For more images of this species, see: BG.
Additionally, O. serrula could be confused with Edwardsiana, a genus that tends to have a similar yellowish coloration. However, the wing venation is different- in Ossiannilssonola, the apical crossveins tend to more or less form a line, whereas Edwardsiana (like Empoa) has a jagged, zigzag apical crossvein pattern. A detailed pic of the wings is therefore necessary to get a ense of which genus these yellowish individuals belong to. Furthermore, Edwardsiana is a more slender genus, with comparatively longerwings and a thinner but longer head.