a. and sb. Zool. [f. aphid- stem of mod.L. APHIS + -IAN.]
A. adj. Of or pertaining to aphides.
1843. Owen, Lect. Comp. Anat. Invertebr., 234. Phenomena essentially analogous to those of Aphidian generation.
B. sb. An aphidian insect; one of the aphides.