@article {201, title = {Molecular phylogeny of the riffle beetle genus Hexanchorus revealed a presence of a new genus (Coleoptera: Elmidae)}, journal = { Arthropod Systematics \& Phylogeny}, volume = {80}, year = {2022}, pages = {575{\textendash}602}, abstract = {

The riffle beetle genus Hexanchorus Sharp is, with 25 known species, the most speciose genus of the subfamily Larainae in the Neotropics and the second largest globally. An analysis of its phylogeny, based on two mitochondrial (COI, 16S) and two nuclear (18S, 28S) markers, including Hexanchorus-like, but morphologically distinct specimens, supported presence of an unknown genus. The new genus, Rumilara gen. nov., is described here with four new species (R. obscura sp. nov., R. paterna sp. nov., R. riberai sp. nov., R. suppressa sp. nov.) and their larvae. The separate position of the new genus is, beside molecular differences, well substantiated by the morphology of adults (the absence of sexual dimorphism, structure of the pronotum) and larvae (pleurites never reaching to sixth abdominal ventrite). H. sagittatus stat. nov. is elevated to species rank based on molecular data, and Rumilara leleupi (Del\ève) comb. nov. is transferred from the genus Hexanchorus and redescribed, based on its morphology.

}, keywords = {Ecuador, Larainae, larva, molecular phylogeny, new genus, new species, Rumilara, South America, taxonomy}, doi = {10.3897/asp.80.e84013}, author = {M. Linsk{\'y} and Z. {\v C}iamporov{\'a}-Za{\v t}ovi{\v c}ov{\'a} and K. La{\v s}{\v s}ov{\'a} and F. {\v C}iampor Jr} } @article {193, title = {Zunielmis pax, a new genus and species of riffle beetles (Coleoptera: Elmidae) from Colombia}, journal = {Zoosystematica Rossica}, volume = {30}, year = {2021}, pages = {248{\textendash}265}, abstract = {

A new riffle beetle, Zunielmis pax gen. et sp. nov. , is described from Colombia (Vichada, Puerto Carre\ño, Bita River basin). It can be distinguished from all the other elmids by having large areas of a microgranular mesh (plastron) on the pronotum and elytra, crenulate lateral margin of the latter two, the shorter interocular distance than diameter of each eye, as well as by the characters of the structure of mandibles, the shape and sculpture of pronotum, and the structure ofmesosternum,mesotibiae and elytra. The imagoes were collected on freshwater sponges. The habitat, where the new species was found, is described, and the adaptive meaning of the characteristics of plastron are discussed. Drawings and photographs of the adult habitus, distinctive morphological characters, and male and female genitalia are provided.

}, keywords = {Coleoptera, Colombia, Elmidae, Elminae, freshwater sponges, Neotropics, new genus, new species, Orinoco River basin, riffle beetles, taxonomy}, doi = {10.31610/zsr/2021.30.2.248}, author = {M. Gonz{\'a}lez-C{\'o}rdoba and V. Manzo and C.E. Granados-Mart{\'\i}nez} } @article {163, title = {Unexpected discovery of a new Podonychus species in Kyushu, Japan (Coleoptera, Elmidae, Elminae, Macronychini)}, journal = {Zookeys}, volume = {933}, year = {2020}, pages = {107{\textendash}123}, abstract = {

Podonychus gyobu sp. nov., a second species of the genus Podonychus J\äch \& Kodada, 1997, hitherto known only from Indonesia, is described from Kyushu, Japan. This new species is similar to P. sagittarius\ J\äch \& Kodada, 1997, but differs from it in the straight penis, arcuate 2nd labial palpomere, and in the 3rd antennomere being longer than wide. The endophallic structures and the larva of P. gyobu sp. nov. are described. A character matrix of the Macronychini genera and a key to the Japanese genera are provided.

}, keywords = {disjunct distribution, endophallus, larvae, new species, riffle beetle, SEM, taxonomy}, doi = {https://doi.org/10.3897/zookeys.933.48771}, url = {https://zookeys.pensoft.net/article/48771/}, author = {H. Yoshitomi and M. Hayashi} } @article {159, title = {A new species of the genus Graphelmis DEL{\`E}VE, 1968 from China (Coleoptera: Elmidae)}, journal = {Zootaxa}, volume = {4728}, year = {2020}, pages = {483{\textendash}488}, abstract = {

Graphelmis dulongensis sp. nov. is described from Yunnan, China. Photos of habitus and male genitalia are given.

