Ditrigona triangularia

{{short description|Species of hook-tip moth}}

{{Speciesbox

| image = Ditrigona triangularia.jpg

| image_caption =

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| taxon = Ditrigona triangularia

| authority = (Moore, [1868]){{cite web |author1=顏聖紘 |author2=施禮正 |name-list-style=amp |date=March 4, 2013 |url=https://taibnet.sinica.edu.tw/chi/taibnet_species_detail.php?name_code=344431 |title=Ditrigona triangularia (Moore, 1868) 燕鉤蛾 |website=Catalogue of Life in Taiwan |language=zh |publisher=Biodiversity Research Center, Academia Sinica |access-date=January 13, 2021}}

| synonyms =

• Ourapteryx triangularia Moore, [1868]
• Urapteryx triangularia

}}

Ditrigona triangularia is a moth in the family Drepanidae first described by Frederic Moore in 1868. It is found in the north-eastern Himalayas, China, Taiwan{{cite web |editor-last=Savela |editor-first=Markku |url=http://www.nic.funet.fi/pub/sci/bio/life/insecta/lepidoptera/ditrysia/drepanoidea/drepanidae/drepaninae/ditrigona/#triangularia |title=Ditrigona triangularia (Moore, [1868]) |website=Lepidoptera and Some Other Life Forms |accessdate=August 7, 2018}} and Thailand.{{cite web |last=Lin |first=Felix |url=http://www.geocities.ws/drepanidae/drep.10.html |title=Ditrigona triangularia (Moore) |website=Oriental Butterflies & Moths |accessdate=August 7, 2018}}

The wingspan is 27–34 mm. Adults are on wing in March.