{{Short description|Genus of dragonflies}} {{Automatic taxobox | image = Tau Emerald inflight02.jpg | image_caption = ''Hemicordulia tau'' | taxon = Hemicordulia | authority = Selys, 1870<ref name="Selys 1870"/> }} [[File:Sydney dragonflies mating Victoria Park pond 1.jpg|thumb|right|''Hemicordulia australiae'' mating]] [[File:Australian Emerald Dragonfly03 - Dec10.jpg|thumb|right|Australian Emerald in midflight]]
'''''Hemicordulia''''' is a genus of dragonfly in family Corduliidae.<ref name="AFD Hemicordulia"/><ref name="WOL"/> It occurs in Africa, southern Asia, Australasia and Pacific Islands such as the Bonin Islands, Fiji and French Polynesia.<ref name="oz"/><ref name="Marinov"/> Species of ''Hemicordulia'' are small to medium-sized dragonflies, coloured black or metallic, with yellow.<ref name="oz"/>
Following current research, ''Hemicordulia'' now includes species that had until recently been included in the genus ''Procordulia''.<ref name="Goodman et al 2025"/>
==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="Selys 1870"/><ref name="Endersby & Fliedner 2015"/>
==Species== The genus ''Hemicordulia'' contains the following species:<ref name="WOL"/> {{Columns-list|colwidth=30em| * ''Hemicordulia affinis'' {{small|(Selys, 1871)}} – western swamp emerald * ''Hemicordulia africana'' {{small|Dijkstra, 2007}} – African emerald<ref name="IUCN africana"/> * ''Hemicordulia apoensis'' {{small|Asahina, 1980}} * ''Hemicordulia armstrongi'' {{small|Rowe, 2019}} * ''Hemicordulia artemis'' {{small|(Lieftinck, 1930)}} * ''Hemicordulia asahinai'' {{small|(Karube, 1997)}} * ''Hemicordulia asiatica'' {{small|Selys, 1878}} * ''Hemicordulia assimilis'' {{small|Hagen in Selys, 1871}} * ''Hemicordulia astridae'' {{small|(Lieftinck, 1935)}} * ''Hemicordulia atrovirens'' {{small|Dijkstra, 2007}} * ''Hemicordulia australiae'' {{small|(Rambur, 1842)}} – Australian emerald<ref name="oz"/> * ''Hemicordulia chrysochlora'' {{small|Lieftinck, 1953}} * ''Hemicordulia continentalis'' {{small|Martin, 1906}} – fat-bellied emerald<ref name="oz"/><ref name="IUCN continentalis"/> * ''Hemicordulia cupricolor'' {{small|Fraser, 1927}} * ''Hemicordulia cyclopica'' {{small|Lieftinck, 1942}} * ''Hemicordulia edai'' {{small|Karube & Katatani, 2012}} * ''Hemicordulia eduardi'' {{small|Lieftinck, 1953}} * ''Hemicordulia ericetorum'' {{small|Lieftinck, 1942}} * ''Hemicordulia erico'' {{small|Asahina, 1940}} * ''Hemicordulia fidelis'' {{small|McLachlan, 1886}} * ''Hemicordulia flava'' {{small|Theischinger & Watson, 1991}} – desert emerald<ref name="oz"/> * ''Hemicordulia fusiformis'' {{small|(Lieftinck, 1977)}} * ''Hemicordulia grayi'' {{small|(Selys, 1871)}} – yellow spotted dragonfly * ''Hemicordulia haluco'' {{small|Asahina, 1940}} * ''Hemicordulia hilaris'' {{small|Lieftinck, 1975}} * ''Hemicordulia hilbrandi'' {{small|Lieftinck, 1942}} * ''Hemicordulia intermedia'' {{small|Selys, 1871}} – yellow-spotted emerald<ref name="oz"/><ref name="IUCN intermedia"/> * ''Hemicordulia irregularis'' {{small|(Martin, 1907)}} * ''Hemicordulia jacksoniensis'' {{small|(Rambur, 1842)}} – eastern swamp emerald * ''Hemicordulia kalliste'' {{small|Theischinger & Watson, 1991}} – slender emerald<ref name="oz"/> * ''Hemicordulia karnyi'' {{small|(Fraser, 1926)}} * ''Hemicordulia koomina'' {{small|Watson, 1969}} – Pilbara emerald<ref name="oz"/><ref name="IUCN koomina"/> * ''Hemicordulia leopoldi'' {{small|(Fraser, 1932)}} * ''Hemicordulia lompobatang'' {{small|(van Tol, 1997)}} * ''Hemicordulia lulico'' {{small|Asahina, 1940}} * ''Hemicordulia mindana'' {{small|Needham & Gyger, 1937}} * ''Hemicordulia moroensis'' {{small|(Lieftinck, 1977)}} * ''Hemicordulia mumfordi'' {{small|Needham, 1933}} * ''Hemicordulia novaehollandiae'' {{small|(Selys, 1871)}} * ''Hemicordulia oceanica'' {{small|Selys, 1871}} * ''Hemicordulia ogasawarensis'' {{small|Oguma, 1913}} * ''Hemicordulia okinawensis'' {{small|Asahina, 