[3][4][5] P. indictus is a small to medium-sized beetle, with adults approximately 6–10 mm (0.2–0.4 in) long.

The head shield, or pronotum, is pale yellow with a thick, black, rectangular central mark with red or pink on both sides.

The wing covers, or elytra, are dark with wide, well-defined, light-colored margins.

[6] The specific epithet, "indictus", is Latin meaning "not said" or "unspoken", referring to the fact that this species does not flash as an adult.

[2] P. indictus is found in eastern North America, most commonly in the Great Lakes region of the United States and Canada.