-For convenience we give simple names to the morphological structures of the nymphs, which then we will refer when we talk about the life aquatic nymphs costruzione.Durante make several suits, as they grow up to leave the bottom of which were holding on for almost a year in order to swim to the surface of 'water to give to the' last time as a nymph, for that insect alato.L 'emergence of mayflies, which implies that mass is defined hatching , is accomplished in several ways. As said, the most common emergency phase sees the nymphs swim to the surface of the 'water and then change, but other species, and instead reach the shore, taking advantage various reeds and plants, coming out 'water, then turn. Still others cling to rocks at the bottom and where change and then exit from 'water winged insects already formed.
STAGE WINGED
Life subimaginale (or dun) is short and usually lasts a few hours. The subimagini and the images are small winged insects. Morphologically, their bodies can be 'divided into six parts: head, thorax, wings, legs, abdomen (uriti) and cerci.
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