Kheilwar wasps were a species of dangerous creature, known for their deadly sting. In the year 34 ABY, the transport ship Sketter's Quarrel was found adrift in realspace, its entire crew having succumbed to death by kheilwar wasp stings. These wasps had escaped from a damaged shipping container aboard the vessel.
The Sketter's Quarrel was transporting a variety of exotic animals to Regent Solculvis of the Mol'leaj system, a collector with a private zoo of such creatures. The Sector Rangers, a law enforcement agency, investigated the incident. Details from their case file were later included in Scum and Villainy: Case Files on the Galaxy's Most Notorious, a book penned by Police Commissioner Exantor Divo and released in 34 ABY.
The existence of kheilwar wasps was initially established within the new Star Wars canon through the 2018 reference book, Star Wars: Scum and Villainy: Case Files on the Galaxy's Most Notorious, authored by Pablo Hidalgo. However, the kheilwar species had previously appeared in Star Wars Legends continuity, debuting in the short story "Murder in Slushtime," written by Barbara Hambly and featured in Star Wars Adventure Journal 14 in 1997.