The wingspan is 17–25 mm.[3] Adults are mostly on wing in summer, but have been recorded from April to November.[4]
The larvae feed on Arbutus and Gaylussacia species, and possibly also Thuja and Pseudotsuga species. The larvae are variable in colour, ranging from green to rosy pink and reddish pink.[5]
^"Eupithecia graefii [Geometridae]". Caterpillars of Pacific Northwest Forests and Woodlands. United States Geological Survey. Archived from the original March 16, 2015. This article incorporates text from this source, which is in the public domain.