Homoeosoma nimbella is a moth of the family Pyralidae.

The forewings are light ochreous, sometimes greyish-tinged, more or less sprinkled with dark fuscous, towards costa more or less broadly suffused with white; first line indicated by an angulated oblique series of three blackish dots, second straight, almost obsolete, hardly dark-edged; two blackish transversely placed discal dots.

Larva yellowish-green;dorsal line, subdorsal series of spots or rings, and spiracular series of three marks on each segment purplish; head dark brown; plate of 2 yellow-brown, posterior edge black: in flowers of Anthemis, Jasione, Senecio, etc.

[2][3][4][5] The moths are on wing from May to August depending on the location.

The larvae probably feed on the flowers or fruit of Asteraceae species.