{{short description|Species of dragonfly}} {{Speciesbox |name=''Hemicordulia australiae'' |image=Sydney dragonflies mating Victoria Park pond 4.jpg |image_caption= |status=LC |status_system=IUCN3.1 |status_ref=<ref name="iucn status 20 November 2021" /> |taxon=Hemicordulia australiae |authority=(Rambur, 1842)<ref name="Rambur 1842 Gallica" /> |range_map=Hemicordulia australiae distribution map.svg | synonyms = * ''Cordulia australiae'' {{small|Rambur, 1842}} * ''Hemicordulia magica'' {{small|Lieftinck, 1937}} | synonyms_ref = <ref name=WOL/> }}
The '''Australian emerald''' (''Hemicordulia australiae'') is a species of dragonfly in the family Corduliidae.<ref name="AFD" /> It can be found in Australia,<ref name="Victoria Dragonflies" /> Lord Howe Island, Norfolk Island, Lesser Sunda Islands and New Zealand.<ref name="Field Guide" /> It is a small to medium-sized, long-legged dragonfly coloured black-metallic and yellow.<ref name="Field Guide"/> In both males and females the inboard edge of the hindwing is rounded.<ref name="Watson book 1991" />
The ''Australian emerald'' appears similar to the tau emerald (''Hemicordulia tau'').
==Etymology== The genus name ''Hemicordulia'' is derived from the Greek ἡμι- (''hēmi'', "half"), combined with ''Cordulia'', a genus name derived from the Greek κορδύλη (''kordylē'', "club" or "cudgel"). The name refers to the close relationship of the genus to ''Cordulia''.<ref name="Endersby & Fliedner 2015"/>
The species name ''australiae'' is Latin for "of Australia", referring to the origin of the original specimens.<ref name="Rambur 1842 Gallica"/><ref name="Endersby & Fliedner 2015"/>
==Gallery== <gallery widths="200" > Australian Emerald Dragonfly - Dec10.jpg|In flight Female Australian Emerald lateral (13162706274).jpg|Female Female Australian Emerald (13162517413).jpg|Female Female Australian Emerald detail (13162721094).jpg|Female detail Australian Emerald, Hemicordulia australiae1.jpg|Male Hemicordulia australiae female wings (35059803555).jpg|Female wings Hemicordulia australiae male wings (34895532962).jpg|Male wings </gallery>
==References== <references> <ref name="iucn status 20 November 2021">{{cite iucn |author=Rowe, R. |author2=Marinov, M. |date=2020 |title=''Hemicordulia australiae'' |volume=2020 |article-number=e.T163871A83376811 |doi=10.2305/IUCN.UK.2020-1.RLTS.T163871A83376811.en |access-date=20 November 2021}}</ref>
<ref name="Rambur 1842 Gallica">{{Cite book|url=http://gallica.bnf.fr/ark:/12148/bpt6k61025298/f168.image|title=Histoire naturelle des insectes. Névroptères|language=fr|last=Rambur|first=Jules|publisher=Librairie Encyclopédique de Roret|year=1842|location=Paris|pages=534 [146]|via=Gallica}}</ref>
<ref name="AFD">{{Cite web|url=https://biodiversity.org.au/afd/taxa/Hemicordulia_australiae|title=Species ''Hemicordulia australiae'' (Rambur, 1842)|date=2012|website=Australian Faunal Directory|publisher=Australian Biological Resources Study|access-date=28 January 2017}}</ref>
<ref name="Victoria Dragonflies">{{cite web |url=http://www.ecology-solutions.com.au/vic_dragonflies/H_australiae.htm |title=Victorian Dragonflies |website=www.ecology-solutions.com.au |access-date=6 June 2022 |archive-url=https://web.archive.org/web/20050713050628/http://www.ecology-solutions.com.au/vic_dragonflies/H_australiae.htm |archive-date=13 July 2005 }}</ref>
<ref name="Field Guide">{{Cite book|title=The Complete Field Guide to Dragonflies of Australia|last1=Theischinger|first1=Günther|last2=Hawking|first2=John|publisher=CSIRO Publishing|year=2006|isbn=978-0-64309-073-6|location=Collingwood, Victoria, Australia|page=244}}</ref>
<ref name="Watson book 1991">{{Cite book|title=The Australian Dragonflies: A Guide to the Identification, Distributions and Habitats of Australian Odonata|last1=Watson|first1=J.A.L.|last2=Theischinger|first2=G.|last3=Abbey|first3=H.M.|publisher=CSIRO|year=1991|isbn=0-643-05136-8|location=Melbourne}}</ref>
<ref name=WOL>{{World Odonata List |access-date=13 April 2026}}</ref>
<ref name="Endersby & Fliedner 2015">{{cite book |last1=Endersby |first1=Ian |last2=Fliedner |first2=Heinrich |title=The Naming of Australia's Dragonflies |date=2015 |publisher=Busybird Publishing |location=Eltham, Victoria, Australia |isbn=9781925260625 |url=https://www.researchgate.net/publication/283318421_The_Naming_of_Australia's_Dragonflies}}</ref> </references>
{{commons category|Hemicordulia australiae}} {{wikispecies|Hemicordulia australiae}} {{Taxonbar|from=Q1979043}}
Category:Corduliidae Category:Odonata of Australia Category:Taxa named by Jules Pierre Rambur Category:Insects described in 1842