01691nas a2200217 4500008004100000245011500041210006900156300001300225490000800238520102300246653002001269653001601289653001401305653001601319653001801335653001801353100002001371700002001391700001801411856004401429 2022 eng d00aSpanglerelmis, a new genus of Elmidae (Insecta: Coleoptera) from Brazil with new species and biological notes0 aSpanglerelmis a new genus of Elmidae Insecta Coleoptera from Bra a33–56 0 v8133 a

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 São Paulo State, Brazil. Scanning electron microscope images, an identifcation key for the genus and habitat notes are also presented.

10aaquatic beetles10aNeotropical10anew genus10anew species10ariffe beetles10aSouth America1 aPolizei, T.T.S.1 aCosta, L.d.S.M.1 aBispo, P.d.C. uhttps://elmidae.myspecies.info/node/19801813nas a2200205 4500008004100000245015200041210006900193300001100262490000800273520114300281653001001424653001801434653001201452653001801464653001301482100001601495700003501511700001701546856004401563 2021 eng d00aA revision of Onychelmis Hinton, 1941 (Coleoptera: Elmidae), with description of new species, DNA barcoding and notes on the geography of the genus0 arevision of Onychelmis Hinton 1941 Coleoptera Elmidae with descr a1–350 v7393 a

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 Delève, 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.

10aAndes10aDNA barcoding10aElminae10aSouth America10ataxonomy1 aLinský, M.1 aČiamporová-Zaťovičová, Z.1 aČiampor, F. uhttps://elmidae.myspecies.info/node/183