title: Macrocnemis gracilis, a new genus and species of Idiocnemidinae (Zygoptera: Platycnemididae) from Papua New Guinea.
abstract: A new genus and species belonging to the damselfly subfamily Idiocnemidinae from Papua New Guinea, Macrocnemis gracilis gen. nov. sp. nov. is described and illustrated. It is the largest known member of the Papuan idiocnemidine radiation, and its affinities to existing genera remain unclear. The new taxon is currently known with certainty only from small streams flowing through mid-montane rainforest in the Hindenburg Range of Papua New Guinea's rugged central cordillera.
authors.affiliation: NSW Department of Planning and Environment, Office of Environment and Heritage, PO Box 29, Lidcombe NSW 1825 Australia.; Email: gunther.theischinger@environment.nsw.gov.au.
authors.forename: G
authors.initials: G
authors.lastname: Theischinger
authors.affiliation: Naturalis Biodiversity Center, Terrestrial Zoology Section, P.O. Box 9517, NL-2300 RA Leiden, The Netherlands Zoologisches Forschungsmuseum Alexander Koenig, Arachnida Section, Adenauerallee 160, D-53113 Bonn, Germany.; Email: d.gassmann@zfmk.de.
authors.forename: D
authors.initials: D
authors.lastname: Gassmann
authors.affiliation: Herpetology Department, South Australian Museum, North Terrace, Adelaide, S. A. 5000, Australia and Wildlife Conservation Society, Goroka, Papua New Guinea.; Email: steve.richards@samuseum.sa.gov.au.
authors.forename: S J
authors.initials: SJ
authors.lastname: Richards
mesh_terms: D000825:Animal Structures / Q000033:anatomy & histology / Q000254:growth & development; D000818:Animals; D049628:Body Size; D017753:Ecosystem; D005260:Female; D008297:Male; D063191:Odonata / Q000033:anatomy & histology / Q000145:classification* / Q000254:growth & development; D009929:Organ Size; D010219:Papua New Guinea