Synonyms: Colletes compactus compactus.
"Colletes compactus is a late fall Colletes, specializing on things like goldenrod. Colletes is an interesting group....different species coming out throughout the year and many of them highly specialized in what they gather pollen from. They perhaps are all specialists, but some are quite rare and so we know little (a common story). It would be good to create a funding program that just find and study rare bees. A solution looking for a funder." (S. Droege, pers. comm.)
There are 11 records in the project database.
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