Pararchytas decisus

{{short description|Species of fly}}

{{Speciesbox

| genus = Pararchytas

| species = decisus

| authority = (Walker, 1849){{cite book |last1=Walker |first1=F. |title=List of the specimens of dipterous insects in the collection of the British Museum. Part IV.|date=1849 |publisher=British Museum |location=London |pages=[3] + 689–1172 + [2]|url= https://www.biodiversitylibrary.org/item/118982#page/7/mode/1up |access-date=20 October 2022}}

| display_parents = 3

| synonyms = *Tachina decisa Walker, 1849

}}

Pararchytas decisus is a species of bristle fly in the family Tachinidae.{{cite web |last1=O’Hara |first1=James E. |last2=Henderson |first2=Shannon J. |first3=D. Monty |last3=Wood |title=Preliminary Checklist of the Tachinidae (Diptera) of the World|url=http://www.nadsdiptera.org/Tach/WorldTachs/Checklist/Tachchlist_ver2.1.pdf |website=Tachinidae Resources |access-date=14 June 2023 |date=5 March 2020}}