A laboratory study was carried out on biology of sugarcane woolly aphid (SWA) predator, Dipha aphidivora Meyrick (Lepidoptera: Pyralidae). Dipha aphidivora occupied 5.6 ± 0.81, 24.61 ± 3.41, 7.80 ± 0.51, 1.65 ± 0.54 and 3.89 ± 0.74 days for incubation. total larval period, pupation, longevity of adult male and female, respectively. The total life cycle lasted for 43.27 ± 5.84 days. During its total larval period of 24.61 ± 3.41 days, a single D.aphidivora consumed on an average 6,074.84 ± 87.6 sugarcane woolly aphids.