@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 {139, title = {Description of Larva of Dryopomorphus yaku Yoshitomi et Sat{\^o} with Distributional and Ecological Notes on the Japanese Members of the Genus Dryopomorphus Hinton (Coleoptera: Elmidae)}, journal = {Entomological Review of Japan}, volume = {64}, year = {2009}, pages = {41-50}, abstract = {

Larva of Dryopomorphus yaku Yoshitomi et Sat\ô from Yakushima Is. is descried. Larva of Dryopomorphus yaku resembles that of D. amami in external morphology including microstructure on body surface

}, keywords = {Coleoptera, Dryopomorphus yaku, Elmidae, larva}, author = {M. Hayashi} } @article {59, title = {Typhloelmis Barr (Coleoptera: Elmidae: Elminae), a New Stygobiontic Riffle Beetle Genus with Three New Species from Texas, USA}, journal = {The Coleopterists Bulletin}, volume = {69}, year = {2015}, pages = {531-558}, abstract = {

The adult and larva of Typhloelmis Barr, a new genus of eyeless, stygobiontic elmid from springs in west-central
Texas, and the adults of three new species, Typhloelmis caroline Barr, Typhloelmis finegan Barr, and Typhloelmis sanfelipe Barr, are described, diagnosed, and illustrated. Taxonomic couplets are provided for the insertion of the new genus intoexisting adult elmid generic keys, and an adult key to the species of Typhloelmis is included. Stygobiontic elmids are reviewed, and the uniqueness of Typhloelmis is discussed. Typhloelmis is the first stygobiontic elmid genus reported from the Nearctic ecozone and is the seventh described worldwide. It is only the second elmid genus known to be anophthalmic (completely eyeless). The Edwards-Trinity Aquifer and the spring habitat in which the genus and species occur are described in detail, and potential threats are discussed.

}, keywords = {aquatic beetles, Edwards-Trinity Aquifer, karst spring, larva, stygofauna, taxonomy}, doi = {http://dx.doi.org/10.1649/0010-065X-69.4.531}, url = {http://www.bioone.org/doi/full/10.1649/0010-065X-69.4.531}, author = {C.B. Barr}, editor = {J.R. Gibson and P.H. Diaz} } @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} }