the term for white cockroaches is "molting"
Photo shows that when cockroaches molt they are "white" for a very
short time until their exoskeletons harden.
To grow, the young roaches must molt or shed their skin. Each time
they cast off their old skin, the new one replacing it has slightly
more surface area, providing room for additional tissue to be added
later. The new skin is at first soft, pliable, and colorless white.
It takes several hours to harden into an exoskeleton. During this
time the roach is supported by hydrostatic pressure. This
alternation of an exoskeleton with an hydrostatic skeleton occurs
seven to eight times prior to adulthood, over a period of four to
six months
