How are the spongy moth caterpillars typically identified by the markings on their backs?

Answer

Six pairs of red spots followed by twelve pairs of blue spots

The caterpillars are identifiable by hairy bodies displaying rows of red and blue dots along their backs: six pairs of red spots followed by twelve pairs of blue spots.

How are the spongy moth caterpillars typically identified by the markings on their backs?
insectmothlarvafactDefoliator