The Rianconi were a humanoid species of herbivores from the Orion Nebula in the Beta Quadrant. When their homeworld was destroyed by cosmozoa, the survivors joined the Pa'haquel hunters. By making themselves indispensable, they became the founding members of the Pa'haquel alliance. (TTN novel: Orion's Hounds)
Rianconi were dainty humanoids with lavender fur on top of their heads and down the outsides of their arms and legs. They wore little clothing besides a thong, footwear and equipment on arms and legs. (TTN novel: Orion's Hounds)
The Rianconi were a non-confrontational people. A hundred generations before 2380, the Rianconi homeworld was destroyed by starbeasts, but many Rianconi were saved by the Pa'haquel. The Rianconi were intimidated by the predatory avians at first. Initially, the Pa'haquel intended to leave the Rianconi on another planet, but the Rianconi did not feel safe on a planet anymore and wanted to be helpful instead of helpless. They made themselves indispensable to the community of hunters by tending to the needs of other species, including physical, psychological and sexual care-giving.
This led to the formation of the Pa'haquel alliance, an interstellar community of hunters. When the Orion Nebula was cleared from destructive cosmozoa, the alliance followed the migration of space-borne organisms to the Gum Nebula, where more species joined the alliance.
In 2380, the Pa'haquel alliance made first contact with the United Federation of Planets when the Starfleet science vessel USS Titan arrived in the sector to explore the Gum Nebula. Oderi worked closely with Titan's diplomatic officer, Counselor Deanna Troi, during the processing of Shalra refugees after their homeworld was destroyed. (TTN novel: Orion's Hounds)