We present new spectroscopic observations of a sample of globular clusters ( GCs ) in the Virgo Cluster elliptical NGC 4365 .
The great majority of the objects analysed here , overlap on purpose with objects presented in two previous studies that came to contradictory conclusions .
We measure Lick indices for the GCs and infer ages , abundances and \alpha -enhancement values by comparing to population synthesis models .
Our results do not support the existence of numerous intermediate-age GCs in this galaxy as suggested by some of the past studies .
Instead , we find ages , consistent with the range \sim 8 - 14 Gyrs ( model dependent and with large uncertainties ) .
We also find that the newly observed GCs have [ Fe/H ] \sim -1.3 to 0.3 dex and the majority are consistent with [ \alpha /Fe ] \sim 0.3 dex , independent of metallicity .
By comparing the metal sensitive index [ MgFe ] with optical colours , we find that our data is consistent with 14 Gyr models .
However for optical/near-infrared colours we find that the same models would have to be redder by \sim 0.2 mag in order to be consistent with our data .
This offset is not found to be consistent with an age effect as it is even larger for younger models .