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  • ICAR and TNAU E-Course Summarized

    Summarized Notes
  • Example of an insect order in which nymphs are called naiads:

    Question: Example of an insect order in which nymphs are called naiads:

    Options:

    Thysanura
    Odonata
    Diptera
    Hymenoptera

    ✅ Explanation: The aquatic nymphs of insects in the order Odonata (dragonflies and damselflies) are specifically called naiads. These naiads are predatory and possess unique adaptations for their aquatic lifestyle, such as gills for breathing and specialized mouthparts for capturing prey.

    📌 Other Options Explanations:
    -Thysanura: This order includes silverfish and firebrats, which undergo ametabolous development (no metamorphosis) . Their larvae are often called maggots or wrigglers,
    -Hymenoptera: This order comprises ants, bees, and wasps, which undergo complete metamorphosis.

    -Key point

    • Larval Forms of Insects:

    ✏️Orthoptera & Hemiptera:
    -Larval Form: Nymph

    ✏️Lepidoptera:
    -Larval Form: Caterpillar

    ✏️Coleoptera & Hymenoptera:
    -Larval Form: Grub

    ✏️Diptera:
    -Larval Form: Maggot

    ✏️Odonata:
    -Larval Form: Naiad

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