Eretmocera impactella is a moth of the family Scythrididae. This species is known from Oman, United Arab Emirates, India, Sri Lanka, Taiwan, Thailand, and Pakistan.
The forewings are blackish brown with more or less distinct whitish or white yellowish markings.
The larvae feed on various Amaranthaceae species and other food plants. Adults are mainly seen during the daytime, and can be seen in mating pairs (joined tail-to-tail). The pair are unable to fly during mating, and so take turns walking (one backwards, the other forwards).