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2. Aquatic macroinvertebrates - Wikipedia

   en.wikipedia.org/wiki/Aquatic_macroinvertebrates

   Aquatic macroinvertebrates are insects in their nymph and larval stages, snails, worms, crayfish, and clams that spend at least part of their lives in water. These insects play a large role in freshwater ecosystems by recycling nutrients as well as providing food to higher trophic levels. Trichoptera larva

3. Mandibulata - Wikipedia

   en.wikipedia.org/wiki/Mandibulata

   The mandibulates are divided between the extant groups Myriapoda (millipedes & centipedes, among others) and Pancrustacea (including insects and crustaceans, among others). Molecular phylogenetic studies suggest that the living arthropods are related as shown in the cladogram below.

4. Marine invertebrates - Wikipedia

   en.wikipedia.org/wiki/Marine_invertebrates

   Arthropods also have a wide range of chemical and mechanical sensors, mostly based on modifications of the many setae (bristles) that project through their cuticles. Arthropods' methods of reproduction and development are diverse; all terrestrial species use internal fertilization , but this is often by indirect transfer of the sperm via an ...

5. Entognatha - Wikipedia

   en.wikipedia.org/wiki/Entognatha

   These minute arthropods are apterous, unlike some orders of insects that have lost their wings secondarily (but are derived from winged ancestors). Their mouthparts are enclosed within a pouch in the head capsule, called the gnathal pouch, so only the tips of the mandibles and maxillae are exposed beyond the cavity. [1]

6. Hydrachnidia - Wikipedia

   en.wikipedia.org/wiki/Hydrachnidia

   They prey on other water mites, small crustaceans (e.g. cladocerans, ostracods and copepods), the eggs, larvae and pupae of aquatic insects, and non-arthropod invertebrates such as rotifers, nematodes, and oligochaetes. The egg-eating water mites often prey on the eggs of the same insects they parasitise as larvae.

7. Aquatic insect - Wikipedia

   en.wikipedia.org/wiki/Aquatic_insect

   Aquatic insects or water insects live some portion of their life cycle in the water. They feed in the same ways as other insects . Some diving insects, such as predatory diving beetles , can hunt for food underwater where land-living insects cannot compete .

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9. Nymph (biology) - Wikipedia

   en.wikipedia.org/wiki/Nymph_(biology)

   Nymphs of aquatic insects, as in the Odonata, Ephemeroptera, and Plecoptera orders, are also called naiads, an Ancient Greek name for mythological water nymphs. Some entomologists have said that the terms larva, nymph and naiad [ 4 ] should be used according to the developmental mode classification (hemimetabolous, paurometabolous or ...