Hydriomena divisaria, the black-dashed hydriomena moth, is a moth in the family Geometridae. It is found in North America, where it has been recorded from southern Canada and the northern United States, south to Georgia in the east.

The wingspan is 24–30 mm. Adults have been recorded on wing mainly in April to July.

The larvae feed on Abies balsamea, Pinus and Picea species.

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