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We report the discovery of a new low-redshift galaxy-scale gravitationallens, identified from a systematic search of publicly available MUSEobservations. The lens galaxy, 2MASXJ04035024-0239275, is a giant elliptical at$z$ = 0.06604 with a velocity dispersion of $\sigma$ = 314 km s$^{-1}$. Thelensed source has a redshift of 0.19165 and forms a pair of bright imageseither side of the lens centre. The Einstein radius is 1.5 arcsec, projectingto 1.8 kpc, which is just one quarter of the galaxy effective radius. Aftercorrecting for an estimated 19 per cent dark matter contribution, we find thatthe stellar mass-to-light ratio from lensing is consistent with that expectedfor a Milky Way initial mass function (IMF). Combining the new system withthree previously-studied low-redshift lenses of similar $\sigma$, the derivedmean mass excess factor (relative to a Kroupa IMF) is $\langle\alpha\rangle$ =1.09$\pm$0.08. With all four systems, the intrinsic scatter in $\alpha$ formassive elliptical galaxies can be limited to $<0.32$, at 90 per centconfidence.

A new strong-lensing galaxy at z=0.066: Another elliptical galaxy with a lightweight IMF