Aphet Flash

Your swarm can emit a bright flash, much like aphet beetles, a genus of flash beetles once used by Osirian miners as sources of light. Each creature in its space must succeed at a Fortitude save against your class DC or spell DC, whichever is higher, or be Dazzled for 1 round (2 rounds on a critical failure). The swarm then glows with light like a torch until it returns to your body.