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Evolution of the ways the wings at rest to the body to create wings do not fold back (recent Archaeoptera) spread laterally (large bubbles) over the back against one another (damselflies, mayflies) Folding (Neoptera) wings not foldable (e.g., stoneflies) Folding fan-fold (e.g., front wings of wasps) Cross fold (such as the rear wing of the beetle)
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A more detailed analysis of the problem shows that the work done by the wings is converted primarily into kinetic energy of the air that is accelerated by the downward stroke of the wings. The power is the amount of work done in 1 s; in the insect used as an example, makes 110 downward strokes per second.
Young females rarely leave the nest and guard the entrance while the older females work, resulting in unworn wings and mandibles in the younger females. [2] Additionally, X. virginica is the only known species in which one-year-old females cohabit the nest with two-year-old females that do all the labor.
The wings are transparent, often hyaline or evenly colored or with bands. The alula are well developed and in the rest position the wings are kept open and horizontal in a V shape revealing the sides of the abdomen. The abdomen is generally short and wide, subglobose-shaped, cylindrical, or conical, composed of six to eight apparent urites.
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The majority of insects have two pairs of wings. Flies possess only one set of lift-generating wings and one set of halteres. The order name for flies, "Diptera", literally means "two wings", but there is another order of insect which has evolved flight with only two wings: strepsipterans, or stylops; [2] they are the only other organisms that possess two wings and two halteres. [6]
Drone bee. A drone is a male bee. Unlike the female worker bee, a drone has no stinger. He does not gather nectar or pollen and cannot feed without assistance from worker bees. His only role is to mate with a maiden queen in nuptial flight.