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/191