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Dragonflies (suborder Anisoptera) are heavy-bodied, strong-flying insects that hold their wings horizontally both in flight and at rest. By contrast, damselflies (suborder Zygoptera) have slender bodies and fly more weakly; most species fold their wings over the abdomen when stationary, and the eyes are well separated on the sides of the head.
The naiads live in the debris of the bottoms of lakes and ponds. They do not actively pursue prey but wait for it to pass by, a strategy which affords them protection from other predators. The naiads emerge from the water to make the transition to adult dragonflies at night. Adults fly from early August through October.
At high angles of attack, the flow separates over the leading edge, but reattaches before reaching the trailing edge. Within this bubble of separated flow is a vortex. Because the angle of attack is so high, a lot of momentum is transferred downward into the flow. These two features create a large amount of lift force as well as some additional ...
The immature meadowhawk dragonflies feed on various organisms that can be found in aquatic environments. Some of their prey items include fly larvae, mosquito larvae, mayfly larvae, shrimp, and small fish. The adult meadowhawks feed on smaller, typically flying insects. This, for example, includes mosquitoes, flies, moths, and mayflies.
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. They also feed on small fish and tadpoles. This adult will eat almost any soft-bodied flying insect, including mosquitoes, flies, butterflies, moths, mayflies, and stoneflies.
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Emperor dragonflies can also be recognised by their flight patterns: they often fly with their abdomen hanging slightly downwards. [ 2 ] [ 8 ] One of the largest species in Europe, the emperor dragonfly is exceeded by magnificent emperor , which occurs only marginally in the east Mediterranean [ 9 ] and in length by females of the golden-ringed ...
Uropetala carovei (New Zealand bush giant dragonfly) is a giant dragonfly of the family Petaluridae, endemic to New Zealand.Its Māori name, kapokapowai (or kapowai) [2] means "water snatcher", alluding to the water dwelling juvenile stage (), which, like all dragonflies, has a long extendable jaw that shoots out to snatch prey.