Are these fungi "porcini"?
In italian, yes! (meaning "little pigs"). But we have many other regional names (for example, Brisa, Bronzino, Ciupadello, Caponero, Moccicone, Mocciardone, Biodo, etc...)
For example, the B.aereus is known in France as
Tête de nègre for the resemblance of the color to a black man's head.
Here's another one, same Boletus family, but not edible: it's called
Strobilomyces strobilaceus aka
Old Man of the Woods. Has the looks of a furry tortoise (imaginary animal...)
Ciao from Massimo