dragonfly characteristics

The greatest cause of decline is forest clearance with the consequent drying up of streams and pools which become clogged with silt. Dragonfly (top) and damselfly (bottom) wing shape and venation These insects characteristically have large rounded heads covered mostly by well-developed, compound eyes, which provide good vision, legs that facilitate catching prey (other insects) in flight, two pairs of long, transparent wings that move independently, and elongated abdomens. [99], Among the classical names of Japan are Akitsukuni (), Akitsushima (), Toyo-akitsushima (). Most people love to have dragonflies in their gardens, if only because dragonflies love to eat mosquitoes. "10 Fascinating Facts About Dragonflies." Dragonfly nymphs may swallow cercariae, or these may tunnel through a nymph's body wall; they then enter the gut and form a cyst or metacercaria, which remains in the nymph for the whole of its development. 8 Things You Never Knew About Dragonflies - Treehugger Called the mask, it is a fusion of the larvas third pair of mouthparts. dragonfly damselfly globe skimmer Exopterygota. [96], Images of dragonflies are common in Art Nouveau, especially in jewellery designs. This style creates more thrust, but less lift than counter-stroking, Synchronised-stroking, with forewings and hindwings beating together, is used when changing direction rapidly, as it maximises thrust. Dragonflies feed on pest insects in rice, acting as a natural pest control. Once hatched, the nymph dragonfly spends its time hunting other aquatic invertebrates. [65] A large prey item is subdued by being bitten on the head and is carried by the legs to a perch. Here, the wings are discarded and the prey usually ingested head first. "[110] The poet Matsuo Bash (16441694) wrote haiku such as "Crimson pepper pod / add two pairs of wings, and look / darting dragonfly", relating the autumn season to the dragonfly. Birds and other predators consume a significant number of young dragonflies in the first few days after their emergence. Young dragonflies, called larvae or sometimes nymphs or naiads, are aquatic and are as dedicated predators under water as the adults are in the air. Dragonfly wing muscles must be warm to function optimally, and so, if cool, the insect often engages in wing-whirring and basking in the sun to generate heat before taking flight. What are the Fastest Animals in the World? Dragonflies have nearly 360-degree vision, with just one blind spot directly behind them.

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