. Bulletin. Geography. 234 DRV AND MESOPHYTIC FOREST COMMUNITIES forest temporary ponds. Beneath the leaves and wood are snails {Zonitoides arboreus), millipedes (Polydesmus sp.), and centipedes (Litho- bius sp.), and in dry weather Polygyra Ihyroides and muUilineata. Ground beetles and rove-bsetles are common. One finds Cicindela. Fig. 212.—The oak trec-hopper {Telamono qiicrci) (after Lugger). sexguttata, the green tiger-beetle, here rarely; it is much commoner in later stages, however. In the decaying logs and stumps are darkling beetles (156), numerous wireworms (Elateridae), and myriopods
. Bulletin. Geography. 234 DRV AND MESOPHYTIC FOREST COMMUNITIES forest temporary ponds. Beneath the leaves and wood are snails {Zonitoides arboreus), millipedes (Polydesmus sp.), and centipedes (Litho- bius sp.), and in dry weather Polygyra Ihyroides and muUilineata. Ground beetles and rove-bsetles are common. One finds Cicindela. Fig. 212.—The oak trec-hopper {Telamono qiicrci) (after Lugger). sexguttata, the green tiger-beetle, here rarely; it is much commoner in later stages, however. In the decaying logs and stumps are darkling beetles (156), numerous wireworms (Elateridae), and myriopods. Sometimes fungus-feeding beetles (Diaperis hydnl and Eustrophus tormentosus) are present in numbers. Ants are also often abundant. Carpenter ants are common. The aphid housing ant (Lasius unibratus subsp. mixtus var. aphidicola) is some- times abundant. In autumn certain galleries in the wood are crowded with woolly aphids which are the so-called "cows" which the ants house for the winter. b) Field and shrub strata.—• In moist weather the snails (Polygyra) mentioned above are common on the herbaceous vegetation, while the tree-frogs {Hyla versicolor and pickeringii) (139) are common, and spiders are numerous. c) Tree stratmn.~The oaks (137) are affected by many of the same species as in the earlier stages. The tree-frog is sometimes found in the. 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 Geographic Society of Chicago. Chicago, Ill. : Published for the Society by the University of Chicago Press
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