Panemeria tenebrata, the small yellow underwing, is a moth of the family Noctuidae.

It is found in Europe but is missing in northern Scandinavia, in Portugal, in central and southern Spain, as well as on most Mediterranean islands, except Sicily.

Occurrence in Asia Minor is uncertain, but it is known from Jordan and Israel.

Forewing dark fuscous, varied with red brown and with a sprinkling of pale grey scales; inner and outer lines indistinctly darker; a dentate, cloudy dark fuscous median shade; a darker shade precedes and defines the subterminal hue; hindwing blackish, with a deep yellow outer fascia not reaching inner margin; in the ab.

the black borders of the hindwing are wider and the white band smaller.