We present integral field spectroscopy of the LBV candidate stars B 416 and v 532 in the local group galaxy M 33 .
B 416 is surrounded by an elongated ring–like nebula , which has a projected radius of 20 \times 30 pc .
From the datacube we create ionization and radial velocity maps of the nebula .
The excitation of the gas decreases towards the outer part of the ring , while the inner part of the nebula is filled with a more excited gas .
In the EW direction the ring is seen to expand with a maximum projected velocity amplitude of about 40 km/s .
The eastern part approaches the observer .
We estimate the nebula dynamical lifetime \sim 8 \cdot 10 ^ { 5 } years .
It could be a residual MS bubble , which indicates a main–sequence or pre–LBV status of the star .
We classify B 416 as an “ iron star ” or B [ e ] –supergiant .
In v 532 an elongated nebula has been marginally detected .
The total projected size of the nebula along the main axis is 30 pc , and the total radial velocity gradient is 44 \pm 11 km/s .
v 532 exhibits both strong photometric and spectral variability .
At the time of our observations it was in an intermediate brightness state with a rich nitrogen spectrum .
We classify v 532 as an LBV , showing LBV \leftrightarrow Ofpe/WN transitions .
We stress the importance of integral field spectroscopy as the optimal technique for studying nebulae and the evolution of LBV–like stars in nearby galaxies .