Sympistis apep

{{Short description|Species of moth}}

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Sympistis apep is a moth of the family Noctuidae first described by James T. Troubridge in 2008.{{cite web |editor-last=Savela |editor-first=Markku |date=June 19, 2020 |url=https://ftp.funet.fi/pub/sci/bio/life/insecta/lepidoptera/ditrysia/noctuoidea/noctuidae/oncocnemidinae/sympistis/#apep |title=Sympistis apep Troubridge, 2008 |website=Lepidoptera and Some Other Life Forms |access-date=January 9, 2021}} It is found in western North America from Washington to Oregon at low elevations (up to 2600 feet).{{cite web |url=http://mothphotographersgroup.msstate.edu/species.php?hodges=10164.1 |title=931806.00 – 10164.1 – Sympistis apep Troubridge, 2008 |website=North American Moth Photographers Group |publisher=Mississippi State University |access-date=January 9, 2021}}

Its habitat consists of thin, dry and rocky soil.

The wingspan is 18–25 mm. Adults are on wing in late September.