anisopterous
/ænɪˈsɒptərəs/Definitions
1. adjective
Having wings of different sizes, especially in the order Diptera, where one wing is larger than the other.
“The insect’s anisopterous wings made it a difficult subject for the artist to draw.”
2. noun
An insect with wings of different sizes.
“The entomologist studied the anisopterous specimens under a microscope.”