The leathery forewings of an insect are known as:

✅ Explanation:Tegmina: These are hardened, leathery forewings found in insects like grasshoppers, cockroaches, and earwigs. Their primary function is protection for the delicate hindwings used for flight.

📌📌 Other options Explanation:
-B) Elytra: This term is synonymous with Tegmina and is also used to describe the leathery forewings of beetles.
-C) Hemelytra: This refers specifically to the forewings of true bugs (Hemiptera), which have a distinct structure with a leathery basal half and a membranous apical half.
-D) Haltere: These are not wings, but modified hindwings found in flies and mosquitoes. They are small, club-shaped structures that help with balance and flight control (Diptera).