Crapemyrtle bark scale (Acanthococcus lagerstroemiae (Kuwana, 1907)) is an adventive pest that feeds on crapemyrtle (Lagerstroemia Linnaeus). First detected in North America in Dallas County, Texas in 2004, crapemyrtle bark scale has since spread patchily across the southeastern United States. The specimens reported here are the first recorded in Pennsylvania and represent the most northern occurrence of the species.