Now we're getting somewhere! From this point in the dex through Chastal are a bunch of Mons that were added to the Dex later in development, circa 2007 or 2008, to fill obvious gaping holes in the selection of early game mons and Bug-types in particular. They were largely catalogued entirely on Wikidex, a short-lived Wiki-style Dex project that was to encompass not just Treasures but other fangames. It crashed long before the rest of the site due to spam.