Vespiform
Vespiforms were an ancient and wise insectoid race that had hives in the Silfrax Galaxy.
Biology
Vespiforms resembled oversized wasps. Adults were about three metres tall. They were powerful creatures with large stingers.
They could change into other species. The transformation was usually accompanied by a glowing purple-pink haze and left behind morphic residue.
When in another form, they were genetically compatible with the other species. They could interbreed and any offspring would be locked in one form until put under stress.
Technology
Vespiform had telepathic recorders. These held the essence of their cultural heritage and this information could be transferred from the recorder to the mind in a matter of seconds.
Appearances
The Killer Wasps (Comic) - note: this was actually their first appearance. The comic featured the 2nd Doctor and Jamie
The Unicorn and the Wasp (TV)
Millennial Rites (Prose)
The End of Time (TV)