Aquatic insects or water insects live some portion of their life cycle in the water. They feed in the Insect stages - "Some larvae, nymphs and adult insects that live in freshwater." A UK-based web site with microscopic photos of various insects.
We estimated the lateral dispersal of adult aquatic insects (Plecoptera, Trichoptera, Ephemeroptera) in seven small, upland streams draining.
The distinguishing features described above apply to adult insects. For many aquatic insects, only the immature stages (babies) live in the.
Alternatively, one can collect the terrestrial adult stages of aquatic insects. We captured adult Trichoptera and Ephemeroptera at night at four contaminated sites .