@article {198, title = {Spanglerelmis, a new genus of Elmidae (Insecta: Coleoptera) from Brazil with new species and biological notes}, journal = {European Journal of Taxonomy}, volume = {813}, year = {2022}, pages = {33{\textendash}56 }, abstract = {

In this study, the new genus Spanglerelmis Polizei \& Bispo is described; Microcylloepus ochus Hinton, 1940 is synonymized with Microcylloepus femoralis Hinton, 1940, and transferred to the new genus; and two new species, S. xiririca gen. et sp. nov. and S. timburi gen. et sp. nov. are described. The new genus can be characterized by the combination of the following characters: 1) pronotum without transverse, longitudinal or oblique impressions, sulci or gibbosities on disc; 2) elytra with a carina on interval III and two sublateral carinae on intervals V and VI; 3) mesoventrite with sides strongly raised; and 4) femora with an oblique belt of tomentum dorsally and a transverse belt ventrally. The specimens of the two new species were collected mainly in riffes of unimpacted streams in the Atlantic Forest in S\ão Paulo State, Brazil. Scanning electron microscope images, an identifcation key for the genus and habitat notes are also presented.

}, keywords = {aquatic beetles, Neotropical, new genus, new species, riffe beetles, South America}, doi = {https://doi.org/10.5852/ejt.2022.813.1731}, author = {T.T.S. Polizei and L.d.S.M. Costa and P.d.C. Bispo} } @article {196, title = {Elmidae of Sarawak: the genus Potamophilus Germar, 1811, with a description of P. kelabitensis sp. nov. (Insecta: Coleoptera)}, journal = {European Journal of Taxonomy}, volume = {806}, year = {2022}, pages = {1{\textendash}18}, abstract = {

Potamophilus kelabitensis sp. nov., a new rife beetle (Coleoptera, Elmidae) discovered in the Kelabit Highlands (northern Sarawak) and Sapulut environment (southern Sabah), is described. Illustrations of the habitus and diagnostic characters of the new species are presented. Diferences from the type species P. acuminatus (Fabricius, 1792) from the Palaearctic region, based on DNA barcodes and morphological characters, are discussed. Selected morphological characters of all known species of Potamophilus from Vietnam, Myanmar, and Papua New Guinea are also compared with the new species. The systematic position of the genus relative to other sympatric genera of the subfamilies Larainae LeConte, 1861 and selected Elminae Curtis, 1830 belonging to three tribes is discussed based on phylogenetic trees inferred from the mitochondrial COI and nuclear ArgK as well as 18S rRNA gene sequences.

}, keywords = {Borneo, integrative taxonomy, Potamophilus, rife beetles}, doi = {https://doi.org/10.5852/ejt.2022.806.1695}, author = {J. Kodada and D.S. Boukal and P. V{\v d}a{\v c}n{\'y} and K. Goffov{\'a} and K. Ondrejkov{\'a}} } @article {183, title = {A revision of Onychelmis Hinton, 1941 (Coleoptera: Elmidae), with description of new species, DNA barcoding and notes on the geography of the genus}, journal = {European Journal of Taxonomy}, volume = {739}, year = {2021}, pages = {1{\textendash}35}, abstract = {

The genus Onychelmis Hinton, 1941 was for a long time regarded as a small taxon with only three known species distributed in the Andes. A study of new material from Ecuador, using morphological and molecular data, has resulted in the discovery of five new species: Onychelmis lenkae sp. nov., O. lobata sp. nov., O. minor sp. nov., O. onorei sp. nov. and O. splendida sp. nov. We also revised the entire genus and redescribed the three known species, O. longicollis (Sharp, 1882), O. leleupi Del\ève, 1968 and O. whiteheadi Spangler \& Santiago, 1991. Habitus photographs of adults are provided, together with line drawings of male and female genitalia, and schematic illustrations of the distribution of femoral tomentum for each species. DNA sequences for barcoding the COI mtDNA fragment were used to support species delimitation and to suggest possible relationships among species. The revision includes a key to adults of all species of Onychelmis and notes on the biogeography of the genus, with an updated distribution map.

}, keywords = {Andes, DNA barcoding, Elminae, South America, taxonomy}, doi = {https://doi.org/10.5852/ejt.2021.739.1263}, author = {M. Linsk{\'y} and Z. {\v C}iamporov{\'a}-Za{\v t}ovi{\v c}ov{\'a} and F. {\v C}iampor Jr} }