Aphids in nature are normally either winged or wingless. However, it has been found that there also occur individuals which are intermediate in wing development: that is to say, some individuals have only partly formed wings and therefore are intermediate between the winged and wingless types. The production of large numbers of intermediate-winged aphids can be induced in the laboratory by artificial means such as certain combinations of light and temperature.
Proceedings of the Iowa Academy of Science
© Copyright 1936 by the Iowa Academy of Science, Inc.
Stiles, K. A.
"The Order of Embryonic Determination of Several Organs in Macrosiphum solanifolii,"
Proceedings of the Iowa Academy of Science, 43(1), 393-394.
Available at: https://scholarworks.uni.edu/pias/vol43/iss1/143