Subfamily Aphidinae
Genus Aphis [Aphidini]
Very small to rather large aphids. Adult viviparae may be winged or wingless. The body is broadly oval in shape, never very elongate. The dorsal cuticle is membranous with a variable amount of dark sclerotic markings. Siphunculi are more or less cylindrical or tapering, never distinctly swollen. The cauda is usually more or less elongate. The legs are variably pigmented, but rarely entirely dark.
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