Eupithecia swettii

{{Short description|Species of moth}}

{{Speciesbox

| image = Eupithecia swettii.jpg

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| genus = Eupithecia

| species = swettii

| authority = Grossbeck, 1907{{cite web |last=Yu |first=Dicky Sick Ki |url=http://www.taxapad.com/local.php?taxonidLC=82857708 |title=Eupithecia swettii Grossbeck 1907 |website=Home of Ichneumonoidea |publisher=Taxapad |archive-url=https://web.archive.org/web/20160324224625/http://www.taxapad.com/local.php?taxonidLC=82857708 |archive-date=March 24, 2016}}{{cite web |url=http://mothphotographersgroup.msstate.edu/species.php?hodges=7530 |title=910371.00 – 7530 – Eupithecia swettii – Grossbeck, 1907 |website=North American Moth Photographers Group |publisher=Mississippi State University |accessdate=April 29, 2019}}

| synonyms = *Eupithecia ritaria Cassino, 1927

}}

Eupithecia swettii is a moth in the family Geometridae first described by John Arthur Grossbeck in 1907. It is found in eastern North America, from Quebec and Massachusetts to North Carolina in the south-east and through Missouri and Kansas to Mississippi. It is also found in eastern Texas.{{cite journal |last=Rindge |first=Frederick H. |date=February 19, 1985 |url=http://digitallibrary.amnh.org/bitstream/handle/2246/5276//v2/dspace/ingest/pdfSource/nov/N2809.pdf?sequence=1&isAllowed=y |title=The Eupithecia (Lepidoptera, Geometridae) of Mississippi and Louisiana |journal=American Museum Novitates |issue=2809 |pages=1–18}}

The length of the forewings is 8.5–10.5 mm. Adults are on wing from January to April in the south and to May and even July in the north.