. Animal communities in temperate America : as illustrated in the Chicago region; a study in animal ecology. Animal ecology; Zoology -- Illinois Chicago. COTTONWOOD ASSOCIATION 223 species. Some bee-flies (Exoprospa) (Fig. 188) lay their eggs at the entrances of the burrows of Microbembex. The roots of the beach grasses are probably attacked by the larvae of snout-beetles (Sphenophorus) (Fig. 189) (174) of which several species are very common in the vicinity. The white grasshopper {T rimer otro pis maritima) (40) and the white tiger- beetle (Cicindela lepida) are most characteristic. The long
. Animal communities in temperate America : as illustrated in the Chicago region; a study in animal ecology. Animal ecology; Zoology -- Illinois Chicago. COTTONWOOD ASSOCIATION 223 species. Some bee-flies (Exoprospa) (Fig. 188) lay their eggs at the entrances of the burrows of Microbembex. The roots of the beach grasses are probably attacked by the larvae of snout-beetles (Sphenophorus) (Fig. 189) (174) of which several species are very common in the vicinity. The white grasshopper {T rimer otro pis maritima) (40) and the white tiger- beetle (Cicindela lepida) are most characteristic. The long-horned locust (Psinidia fenestralis) (Fig. 189) occurs commonly. b) Field stratum.—The field stratum is made up of animals that occupy the grasses, sagebrush, and a few other xerophytes. Animals. Digger-Wasps of the Cottonwood or White Tiger-Beetle Association Fig. 183.—Photograph of a number of the burrows of one of the digger-wasps {Microbembex monodonta) at Pine, Ind. Fig. 184.—A digger-wasp {Bembex spinolae)) about twice natural size. Fig. 185.—A sectional drawing of a burrow of the digger-wasp {Bembex spinolae); reduced (after the Peckhams, Wis. Geol. and N. H. Surv.). are few. An occasional red-legged locust (Melanoplus femur-rubrum) occurs here. Midges, mosquitoes, and the flies which breed on the beach rest on the leeward side of the grasses (169). Various native sparrows are common in fall, feeding on grass and weed seeds. c) Shrub stratum.—On the young cottonwoods we find the crab- spider (Philodromus alaskensis), often with its appendages stretched out on the petiole or midrib of a leaf. The animals feeding on the cotton- wood here are few. In early spring the willow blossoms are frequented. 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; Ge
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Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjectanimalecology
