How did insect wings originate? This is a question that represents an unsolved mystery of insect evolution. Despite many years of research, it is still not entirely clear from which body structure ...
BOT copy 39088019581321 purchased with funds from the S. Dillon Ripley Endowment. Contents The wingless insects : springtails, diplurans and bristletails -- Mayflies, dragonflies and damselflies : the ...