Simulium is a genus of black flies that belongs to the family Simuliidae. These tiny insects are commonly found around streams and rivers and can be quite a nuisance to humans and animals alike. If you're looking for synonyms for the word Simulium, there are a few options. One popular alternative is "black fly," which is a more general term used to refer to any species of the Simuliidae family. Another option is "buffalo gnat," which is a name commonly used to describe Simulium species that are particularly large and aggressive. Other synonyms for Simulium include "no-see-ums," "biting midges," and "punkies".