Colias johanseni Troubridge and Philip, 1990 – Coppermine Sulphur
Checklist of North American Butterflies, 2nd Edition, website (version 2)
Produced by the North American Butterfly Association (NABA) Names Committee, and available online (with corrections) at http://www.naba.org/pubs/checklst.html (web page may not be identical to the printed edition)
Coliasjohanseni, Coppermine Sulphur [English]
Pelham, Jonathan P.
A catalogue of the butterflies of the United States and Canada with a complete bibliography of the descriptive and systematic literature
Journal/Book Name, Vol. No.:
Journal of Research on the Lepidoptera, vol. 40
xiv + 658
As noted in the Introduction, Pelham intentionally diverges from the Code's provisions on gender agreement (Articles 31 & 34), following original orthography instead
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