Xanthophryne koynayensis

{{Short description|Species of amphibian}}

{{Italic title}}

{{Use dmy dates|date=January 2020}}

{{Use Indian English|date=January 2020}}

{{Speciesbox

| image = Xanthophryne koynayensis, an adult male.jpg

| image_caption = Adult male

| status = EN | status_system = IUCN3.1

| status_ref = {{cite iucn |author=S.D. Biju, Sushil Dutta, Robert Inger |date=2004 |title=Xanthophryne koynayensis |volume=2004 |page=e.T54684A11173845 |doi=10.2305/IUCN.UK.2004.RLTS.T54684A11173845.en |access-date=15 November 2021}}

| taxon = Xanthophryne koynayensis

| authority = (Soman, 1963)

| synonyms = Bufo koynayensis Soman, 1963

Bufo sulphureus Grandison and Daniel, 1964

}}

Xanthophryne koynayensis (common names: Humbali Village toad, chrome-yellow toad, Koyna toad) is a species of toad in the family Bufonidae. It is endemic to the Western Ghats of India where it is known from Koyna (including Koyna Wildlife Sanctuary) in the Maharashtra state.{{cite web |url=http://research.amnh.org/vz/herpetology/amphibia/Amphibia/Anura/Bufonidae/Xanthophryne/Xanthophryne-koynayensis |title=Xanthophryne koynayensis (Soman, 1963) |author=Frost, Darrel R. |year=2014 |work=Amphibian Species of the World: an Online Reference. Version 6.0 |publisher=American Museum of Natural History |access-date=24 July 2014}} Formerly included in the genus Bufo it has been since made the type species for the genus Xanthophryne and is a sister species of Xanthophryne tigerina.{{cite journal |last1=Biju|first1=S.D.|last2=Van Bocxlaer|first2=Ines|last3=Giri|first3=Varad B.|last4=Loader|first4=Simon P.|last5=Bossuyt|first5=Franky |title=Two new endemic genera and a new species of toad (Anura: Bufonidae) from the Western Ghats of India |journal=BMC Research Notes |year=2009 |volume=2 |page=241 |doi=10.1186/1756-0500-2-241|pmid=19968866|pmc=2797014|citeseerx=10.1.1.356.3062 |doi-access=free }}