biome in Taquaruçú district, Tocantins state, Brazil. This is the second species described in the genus and it represents the northernmost record of Potamophilops, which is known only from Argentina and Brazil. In this article we provide a diagnosis, details on the morphology and images of the habitus and structures used to determine the species and to distinguish the gender. Field observations permitted the description of some aspects on the biology of the new species that seem to be very similar to those of other Larainae genera. Examination of gut contents revealed a diet based mostly on periphyton.

10aaquatic insects10aCerrado biome10aNeotropics10ariffle beetles10ataxonomy1 aFernandes, A.S.1 aHamada, N. uhttps://elmidae.myspecies.info/node/69