примеры использования
The natural diet of loch trout is more varied than most care to admit and be prepared for trout taking midge, stonefly , sedge, beetles, nymphs, olives and mayfly.
Young Atlantic salmon in streams eat mainly the larvae of aquatic insects such as blackflies, stoneflies , caddisflies, and chironomids.
The Permian saw the appearance of stoneflies , true bugs, beetles, and caddisflies, among other groups.
Their findings can then be presented to government scientists for further investigation, or passed to national recording schemes for the three main groups of river insects: caddisflies, mayflies, and stoneflies .
On many of the rocks were the empty cases of early season stoneflies that the river seems to support in large numbers.
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