Lucihormetica is a South American genus of giant cockroaches from the family Blaberidae, collectively referred to as glowspot cockroaches. It had been anecdotally reported that the thoracic spots of males are bioluminescent, but detailed research has conclusively demonstrated otherwise, although autofluorescence has been documented, such that the spots will glow when exposed to ultraviolet light. The genus includes both relatively common and rare species: For example, L. verrucosa is sometimes kept in captivity, while eight of the remaining species only are known from a single specimen each.