Variants of a mold are catalogued separately, so each one has its own sets and minifigs. Check these too if something you expect is missing here.

• 30231 Wing Insectoid Small with Arm Hinge and Circuitry Print (Undetermined Orientation) this part is a print of it
• 30231pr0001 Wing Insectoid Small with Arm Hinge and Circuitry Print Right (Print on Top, Tip at Right, Logo at Back Edge) this part is a pair of it