Plazi apparently has some odd synonyms which are host plants or just any scientific name appearing in a treatment. We might need to exclude all Plazi synonyms from the nub to avoid garbage.
e.g. host plants in this treatment:
In GBIF all the highlighted names from plazi end up like synonyms of Agrilus illectus Fall 1901: http://www.gbif.org/species/119394848/synonyms
The names are all tagged in taxonX: