. Annotated checklist of the butterflies of Illinois. Butterflies. 25. Erynnis juvenalis Y^. 28. Thorybes pylades. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Irwin, Roderick R. Urbana, Illinois Natural History Survey
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Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectbutterflies