BOZ said:
gez, the galltrit, aleax, and agathion are also on the CC.
and the larva, i beleive, is in the creature crypt.
I forgot them, I'll edit my post
The larva in the crypt ? Where had it been published ? They're not in a MM nor in the MC of Faerûn, nor in the BoVD... The closest I see would be the Grey Waste of Hades Petitioner in the MotP, who are indeed called larvae; but I don't like the petitioner template very much -- I'd prefer larvae to be 1/2 HD outsiders, so that they may later evolve to 1 full HD manes or nupperibo, then lemure or dretch, etc.
After all, if there was a cambion creature in the ToH despite the half-fiend template in the SRD, they could be a larva creature in
Return to the Tome of Horrors 
. Beside, petitioners are not OGC... And, although I'd very like to have the MotP mechanics enter the SRD, I always heard about Deities & Demigods and the ELH.
Edit: Heh, I added all remaining celestials (well, no eladrins, I find them quite boring, they all looks the same). We definitely need to have the missing celestials somewhere, and it's better not to spread them among thirty books.
As for the larva, nope, it's not in the crypt -- it's referenced there, but actually it ain't there. 404 errors if you follow the link, and the crypt directory is indeed empty of any larva file.