. Animal communities in temperate America, as illustrated in the Chicago region ; a study in animal ecology. Animal ecology; Zoology. 200 WET FOREST COMMUNITIES Subterranean-ground stratum: The nymphs of the seventeen-year cicada and the two-year cicada together with earthworms are always numerous. The latter comes out on the ground under a log and ascends under the bark of dead trees during wet weather. On the ground one finds slugs (Agriolimax campestris). Under leaves, logs, and bark are snails {Circinaria concava, Polygyra profunda,. Representatives of the Flood-Plain Forest Animal Communi
. Animal communities in temperate America, as illustrated in the Chicago region ; a study in animal ecology. Animal ecology; Zoology. 200 WET FOREST COMMUNITIES Subterranean-ground stratum: The nymphs of the seventeen-year cicada and the two-year cicada together with earthworms are always numerous. The latter comes out on the ground under a log and ascends under the bark of dead trees during wet weather. On the ground one finds slugs (Agriolimax campestris). Under leaves, logs, and bark are snails {Circinaria concava, Polygyra profunda,. Representatives of the Flood-Plain Forest Animal Communities Fig. 151.—A caterpillar {Symmerista albifrons) on the leaf of the soft maple; natural size. Fig. 152.—^The common land sowbug {Porcellio ralhkei); twice natural size. Fig. 153.—The scorpion fly {Panorpa venosa); much enlarged. Fig. 154.—A sphinx caterpillar from Virginia creeper; natural size. Fig. 155.—The unicorn larva from dogwood; enlarged. Pyramidula alternata, and Polygyra clausa, and rarely thyroides). Land sowbugs are common (Fig. 152). Of the centipedes we note the long ground form {Geophilus sp.) and sometimes the large millipede {Spiro-. 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 Shelford, Victor E. (Victor Ernest), b. 1877; Metcalf Collection (North Carolina State University). NCRS. Chicago, Ill. , Pub. for the Geographic Society of Chicago by the University of Chicago Press
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1913
