@article {182, title = {Ancyronyx lianlabangorum sp. nov., a new spider riffle beetle from Sarawak, and new distribution records for A. pulcherrimus Kodada, J{\"a}ch \& {\v C}iampor based on DNA barcodes (Coleoptera, Elmidae)}, journal = {Zookeys}, volume = {1003}, year = {2020}, pages = {31{\textendash}55}, abstract = {

Ancyronyx lianlabangorum sp. nov. (Coleoptera, Elmidae), a new spider riffle beetle from the Kelabit Highlands (Sarawak, northern Borneo), is described. Illustrations of the habitus and diagnostic characters of the new species and the similar, polymorphic A. pulcherrimus Kodada et al. are presented. Differences to closely related species, based on COI nucleotide sequences and morphological characters, are discussed.\ Ancyronyx pulcherrimus is here recorded from Sarawak for the first time, based on DNA barcoding.

}, keywords = {Ancyronyx, Coleoptera, Elmidae, taxonomy, variability}, doi = {https://doi.org/10.3897/zookeys.1003.55541}, author = {J. Kodada and M.A. J{\"a}ch and H. Freitag and Z. {\v C}iamporov{\'a}-Za{\v t}ovi{\v c}ov{\'a} and K. Goffov{\'a} and D. Selnekovi{\v c} and F. {\v C}iampor Jr} } @article {180, title = {Two new species of the genus Ancyronyx Erichson, 1847 from the island of Negros, Philippines (Insecta, Coleoptera, Elmidae)}, journal = {Tijdschrift voor Entomologie}, volume = {163}, year = {2020}, pages = {1-18}, abstract = {

Two new Elmidae species from the Visayan island of Negros, Philippines, Ancyronyx berghaueri sp. n. and Ancyronyx negrosensis sp. n., are described utilizing an integrative taxonomic approach. The new species are characterized by the color of the femora, body size, and the male and female genitalia. Their habitus and diagnostic characters are described and illustrated in detail with microscopic images and digital line drawings. The morphological species delimitation is supplemented by and congruent with COI and cob mtDNA data of several known species of Ancyronyx from the Philippines and Borneo. The material was obtained in connection with a student thesis, the sampling program of the Ateneo de Manila University Biodiversity Laboratory and from repositories. Specimens were collected at altitudes between 30 m and 800 m above sea level in pristine and slightly disturbed habitats. Their suitability as bioindicators and the use of cob sequences for integrative taxonomic studies are briefly discussed

}, keywords = {biodiversity discovery, cob, COI, integrative taxonomy, mtDNA barcode, spider riffle beetle, Visayas}, doi = {https://doi.org/10.1163/22119434-20192087}, author = {M.R. Sabordo and E. Delocado and H. Freitag} } @article {161, title = {Ancyronyx clisteri, a new spider riffle beetle species from Borneo, redescription of A. sarawacensis J{\"a}ch including a description of the larva and new distribution data for A. procerus J{\"a}ch using DNA barcodes (Coleoptera, Elmidae)}, journal = {Zookeys}, volume = {912}, year = {2020}, pages = {25{\textendash}64}, abstract = {

Ancyronyx clisteri sp. nov. (Coleoptera, Elmidae) a new spider riffle beetle discovered from northern Borneo (Brunei; Sabah and Sarawak, Malaysia) and the larva of Ancyronyx sarawacensis J\äch are described. Illustrations of the habitus and diagnostic characters of the new species and the similar and highly variable A. sarawacensis are presented. Differences to closely related species, based on DNA barcodes and morphological characters, are discussed. Association of the larva and the imago of A. sarawacensis, and the occurrence of Ancyronyx procerus J\äch in Peninsular Malaysia and Sabah are confirmed by using COI mtDNA sequences.

}, keywords = {Brunei, COI mtDNA sequences, integrative taxonomy, Malaysia: Sabah and Sarawak, Spider Water Beetle, variability}, doi = {https://doi.org/10.3897/zookeys.912.47796}, author = {J. Kodada and M.A. J{\"a}ch and H. Freitag and Z. {\v C}iamporov{\'a}-Za{\v t}ovi{\v c}ov{\'a} and K. Goffov{\'a} and D. Selnekovi{\v c} and F. {\v C}iampor Jr} } @article {160, title = {Additional new species of Grouvellinus Champion 1923 (Insecta, Coleoptera, Elmidae) discovered by citizen scientists and DNA barcoded in the field applying a novel MinION-based workflow}, journal = {Journal of Natural History}, volume = {53}, year = {2020}, pages = {2593-2620}, abstract = {

Four new species, Grouvellinus nigerquadratus sp. nov., G. cruxniger sp. nov., G. luciaensis sp. nov., and G. borneensis sp. nov., are described from Borneo and illustrated in detail. Two additional species of the genus which remain undescribed are briefly diagnosed. The material was collected during Taxon Expeditions\’ field course which involved citizen scientists, students and taxonomists. Specimens were collected at altitudes between 270 m and 750 m above sea level using fine-meshed hand-nets and blacklight traps. The morphological species delimitation based on morphology was supplemented and congruent with mtDNA sequences which are the first DNA barcodes for the genus from Borneo. They were obtained in the field using a newly developed rapid and accurate MinION-based workflow. The inter \– and intraspecific genetic distances and the problems regarding cryptic species delimitation are discussed.

