Question

Consider the following four statements (i-iv) and select the option which includes all the correct ones only?
(i) Forewings of cockroach are known as tegmena or elytra.
(ii) Hindwings of cockroach are transparent and membranous which are helpful in flight.
(iii) Forewings are not transparent and used in covering the body during resting stage.
(iv) Hindwings are long, lethargy and narrow which are helpful in covering of body.

• A. Statements (i), (ii) and (iii)
• B. Statements (ii) and (iv)
• C. Statements (ii), (iii) and (iv)
• D. Statements (i), (ii), (iii) and (iv)

Answer 1

Answer: (A)

Statements (i), (ii) and (iii)

Two pairs of wings are present, of which one pair is attached to the mesothoracic and the other pair to the metathoracic segments. Both pairs of the wings together cover the entire body segments starting from mesothorax. The fore wings are mesothoracic and are called wing covers or tegmina or elytra. They cover the hindwings and are protective in function. These are dark stiff opaque and leathery. The hind wings are large, thin, membranous and transparent. They are kept folded below the tegmina and are used for flying.

So, the correct answer is 'Statements (i), (ii) and (iii)'