1947}} * ''Hemicordulia olympica'' {{small|Lieftinck, 1942}} * ''Hemicordulia pacifica'' {{small|Fraser, 1925}} * ''Hemicordulia papandayanensis'' {{small|(van Tol, 1997)}} * ''Hemicordulia rantemario'' {{small|(van Tol, 1997)}} * ''Hemicordulia sambawana'' {{small|(Förster, 1899)}} * ''Hemicordulia silvarum'' {{small|Ris, 1913}} * ''Hemicordulia similis'' {{small|(Rambur, 1842)}} * ''Hemicordulia smithii'' {{small|(White in White & Gardiner, 1846)}} – ranger dragonfly * ''Hemicordulia superba'' {{small|Tillyard, 1911}} – superb emerald<ref name="oz"/> * ''Hemicordulia sylvia'' {{small|(Lieftinck, 1935)}} * ''Hemicordulia tau'' {{small|Selys, 1871}} – tau emerald<ref name="oz"/> * ''Hemicordulia tenera'' {{small|Lieftinck, 1930}} * ''Hemicordulia teramotoi'' {{small|Yokoi, 2015}} * ''Hemicordulia toxopei'' {{small|Lieftinck, 1926}} * ''Hemicordulia tuiwawai'' {{small|Marinov, 2019}} * ''Hemicordulia valevahalo'' {{small|(Marinov, 2016)}} * ''Hemicordulia virens'' {{small|(Rambur, 1842)}} }}
==References== <references> <ref name="WOL">{{World Odonata List}}</ref>
<ref name="Selys 1870">{{Cite journal|last=Selys-Longchamps|first=Edmond|year=1870|title=Synopsis des Cordulines|language=French|url=https://www.biodiversitylibrary.org/page/12280796|journal=Comptes-rendus des séances de la Société entomologique de Belgique|volume=14|page=v|via=Biodiversity Heritage Library}}</ref>
<ref name="AFD Hemicordulia">{{Cite web|url=https://biodiversity.org.au/afd/taxa/Hemicordulia|title=Genus ''Hemicordulia'' Selys, 1870|date=2012|website=Australian Faunal Directory|publisher=Australian Biological Resources Study|access-date=27 February 2017}}</ref>
<ref name="oz">{{cite book|title=The Complete Field Guide to Dragonflies of Australia|year=2006|publisher=CSIRO Publishing|isbn=0-643-09073-8|author1=Theischinger, G. |author2=Hawking, J. }}</ref>
<ref name="Marinov">{{Cite Q|Q58623385}}</ref>
<ref name="Goodman et al 2025">{{cite journal | last1 = Goodman | first1 = Aaron | last2 = Abbott | first2 = John C. | last3 = Bybee | first3 = Seth | last4 = Ehlert | first4 = Juliana | last5 = Frandsen | first5 = Paul B. | last6 = Guralnick | first6 = Rob | last7 = Kalkman | first7 = Vincent J. | last8 = Newton | first8 = Lacie | last9 = Parise Pinto | first9 = Ângelo | last10 = Ware | first10 = Jessica L. | title = Systematic and taxonomic revision of emerald and tigertail dragonflies (Anisoptera: Synthemistidae and Corduliidae) | journal = Systematic Entomology | date = 2025-10-09 | editor = Christopher Owen | doi = 10.1111/syen.70000}}</ref>
<ref name="IUCN africana">{{cite iucn |author=Clausnitzer, V. |author2=Suhling, F. |date=2016 |title=''Hemicordulia africana'' |volume=2016 |article-number=e.T168007A85584784 |doi=10.2305/IUCN.UK.2016-3.RLTS.T168007A85584784.en |access-date=12 November 2021}}</ref>
<ref name="IUCN continentalis">{{Cite iucn | author = Hawking, J. | title = ''Hemicordulia continentalis'' | volume = 2009 | article-number = e.T163550A5614899 | date = 2009 | doi = 10.2305/IUCN.UK.2009-2.RLTS.T163550A5614899.en }}</ref>
<ref name="IUCN intermedia">{{Cite iucn | author = Hawking, J. | title = ''Hemicordulia intermedia'' | volume = 2009 | article-number = e.T163561A5616305 | date = 2009 | doi = 10.2305/IUCN.UK.2009-2.RLTS.T163561A5616305.en }}</ref>
<ref name="IUCN koomina">{{Cite iucn | author = Hawking, J. | title = ''Hemicordulia koomina'' | volume = 2009 | article-number = e.T163549A5614673 | date = 2009 | doi = 10.2305/IUCN.UK.2009-2.RLTS.T163549A5614673.en }}</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}} {{Wikispecies}} {{Taxonbar | from=Q2101541}}
Category:Corduliidae Category:Dragonfly genera Category:Odonata of Africa Category:Odonata of Asia Category:Odonata of Australia Category:Odonata of Oceania Category:Taxa named by Edmond de Sélys Longchamps Category:Insects described in 1870 Category:Taxonomy articles created by Polbot