Diphlebia lestoides

{{Short description|Species of damselfly}}

{{Speciesbox

| name = Whitewater rockmaster

| image = Whitewater Rockmaster. Diphlebia lestoides - Flickr - gailhampshire.jpg

| image_caption = Male Diphlebia lestoides

| status = LC

| status_system = IUCN3.1

| status_ref = {{cite journal | author = Hawking, J. |title = Diphlebia lestoides | journal = IUCN Red List of Threatened Species | volume= 2009 | page = e.T163576A5618141 | publisher = IUCN | date = 2009 | doi = 10.2305/IUCN.UK.2009-2.RLTS.T163576A5618141.en | doi-access = free }}

| taxon = Diphlebia lestoides

| authority = (Selys, 1853){{Cite journal|last=Selys-Longchamps|first=E.|year=1853|title=Synopsis des Caloptérygines|url=https://www.biodiversitylibrary.org/page/2728780|journal=Bulletins de l'Académie Royale des Sciences, des Lettres et des Beaux-arts de Belgique|language=fr|volume=20 (Annexe)|pages=1–73 [67]|via=Biodiversity Heritage Library}}

| range_map = Diphlebia lestoides distribution map.svg

}}

Diphlebia lestoides is a species of Australian damselfly in the family Lestoideidae,{{Cite web|url=https://biodiversity.org.au/afd/taxa/Diphlebia_lestoides |title=Species Diphlebia lestoides (Selys, 1853)|date=2012|website=Australian Faunal Directory|publisher=Australian Biological Resources Study|access-date=11 April 2017}}

commonly known as a whitewater rockmaster.{{Cite book|title=The Complete Field Guide to Dragonflies of Australia|last=Theischinger|first=Günther|last2=Hawking|first2=John|publisher=CSIRO Publishing|year=2006|isbn=978-0-64309-073-6|location=Collingwood, Victoria, Australia|pages=16}}

It is endemic to south-eastern Australia, where it inhabits streams and rivers.{{cite book|title=Identification Guide to the Australian Odonata|last2=Endersby|first2=Ian|date=2009|publisher=Department of Environment, Climate Change and Water NSW|isbn=978-1-74232-475-3|pages=210|last1=Theischinger|first1=Gunther|url=http://www.environment.nsw.gov.au/resources/publications/09730AustOdonata.pdf}}

Diphlebia lestoides is a large, solid-looking damselfly; the male is a blue to grey colour with black markings, while the female has a more muted colouring. It sits with its white marked wings spread out.{{Cite book|title=The Australian Dragonflies: A Guide to the Identification, Distributions and Habitats of Australian Odonata |last=Watson|first=J.A.L.|last2=Theischinger|first2=G.|last3=Abbey|first3=H.M.|publisher=CSIRO|year=1991|isbn=0643051368|location=Melbourne}}