Vespergaunts were created by Paizo Inc in 2012, appearing in the Inner Sea Bestiary sourcebook for the Pathfinder RPG.
Vespergaunts are the emissaries and tools of the eldritch gods of the Dark Tapestry. Who are found mainly on Aucturn, operating as spiritual conduits for those who need to contact the Great Old Ones. Creatures that are 8 ft tall and 6 ft tall wide, collecting and relaying to the dark gods those prayers which they've deemed worthy. They also prepare inhabited worlds for the coming of the Dominion of the Black.