They do not appear to be held straight up as in butterflies or mayflies.
Mayflies are famed for their short adult life.
Consequently, dragonflies, mayflies, caddisflies and other water-seeking species actually prefer to mate, settle, swarm and oviposit upon these surfaces than available water bodies.
Mayflies are morphologically and physiologically more basal, but the derived characteristics of dragonflies could have evolved independently in their own direction for a long time.
Biotic index surveys report mayfly and stonefly nymphs, caddis fly larvae, dragonfly and damselfly nymphs and crayfish.
The shadow darner naiad feeds on a wide variety of aquatic insects, such as mosquito larvae, other aquatic fly larvae, mayfly larvae, and freshwater shrimp.
The finfoot feeds on aquatic invertebrates, including both adults and larval mayflies, dragonflies, crustaceans, also snails, fish and amphibians.
Gambusia typically eat zooplankton, beetles, mayflies, caddis flies, mites and other invertebrates; mosquito larvae make up only a small portion of their diet.
