Pachystylum

{{Short description|Genus of flies}}

{{Automatic taxobox

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| taxon = Pachystylum

| authority = Macquart, 1848{{cite journal |last1=Macquart |first1=Pierre-Justin-Marie |title=Diptères exotiques nouveaux ou peu connus. Suite du 2.me supplement. [=Suppl. 3] (2) |journal=Mem. Soc. R. Sci. Agric. Arts, Lille |date=1848 |volume=1847 |issue=2 |pages=161–237, 7 pls}}

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| synonyms = *Chaetomera Brauer & von Berganstamm, 1889{{cite journal |last1=Brauer |first1=F. |last2=Bergenstamm |first2=J.E. von |title=Die Zweiflugler des Kaiserlichen Museums zu Wien. IV. Vorarbeiten zu einer Monographie der Muscaria Schizometopa (exclusive Anthomyidae) |journal=Pars I. Denkschriften der Akademie der Wissenschaften in Wien |date=1889 |volume=56 |issue=1 |pages=69–180, 11 pls|url=https://www.biodiversitylibrary.org/page/7109187#page/115/mode/1up |access-date=8 June 2023}}

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Pachystylum is a genus of flies 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=22 November 2023 |date=5 March 2020}}