. The Dunesland heritage of Illinois. Sand dunes -- Illinois; Natural history -- Illinois. Fig. 14.—The caddisfly Trianodes tarda Milne, one of the species living in the Dead River. Above, adult insect. Below, tapering case made of bits of leaves; the front portion of the larva is shown protruding from the open end of the case. The larva drags its case with it when it crawls over submerged vegetation. that live only on meadowsweet, a species of sawfly that lives only on horsetail, and a peculiar assemblage of northern caddisflies occurring in the Dead River. These caddisflies, fig. 14, are aqu
. The Dunesland heritage of Illinois. Sand dunes -- Illinois; Natural history -- Illinois. Fig. 14.—The caddisfly Trianodes tarda Milne, one of the species living in the Dead River. Above, adult insect. Below, tapering case made of bits of leaves; the front portion of the larva is shown protruding from the open end of the case. The larva drags its case with it when it crawls over submerged vegetation. that live only on meadowsweet, a species of sawfly that lives only on horsetail, and a peculiar assemblage of northern caddisflies occurring in the Dead River. These caddisflies, fig. 14, are aquatic insects whose larvae make either portable cases or live in netlike retreats. When full grown, the larvae transform into pupae that live either in the. Fig. 15.—Dead River, Illinois Beach State Park. In this stretch of the river, case-making caddisfly larvae 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-. Urbana
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