These monsters have been given the appellation Mi-go to help with sorting them into their own cup. The start text indicates where the monster will come into play. Ignore this text if the monster is drawn outside of the Mythos Phase (e.g. you are instructed to draw a monster from the Mi-go cup as a result of an encounter). Should the location not exist in the current game (e.g. you draw a Mi-go which would spawn in Innsmouth but you are not using the Innsmouth Horror expansion) discard the monster and draw again.
You will need five copies of the Mi-go Technician, five copies of the Mi-go Scout, three copies of the Mi-go Worker and five copies of the Mi-go soldier. The latter is a spawn monster and should be set aside until you are instructed to put it into play. The Mi-go Researchers, Agents and Activists given below are also distinct and start in different locations, so will require printing out separately.
Credits: The mi-go monsters were mostly created by Hal Eccles, with a few additions by myself. Walter Brown is taken from the Whispers in Darkness casebook by Jocularis.