  Molecular emission has been detected in several Magellanic Cloud B[e]
supergiants. In this Letter, we report on the detection of CO band head
emission in the B[e] supergiant LHA 115-S 65, and present a K-band
near-infrared spectrum obtained with the Spectrograph for INtegral Field
Observation in the Near-Infrared (SINFONI; R=4500) on the ESO VLT UT4
telescope. The observed molecular band head emission in S 65 is quite
surprising in light of a previous non-detection by McGregor et al. 1989, as
well as a high resolution (R=50000) Gemini/Phoenix spectrum of this star taken
nine months earlier showing no emission. Based on analysis of the optical
spectrum by Kraus et al. 2010, we suspect that the sudden appearance of
molecular emission could be due to density build up in an outflowing viscous
disk, as seen for Be stars. This new discovery, combined with variability in
two other similar evolved massive stars, indicates an evolutionary link between
B[e] supergiants and LBVs.
