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    Question

    Proboscis in the mouthparts of the butterfly is formed

    from ____
    A Labium Correct Answer Incorrect Answer
    B Galea of maxillae Correct Answer Incorrect Answer
    C Maxillary palp Correct Answer Incorrect Answer
    D Galea of mandibles Correct Answer Incorrect Answer
    E None of the above Correct Answer Incorrect Answer

    Solution

    Moths and butterflies consist of elongate sucking tube or proboscis. It is formed by two greatly elongated galeae of maxillae which are zippered together by interlocking spines and hooks. Galeae are grooved on their inner surface and when they are fitting together closely, they form a suctorial food canal through which the nectar is sucked up.

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