Antlia is a fairly obscure late-Winter early-Spring constellation far to the south of Regulus (alpha Leonis).
Not easily located, the best approach is to first familiarise yourself with Hydra. Having done so, now locate mu Hydrae with the naked eye and drop due south about three binocular fields until you encounter the only bright star in this region. This is alpha Antliae.
The constellaion contains very little of interest for binoculars, apart from the optical binary zeta1-zeta2, which is three binocular fields west of alpha Antliae.
Click on alpha Antliae to verify that you have indeed found the constellation's brightest star. Then go off and visit the two zetas.