}, keywords = {China, new species, riffle beetles, taxonomy, Yunnan}, doi = {https://doi.org/10.11646/zootaxa.4728.4.7}, author = {X. Dong and D. Bian} } @article {140, title = {Dryopomorphus siamensis sp. nov., a new riffle beetle from Thailand (Coleoptera: Elmidae) and remarks on the morphology of the mouthparts and hind wing venation of D. bishopi Hinton}, journal = {Entomological Problems}, volume = {24}, year = {1993}, pages = {51{\textendash}58}, abstract = {

Dryopomorphus siamensis\ sp. nov.\ from Thailand is described. Line drawings of the antenna and the male genitalia are provided. In addition, the labrum, mandible, maxilla, labium and the hind wing of\ D. bishopi\ are examined and illustrated.

}, keywords = {Coleoptera, Dryopomorphus, Elmidae, hind wing venation, morphology, mouthparts, new species, taxonomy}, author = {J. Kodada} } @article {137, title = {Dryopomorphus hendrichi sp.nov. from West Malaysia (Coleoptera: Elmidae)}, journal = {Entomological Problems}, volume = {36}, year = {2006}, pages = {71-73}, abstract = {

Dryopomorphus hendrichi sp.nov. from Johor, West Malaysia is described, illustrated and compared with known Dryopomorphus species.

}, keywords = {Coleoptera, Dryopomorphus, Elmidae, new species, Southeast Asia, taxonomy}, author = {F. {\v C}iampor Jr and J. Kodada} } @article {83, title = {Review of the Korean Elmidae (Coleoptera: Dryopoidea) with descriptions of three new species}, journal = {Aquatic Insects}, volume = {36}, year = {2014}, pages = {93-124}, abstract = {

The Korean species of the riffle beetle family Elmidae are revised. Thirteen species belonging to nine genera are recognized including three new species, Grouvellinus aerosus sp. n., Zaitzeviaria kyungseoki sp. n., and Z. obesa sp. n., and one unidentified species of Ordobrevia Sanderson, 1953. Leptelmis coreana Jung and Bae, 2012 and\ L. ochra Jung and Bae, 2012 are synonymized with L. gracilis gracilis Sharp, 1888. Four species, Macronychus levanidovae Lafer, 1980, Stenelmis koreana Sat\ô, 1978, S. cf. montana Zhang and Yang, 1995, and Zaitzevia tsushimana Nomura, 1963, are newly recorded from South Korea. Descriptions, type information, synonymies, illustrations of diagnostic characters and geographical variation, a checklist, and a key to the adults of the Korean species are provided.

}, keywords = {Coleoptera, Elmidae, Korea, new faunistic records, new species, new synonym, taxonomy}, author = {S.W. Jung and M.A. J{\"a}ch and Y.J. Bae} } @article {79, title = {A new species of Stenelmis (Coleoptera: Elmidae) from South India}, journal = {International Journal of Environmental Biology}, volume = {6}, year = {2016}, pages = {24-28}, abstract = {

A new species of riffle beetle, Stenelmis pandiani sp.n. is described on the basis of male and female adults collected from South India. The morphological and molecular data confirm species assignment and distinguish as a new species.

}, keywords = {DNA barcoding, new species, riffle beetle, taxonomy}, author = {S. Anbalagan and M. Kannan and K. Rekha and M. Krishnan and G. Ponraman and S. Dinakaran} } @article {63, title = {Two new species of Cuspidevia J{\"a}ch \& Boukal, 1995 from China (Coleoptera: Elmidae)}, journal = {Zootaxa}, volume = {2663}, year = {2010}, pages = {53-58}, abstract = {

Two new species of the genus Cuspidevia J\äch \& Boukal, 1995 (Macronychini) are reported from Jiangxi Province,
China: Cuspidevia brevis sp. nov., Cuspidevia jaechi sp. nov. Descriptions, diagnoses, illustrations and a key to
Cuspidevia are given.

}, keywords = {China, Cuspidevia, Macronychini, new species, taxonomy}, author = {D. Bian and L. Ji} }