Had originally mis-ID'ed this as Faint-spotted Angle (Macaria ocellinata), then discovered I hadn't looked far enough afield.
Had originally ID'ed this as Frosted Tan Wave (Scopula cacuminaria), but think Dotted is a better fit.
Idaea philocosma (Meyrick, 1888), to MV light, Jindabyne, NSW, 9/10 January 2014
Idaea inversata (Guenée, 1857), to MV light, Merimbula, NSW, 12/13 January 2014
Based on hind wing being so rounded (as compared with typical I. costaria.