The silverfish bug does not originate from one single major country. It is a worldwide problem, however, the number of infestations will vary around the world. It is difficult to establish just where these bugs originated because they existed for such a long time before any records were made and were established before most forms of communication existed. There are also many different countries that refer to them by different names, which would make it even more difficult to find an origin point.
Although its origin is unknown, Silverfish is typically an indoor pest and infestation usually occurs just after the tenants have moved in or completed a construction task that has resulted in increased moisture levels such as painting. Their prime food source outdoors is fungi on wood but they can survive on other substances such as book bindings and dead skin cells from humans which causes them to move into human dwellings seeking these goodies.