Idiodes albistriga is a moth of the family Geometridae. It is found in Madagascar.
This species has a wingspan of . The forewings of this species are dull coppery red, thickly covered with dark flecks, the veins towards hindmargin are clearer red; costa with some bright pale dots. The hindwings are paler, more pinkish, except towards hindmargin, with a cloudy cellspot, a faintly curved postmedian and a more strongly submarginal line. The underside is duller red, without the coppery tinge.
The head and thorax are coppery red, the abdomen reddish grey.
The holotype was collected North-East of Fianarantsoa in the Forrest of Ivohimanitra (North of Ambohimanga Sud).