Hey Goose,
It's a bit confusing to use the common names, because most bugs have several common names (and most common names, like sulphur, apply to several bugs). I've got an article on this site,
In Defense of Latin Names, which goes into more detail on why I like to use the scientific names.
I realize most people don't know them, which is why I made the prey library part of the site use both. I think people in the forums are likely to use an mix of the names, which will be a bit confusing, but that's how things go. I'll try to mention both whenever it's suitable.
One other problem is that sometimes we're talking about species that don't really have any common name. Lots of hatches are like that.
Eventually the scientific names just kinda rub off. I learned them first and they seem easier to me... the words are a little bigger but keeping track of which thing is which is a lot less confusing.
Gonzo -- thanks for the translation here!