@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} } @article {46, title = {Larvae and a new species of Ancyronyx Erichson, 1847 (Insecta, Coleoptera, Elmidae) from Palawan, Philippines, using DNA sequences for the assignment of the developmental stages}, journal = {Zookeys}, volume = {136}, year = {2011}, pages = {47-82}, abstract = {

Ancyronyx montanus sp. n. is described based on adults and larvae, matched using their cox1 DNA sequence data. Larvae of six additional species of Ancyronyx Erichson, 1847 were also described here for the first time, aided by cox1 or cob data: A. helgeschneideri A. helgeschneideri Freitag \& J\äch, 2007, A. minerva Freitag \& J\äch, 2007, A. patrolus Freitag \& J\äch, 2007, A. procerus J\äch, 1994, A. punkti Freitag \& J\äch, 2007, A. pseudopatrolus Freitag \& J\äch, 2007. Ancyronyx procerus is newly recorded from the Philippines by a larval specimen from Busuanga island. The new species and larval stages are described in detail and illustrated by digital and SEM images. A key to the Ancyronyx larvae of Palawan and an updated checklist of Philippine Ancyronyx is provided.

}, keywords = {Ancyronyx, AQUA Palawana, cox1, DNA barcoding, Elmidae, larva, new species, Spider Water Beetle, taxonomy}, doi = {10.3897/zookeys.136.1914}, author = {H. Freitag and M. Balke} } @article {44, title = {Ancyronyx Erichson, 1847 (Coleoptera, Elmidae) from Mindoro, Philippines, with description of the larvae and two new species using DNA sequences for the assignment of the developmental stages}, journal = {Zookeys}, volume = {321}, year = {2013}, pages = {35-64}, abstract = {

Ancyronyx buhid sp. n. and A. tamaraw sp. n. are described based on adults and larvae, matched using their cox1 or cob DNA sequence data. Additional records of A. schillhammeri J\äch, 1994 and A. minerva Freitag \& J\äch, 2007 from Mindoro are listed. The previously unknown larva of A. schillhammeri is also described here, aided by cox1 data. The new species and larval stages are described in detail and illustrated by SEM and stacked microscopic images. Keys to the adult and larval Ancyronyx species of Mindoro and an updated checklist of Philippine Ancyronyx species are provided. The usefulness as bioindicators, the phylogenetic relationships and biogeographic aspects affecting the distribution patterns are briefy discussed.

}, keywords = {Ancyronyx, Buhid, cob, Coleoptera, cox1, DNA barcoding, Elmidae, larva, Mindoro, new species, Philippines, Spider Water Beetles, taxonomy}, doi = {10.3897/zookeys.321.5395}, author = {H. Freitag} } @article {29, title = {Malaysian species of Dryopomorphus Hinton, 1936 (Insecta: Coleoptera: Elmidae)}, journal = {Zootaxa}, volume = {3564}, year = {2012}, pages = {1-16}, abstract = {

We provide a review of species of the genus Dryopomorphus Hinton, 1936 occurring in Malaysia. Three known species: D. bishopi Hinton, 1971; D. satoi Spangler, 1985 and D. hendrichi\ {\v C}iampor Jr \& Kodada, 2006 are diagnosed and five new species from the Malay Peninsula and Borneo are described here: D. grandis, D. jaechi, D. memei, D. pekariki and D. sarawacensis. Habitus photographs, drawings of genitalia and diagnostic characters of all species are included.

}, keywords = {Coleoptera, Dryopomorphus, Elmidae, new species, Southeast Asia, taxonomy}, author = {F. {\v C}iampor Jr and Z. {\v C}iamporov{\'a}-Za{\v t}ovi{\v c}ov{\'a} and J. Kodada} }