01795nas a2200229 4500008004100000245014300041210006900184300001300253490000900266520109200275653002001367653001101387653001301398653001201411653001901423653001901442653001401461653001301475100001501488700001801503856004401521 2021 eng d00aA review of the Larainae of Australia with description of seven new species and the new genus Australara (Coleoptera, Byrrhoidea, Elmidae)0 areview of the Larainae of Australia with description of seven ne a55–1170 v10733 a

The three genera and four species of Larainae (Elmidae) previously described from Australia are reviewed, and one new genus and seven new species are described: Australara glaisteri gen. et sp. nov., Ovolara lawrencei sp. nov., Ovolara monteithi sp. nov., Stetholus carinatus sp. nov., Stetholus longipennis sp. nov., Stetholus metatibialis sp. nov., and Stetholus woronora sp. nov. A lectotype is designated for Hydora laticeps (Carter & Zeck), and the first new collection records of the species are reported since its description in 1932. The occurrence in Australia of Potamophilinus papuanus Satô, described from Papua New Guinea, is reported. A key to the species, photographic images of the external morphology and male genitalia, distribution maps, and habitat and behavioral information, when known, are provided for all twelve species of Australian Larainae.

10aaquatic beetles10aHydora10anew taxa10aOvolara10aPotamophilinus10ariffle beetles10aStetholus10ataxonomy1 aBarr, C.B.1 aShepard, W.D. uhttps://elmidae.myspecies.info/node/19401774nas a2200229 4500008004100000245013200041210006900173300001400242490000700256520107200263653002001335653001701355653002201372653001801394653001201412653001301424100001501437700001501452700001601467700001701483856004401500 2021 eng d00aAmazonopsis cerdani (Coleoptera: Elmidae: Elminae), a New Species of Riffle Beetle from French Guiana with Habitat Observations0 aAmazonopsis cerdani Coleoptera Elmidae Elminae a New Species of  a427–4390 v753 a

A third species of Amazonopsis Barr, 2018, Amazonopsis cerdani Barr and Cerdan, new species (Coleoptera: Elmidae), is herein described from French Guiana. One female paratype of Amazonopsis theranyi Barr from Peru is tentatively reassigned to A. cerdani as a non-paratype. Photographic images of the male and female habitus, and the male genitalia, are provided, as is a distribution map and a key to the species. Amazonopsis cerdani differs from A. theranyi from Peru and Amazonopsis camachoi Barr from Venezuela by the presence of prominent spines on protarsomeres 1–4 of males, among other characters. The habitat of this species is small, shallow, lowland streams with sandy-silty substrates and low flow. Specimens were collected from unconsolidated leaf litter in depositional areas, and from stick and leaf packs lodged in the current. Genetic analysis conducted on three specimens from two localities, a male and two females, showed that they are conspecific.

10aaquatic beetles10aDNA analysis10asexual dimorphism10aSouth America10aStreams10ataxonomy1 aBarr, C.B.1 aCerdan, A.1 aClavier, S.1 aMurienne, J. uhttps://elmidae.myspecies.info/node/19101701nas a2200217 4500008004100000245012700041210006900168300001200237490000800249520103700257653002001294653001801314653001501332653001901347653000901366653002201375653001301397653001401410100001501424856004401439 2018 eng d00aAmazonopsis, an unusual new genus of riffle beetle from South America with two new species (Coleoptera, Elmidae, Elminae)0 aAmazonopsis an unusual new genus of riffle beetle from South Ame a71–920 v8033 a

Amazonopsis gen. n. is described to include A. theranyi sp. n. from Peru, Venezuela and French Guiana, and A. camachoi sp. n. from Venezuela. The descriptions are accompanied by figures illustrating the male and female habitus of A. theranyi, the male habitus of A. camachoi, and male genitalia of both species. Amazonopsis theranyi exhibits pronounced secondary sexual dimorphism which likewise may be a characteristic of the genus. Amazonopsis males have modifed protarsal and mesotarsal claws, a pair of small spines on the anterior prosternum, and a pair of ventrally directed processes on the posterior metaventrite. Females of A. theranyi display a pair of unique, oval perforations in the cuticle of the pronotum and have unmodifed claws; females of A. camachoi are unknown. Descriptions are furnished of the stream habitats and microhabitats where the study specimens were collected.

10aaquatic beetles10aFrench Guiana10aNeotropics10aperi-Amazonian10aPeru10asexual dimorphism10ataxonomy10aVenezuela1 aBarr, C.B. uhttps://elmidae.myspecies.info/node/14901368nas a2200181 4500008004100000245013700041210006900178300001200247490000700259520075600266653002001022653002201042653001701064653002101081653001301102100001501115856005601130 2011 eng d00aBryelmis Barr (Coleoptera: Elmidae: Elminae), a New Genus of Riffle Beetle with Three New Species from the Pacific Northwest, U.S.A.0 aBryelmis Barr Coleoptera Elmidae Elminae a New Genus of Riffle B a197-2120 v653 a

Bryelmis Barr, a new genus of elmid, and three new species, Bryelmis idahoensis Barr, Bryelmis rivularis Barr, and
Bryelmis siskiyou Barr, are described from streams and springs in Washington, Oregon, California, and Idaho. Drawings or photographs of the adult habitus and male genitalia of each species, and of the larval habitus of the genus, are included, as well as a key to the adults of the species and revised couplets for insertion into existing adult and larval keys to the Elmidae. The biogeography, habitat, and microhabitat of the species are discussed. Aquatic liverworts are the unusual primary microhabitat of all three species of Bryelmis.

10aaquatic beetles10aaquatic liverwort10aChiloscyphus10aglacial refugium10aNearctic1 aBarr, C.B. uhttp://www.bioone.org/doi/full/10.1649/072.065.030101697nas a2200217 4500008004100000245013100041210006900172300001200241490000700253520100700260653002001267653002801287653001701315653001001332653001501342653001301357100001501370700001701385700001501402856006201417 2015 eng d00aTyphloelmis Barr (Coleoptera: Elmidae: Elminae), a New Stygobiontic Riffle Beetle Genus with Three New Species from Texas, USA0 aTyphloelmis Barr Coleoptera Elmidae Elminae a New Stygobiontic R a531-5580 v693 a

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.

10aaquatic beetles10aEdwards-Trinity Aquifer10akarst spring10alarva10astygofauna10ataxonomy1 aBarr, C.B.1 aGibson, J.R.1 aDiaz, P.H. uhttp://www.bioone.org/doi/full/10.1649/0010-065X-69.4.531