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/19401701nas 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/149