What red pigments are made from insects? What scale insects live on cacti? What pigments overlap with #1 and #2? Is #3 unstable in oil paint?
Cactus
Family of mostly succulent plants, adapted to dry environments
Would an oil painter avoid reds from scale insects that live on a cactus?
Carmine is the product of an insect that lives on some cacti Carmine is not stable in oil paints and its usage has been discontinued Carmine is red