}, keywords = {Citizen science, nanopore sequencing, riffle beetle, taxon expeditions, taxonomy}, doi = {https://doi.org/10.1080/00222933.2019.1709669}, author = {H. Freitag and C. Molls and A.M. Bouma and J.M. Garces and M. Rossato and E. Cosentino and M. Delledonne} } @article {134, title = {A taxonomic review of the genus Ancyronyx Erichson, 1847 from Sulawesi (Insecta: Coleoptera: Elmidae)}, journal = {Journal of Natural History}, volume = {51}, year = {2017}, pages = {561-606}, abstract = {

Ten new species of the genus Ancyronyx Erichson, 1847 from Sulawesi are described along with additions to the original description of Ancyronyx raffaelacatharina J\äch, 2004. Ancyronyx vincentarnoldi sp. nov. belongs to the Ancyronyx variegatus (Germar, 1824) species-group; Ancyronyx breviparamerus sp. nov., Ancyronyx hafti sp. nov., Ancyronyx henningi sp. nov., Ancyronyx konjo sp. nov., Ancyronyx longiparamerus sp. nov., Ancyronyx skalei sp. nov., Ancyronyx schoedli sp. nov., Ancyronyx tobada sp. nov. and Ancyronyx toraja sp. nov. belong to the Ancyronyx patrolus Freitag \& J\äch, 2007 species-group. Diagnostic characters are illustrated by photographs of habitus, line drawings of genitalia and by scanning electron micrographs. An updated checklist of all Ancyronyx species including distribution data is provided. Cox1 mitochondrial DNA sequences were amplified for nine of the species listed above and used to construct a haplotype network by the application of statistical parsimony. The molecular data support our morphological species concept except for two taxa that showed little genetic distance, but were distinguishable by the male genitalia.

}, keywords = {Ancyronyx; Elmidae; new species; mitochondrial DNA; taxonomy; Sulawesi}, doi = {10.1080/00222933.2017.1285447}, author = {H. Freitag and J. Kodada} } @article {133, title = {Larvae of Ancyronyx Erichson, 1847 (Insecta: Coleoptera: Elmidae) from Sulawesi, using DNA sequences for the assignment of the larval stages}, journal = {Zootaxa}, volume = {4299}, year = {2017}, pages = {121{\textendash}130}, abstract = {

We describe the immature stages of six Ancyronyx (Spider Riffle Beetles) species from Sulawesi: A. henningi Freitag \& Kodada, 2017; A. longiparamerus Freitag \& Kodada, 2017; A. skalei Freitag \& Kodada, 2017; A. schoedli Freitag \& Kodada, 2017; A. tobada Freitag \& Kodada, 2017 and A. toraja Freitag \& Kodada, 2017. The larvae were assigned to adults by comparison of their Cox1 gene fragment (mtDNA) which was amplified, sequenced and aligned with the corresponding locus of identified adults. The larvae are illustrated with habitus photographs and SEM micrographs.

}, keywords = {Ancyronyx, DNA-taxonomy, Elmidae, larval stage, Sulawes}, author = {H. Freitag and J. Kodada} } @article {47, title = {Ancyronyx jaechi sp.n. from Sri Lanka, the first record of the genus Ancyronyx Erichson, 1847 (Insecta: Coleoptera: Elmidae) from the Indian Subcontinent, and a world checklist of species}, journal = {Zootaxa}, volume = {3382}, year = {2012}, pages = {59-65}, chapter = {59}, author = {H. Freitag} } @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 {45, title = {The genus Ancyronyx Erichson, 1847 (Coleoptera, Elmidae) in Palawan and Busuanga, (Philippines) with descriptions of six new species}, journal = {Zootaxa}, volume = {1590}, year = {2007}, pages = {37-59}, abstract = {

The species of the elmid genus Ancyronyx Erichson from the Philippine islands of Palawan and Busuanga are revised. Six new species are described: Ancyronyx helgeschneideri Freitag \& J\äch sp. n., A. minerva Freitag \& J\äch sp. n., A. minutulus Freitag \& J\äch sp. n., A. patrolus Freitag \& J\äch sp. n., A. pseudopatrolus Freitag \& J\äch sp. n., and A. punkti Freitag \& J\äch sp. n. A checklist and a key to the species of Ancyronyx recorded from the Philippines are provided.

}, keywords = {Ancyronyx, Busuanga, Coleoptera, Elmidae, Palawan, Philippines, Southeast Asia, taxonomy, water beetles}, author = {H. Freitag and M.A. J{\"a}ch} } @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} }