. The classification, evolution, and dispersal of the winter stonefly genus Allocapnia. Insects; Allocapnia. !.">. Fig. 105. Distribution of Allocapnia aurora (open circle). The "x" 's are popu- lations of nivicola having possible aurora x nivicola 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 Ross, Herbert Holdsworth, 1908-; Ricker, William Edwin. Urbana, University of Illinois Press

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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectinsects