ndipterous insectinsects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing
Dipterocecidium: a gall formed by a dipterous insect.
"Explanation of Terms Used in Entomology" by John. B. Smith
Three of our horses have succumbed to the virulence of these pestiferous and dipterous insects.