Following is an example for secondarily wingless insect

✅ Explanation: Secondarily wingless insects are those whose ancestors had wings, but they have lost them through evolutionary adaptation. Head lice (Pediculus humanus capitis) are wingless parasites that live on the human scalp. Their ancestors likely had wings, but they lost them as they adapted to their parasitic lifestyle.

📌 Other Options Explanations:
-Blister beetle: These beetles have wings, although some species may have reduced wings
-Collembolan (springtails): These are primitive wingless insects that never had wings in their evolutionary history (primarily wingless)
-Silverfish: These are also primarily wingless insects that never evolved wings.