. The classification, evolution, and dispersal of the winter stonefly genus Allocapnia. Insects; Allocapnia. 154 "- °. Fig. 103. Distribution of other members of Allocapnia rickeri group. The record for perplexa is the light area in the middle of the dots for 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