02325nas a2200157 4500008004100000245011100041210006900152300001000221490000700231520177100238653006202009100001602071700001602087700002002103856004402123 2015 eng d00aA new species and lectotype designations for New Zealand Hydora (Elmidae: Larainae) with a world checklist0 anew species and lectotype designations for New Zealand Hydora El a38-570 v383 a

The family Elmidae is represented by a single genus Hydora Broun in New Zealand; they are the most abundant Coleoptera encountered in streams there. There are nine previously described species of Hydora, six from New Zealand, to which we add Hydora musci sp. nov. based on larvae and adults. Hydora musci can be distinguished from all remaining New Zealand species by the following characters: adult with pronotum with weak lateral transverse depression, pronotal lateral carina incomplete extending from posterior margin approximately two-thirds anteriorly, sublateral longitudinal carina less than one-third of the average carina length; elytral punctate striae poorly developed, elytral setae no longer than one-third width of eye, outer surface of mesotibia polished, surface of metatibia not polished; larva with thoracic and abdominal segments bearing single dorsal and lateral protrusions (often reduced), tooth absent on anterior margin of head, laterotergites complete on abdominal segments I and II, complete to incomplete on segments III to IV. Most specimens of H. musci were found in stable tributary streams containing bryophytes in the Arnold River Catchment 31 km inland from Greymouth on the West Coast of the South Island. Larvae are grazers that co-exist with adults at the stream margins and in splash zones associated with bryophytes attached to large boulders. A catalogue of the world Hydora species is included, and lectotypy is established for the following New Zealand species: Hydora subaenea Broun, Hydora picea (Broun), Hydora obsoleta Broun, Hydora nitida Broun, Hydora lanigera Broun and Hydora angusticollis (Pascoe).

10aaquatic insects; lotic habitat; setal morphology; streams1 aLambert, P.1 aMaier, C.A.1 aLeschen, R.A.B. uhttps://elmidae.myspecies.info/node/14801290nas a2200205 4500008004100000245012000041210006900161300001400230490000900244520063800253653002000891653001800911653002300929653001800952653001900970653001700989100001601006700001801022856004401040 2014 eng d00aHexanchorus bifurcatus sp. nov., a new tepui riffle beetle (Coleoptera: Elmidae: Larainae) from Tafelberg, Suriname0 aHexanchorus bifurcatus sp nov a new tepui riffle beetle Coleopte a137–1430 v38953 a

Here we present the first published record of a laraine elmid from Suriname, which represents a new species – Hexanchorus bifurcatus sp. nov. Specimens were collected from the summit of Tafelberg, a table mountain near the Wilhelmina Range of Suriname. This species can be distinguished from all other Hexanchorus by the bifurcate elytral apices and median projection of the third abdominal ventrite of the female, as well as the distinctive male genitalia. Habitus photos, illustrations of the genitalia, a distribution map, notes on habitat, and comparative diagnoses are provided.

10aaquatic insects10aGuiana Shield10aNeotropical region10aSouth America10aTable Mountain10awater beetle1 aMaier, C.A.1 aShort, A.E.Z. uhttps://elmidae.myspecies.info/node/14601226nas a2200205 4500008004100000245015200041210006900193300001000262490000800272520055200280653002000832653002100852653001800873653002300891653001800914653001000932100001600942700001900958856004300977 2011 eng d00aHypsilara royi gen. n. and sp. n. (Coleoptera, Elmidae, Larainae) from Southern Venezuela, with a revised key to Larainae of the Western Hemisphere0 aHypsilara royi gen n and sp n Coleoptera Elmidae Larainae from S a25-360 v1163 a

Here we describe a new genus, for a new species of riffle beetle, Hypsilara royi gen. n. and sp. n., from the tepui Cerro de la Neblina in southern Venezuela. This new genus can be distinguished from all other laraine genera by its small size (ca. 4.5 mm) and the presence of a shallow, wide, V-shaped groove across the apical third of the pronotum. An updated key to the genera of Western Hemisphere Larainae is provided, along with information on habitat and collection methods for this taxon.

10aaquatic insects10aCerro de Neblina10aGuiana Shield10aNeotropical region10ariffle beetle10atepui1 aMaier, C.A.1 aSpangler, P.J. uhttps://elmidae.myspecies.info/node/8501376nas a2200169 4500008004100000245010800041210006900149300001000218490000900228520083000237653001901067653002001086653002301106653001801129100001601147856004301163 2012 eng d00aElachistelmis gen. n. (Coleoptera: Elmidae: Elminae) from Suriname, with description of two new species0 aElachistelmis gen n Coleoptera Elmidae Elminae from Suriname wit a61-690 v35003 a

Elachistelmis gen. n. is described for two new species of riffle beetle, E. tetramera sp. n., and E. sipaliwiniensis sp. n. from southwestern Suriname. This new genus can be distinguished from all other elmid genera by its small size (ca. 1.0–1.2 mm), pronotum with sublateral carinae and lacking depressions, and the presence of a narrow band of plastron setae on the lateral edge of each elytron. Elachistelmis tetramera sp. n. is among the smallest recorded Elmini and possesses many characters associated with miniaturization, such as reduced tarsal formula and feathery wings with reduced venation. A key to species, scanning electron micrographs, and illustrations of the male genitalia are provided.

10aAquatic insect10aminiaturization10aNeotropical region10ariffle beetle1 aMaier, C.A. uhttps://elmidae.myspecies.info/node/8401686nas a2200241 4500008004100000022003500041024008500076245017600161210006900337300001200406490000900418520082100427653001201248653001301260653001001273653001801283653001401301100001701315700001901332700001601351700003501367856004201402 2016 eng d aISSN 1175-5326 (print edition) ahttp://zoobank.org/urn:lsid:zoobank.org:pub:60EBECDF-BAE2-47E9-8E27-9BFD04314F5C00aPhanoceroides Hinton, 1939: description of new species, morphology of larvae, and revised taxonomic position of the genus (Coleoptera: Elmidae) based on molecular evidence0 aPhanoceroides Hinton 1939 description of new species morphology  a277-2880 v41173 a

The monotypic genus Phanoceroides was initially classified within the subfamily Elminae, based solely on the distribution and type of pubescence on the body surface. Although a close relationship with Larainae was suggested (Hinton 1939, Maier 2013), its taxonomic position and phylogeny remained unresolved. Based on newly collected material, we describe here P. fernandesi sp. n. and document morphological characters and differences of adults and larvae of P. aquaticus Hinton, 1939 and P. fernandesi sp. n. To clarify the taxonomic position of Phanoceroides within Elmidae, we used molecular data (cox1 and mtDNA). The results support position of the genus within the subfamily Larainae with Hypsilara Maier & Spangler, 2011 as a close relative.

10aElmidae10aLarainae10amtDNA10aPhanoceroides10aVenezuela1 aČiampor, F.1 aLaššová, K.1 aMaier, C.A.1 aČiamporová-Zaťovičová, Z. uhttps://elmidae.myspecies.info/node/8