Tegmina in cockroach, arises from
(1) Prothorax and Mesothorax (2) Prothorax
(3) Mesothorax (4) Meta

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Question

Tegmina in cockroach, arises from
(1) Prothorax and Mesothorax (2) Prothorax
(3) Mesothorax (4) Metathorax

Accepted Answer

Correct Answer: C - MesothoraxExplanation: The thorax of the cockroach has three segments - prothorax, mesothorax, and metathorax. Tegmina are the leathery, sclerotised forewings that arise from the mesothorax (second thoracic segment). They serve as protective covers for the membranous hindwings.Why other options are wrong:- Prothorax: bears the first pair of walking legs only; no wings arise from it- Metathorax: bears the membranous hindwings (used for actual flight) and the third pair of walking legs- Prothorax and Mesothorax: incorrect combinationKey Concept: Cockroach thorax - Prothorax: 1st pair of legs; Mesothorax: 2nd pair of legs + tegmina (forewings); Metathorax: 3rd pair of legs + membranous hindwings. Tegmina are not used for flight but protect hindwings.

Tegmina in cockroach, arises from (1) Prothorax and Mesothorax (2) Prothorax (3) Mesothorax (4) Metathorax

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Tegmina in cockroach, arises from (1) Prothorax and Mesothorax (2) Prothorax (3) Mesothorax (4) Metathorax

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