@article {160, title = {Additional new species of Grouvellinus Champion 1923 (Insecta, Coleoptera, Elmidae) discovered by citizen scientists and DNA barcoded in the field applying a novel MinION-based workflow}, journal = {Journal of Natural History}, volume = {53}, year = {2020}, pages = {2593-2620}, abstract = {

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.

}, keywords = {Citizen science, nanopore sequencing, riffle beetle, taxon expeditions, taxonomy}, doi = {https://doi.org/10.1080/00222933.2019.1709669}, author = {H. Freitag and C. Molls and A.M. Bouma and J.M. Garces and M. Rossato and E. Cosentino and M. Delledonne} } @article {154, title = {The genus Hintonelmis (Coleoptera: Elmidae: Elminae), new species and records}, journal = {Journal of Natural History}, volume = {52}, year = {2019}, pages = {2949-2959}, abstract = {

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 S\ão Paulo, S\ão 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.

}, keywords = {aquatic beetles, Neotropical, riffle beetles, South America, taxonomy}, doi = {https://doi.org/10.1080/00222933.2018.1560512}, author = {T.T.S. Polizei and M.V.L. Barclay} } @article {134, title = {A taxonomic review of the genus Ancyronyx Erichson, 1847 from Sulawesi (Insecta: Coleoptera: Elmidae)}, journal = {Journal of Natural History}, volume = {51}, year = {2017}, pages = {561-606}, abstract = {

Ten new species of the genus Ancyronyx Erichson, 1847 from Sulawesi are described along with additions to the original description of Ancyronyx raffaelacatharina J\äch, 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 \& J\äch, 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.

}, keywords = {Ancyronyx; Elmidae; new species; mitochondrial DNA; taxonomy; Sulawesi}, doi = {10.1080/00222933.2017.1285447}, author = {H. Freitag and J. Kodada} } @article {69, title = {Description and notes on the bionomics of a new species of Potamophilops Grouvelle, 1896 (Coleoptera: Elmidae: Larainae), from the Cerrado biome in Brazil}, journal = {Journal of Natural History}, volume = {46}, year = {2012}, pages = {717{\textendash}727}, abstract = {

Potamophilops bragaorum sp. nov. is described and illustrated based on adult specimens collected in a mountainous area in the Cerrado biome in Taquaru\ç\ú 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.

}, keywords = {aquatic insects, Cerrado biome, Neotropics, riffle beetles, taxonomy}, author = {A.S. Fernandes and N. Hamada} }