Thxs for your contribution
Double checked with my gildies and none of the agents was able to find the codex entry so it seems to be missing or bugged.
You're welcome. If I find, err, don't find, any others I'll let you know.
You have Evocii on the list. I don't know how I found it, but all my characters that started on Hutta have all their Hutta species entries completed.