Frumenta solanophaga is a moth in the Gelechiidae family. It was described by Adamski and Brown in 2002. It is found in Mexico (San Luis Potosi). The length of the forewings is 10-12.2 mm. The forewings are pale yellowish brown, intermixed with white and few pale-grey scales. Darker grey and browrn scales, each tipped with pale yellow form small costal spots, two to three larger, irregularly shaped discal spots, and large submarginal spots. The hindwings are shiny grey. The larvae feed on Solanum elaeagnifolium. They feed on the seeds and flesh of their host plant.