not sure exactly what you call these, feel free to suggest a better thread title or point me to the thread if it already exists,
It's the fact that they are stockings (not pantyhose) that havea waistband, but cutouts, which make it like an integral garter belt
My wife has a few pairs of these, the packaging calls them "Garter Panty Hose" on one, "Suspender Panty Hose" on two others. The fourth set is more like a Garter attached to thigh highs, not really cut outs like your sample pics. The back of the package says "faux garter belt". (The other three pairs look just like your pics.) Those are also call "Garter Panty Hose"
I agree with you, they aren't panyhose, but that is what they seemed to be called. LOL