The darter feeds on invertebrates which include river snails, hydropsychid caddisfly larvae, midge larvae, and small mayfly nymphs such as baetids.
en.wikipedia.org Invertebrates including aquatic snails, chironomids, and mayflies are the predominant food sources in the koura diet.
en.wikipedia.org The diet of the banded darter consists of midge, mayfly larva, black flies and trichopeteran larvae.
en.wikipedia.org Diet consists of mayfly nymphs, blackfly, stonefly, beetle, and caddisfly larvae.
en.wikipedia.org The finfoot feeds on aquatic invertebrates, including both adults and larval mayflies, dragonflies, crustaceans, also snails, fish and amphibians.
en.wikipedia.org