The micromoth genus Scrobipalpomima Povolny, 1985, mainly distributed in southern South America, is one of the more diverse Neotropical genera of Gonorimoschemini (Lepidoptera: Gelechiidae: Gelechiinae). The adult stage of Scrobipalpomima agustini sp. nov. is described and illustrated from the Andes of northern Chile. Larval feeding and pupation of S. agustini occur inside fusiform stem galls on the native spiny shrub Adesmia spinosissima Meyen (Fabaceae). The larva and pupa of S. agustini are illustrated and briefly described. This discovery expands the northern limit of Scrobipalpomima and represents the first record of immature stages and host plant for this genus of micromoths