Pyrgus centaureae (Rambur, 1839)

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Synonyms: Hesperia centaureae Rambur, 1839; Hesperia fasciata Lingonblad, 1944; Hesperia grisea Lingonblad, 1946; Hesperia striata Warren, 1926; Pyrgus albicostata Opheim, 1959; Pyrgus lineolata Kauffmann, 1950; Pyrgus luciarius Kauffmann, 1951; Pyrgus reducta Kauffmann, 1950; Pyrgus tripunctata Opheim, 1959
Homonyms: Pyrgus centaureae (Rambur, 1839)
Common names: Grizzled Skipper in English; Noords spikkeldikkopje in Dutch; Northern Grizzled Skipper in English; grizzled skipper in English; hespérie grisâtre in French; Grizzled Skipper in English; Northern Grizzled Skipper in English; moltesmyger in Norwegian Bokmål; myrvisslare in Swedish; suokirjosiipi in Finnish; klintblomvisslare in Swedish; klintvisslare in Swedish

Eliasson, U, Ryrholm, Holmer, Jilg & Gärdenfors (2005) Nationalnyckeln till Sveriges flora och fauna. Dagfjärilar. Hesperiidae-Nymphalidae
Fjärilar (Ragnar Hall) (2004) [Titel saknas]
Hodges, Ronald W., et al., eds., 1983: null. Check List of the Lepidoptera of America North of Mexico. xxiv + 284.
Opler, Paul A., 1999: null. A Field Guide to Western Butterflies, Second Edition. xiv + 540.
Pelham, Jonathan P., 2008: A catalogue of the butterflies of the United States and Canada with a complete bibliography of the descriptive and systematic literature. Journal of Research on the Lepidoptera, vol. 40. xiv + 658.