. Bulletin. Geography. Fig. 277.—The grapevine Phylloxera {Phylloxera vasiatrix Planch.): a, leaf galls; b, section of gall with mother louse at center with young clustered about; c, egg; d, nymph; e, adult female; /, same from side; a, natural size, others much enlarged (after Marlatt, Div. Dept. Agr.). One of the most interesting forms found here is Manlispa brunnea (Fig. 279). This is a neuropterous insect with forelegs adapted for seizing prey. Its larva is a parasite in the egg-cases of spiders. - The adult appears in July. In the autumn, after the leaves have fallen, one sees
. Bulletin. Geography. Fig. 277.—The grapevine Phylloxera {Phylloxera vasiatrix Planch.): a, leaf galls; b, section of gall with mother louse at center with young clustered about; c, egg; d, nymph; e, adult female; /, same from side; a, natural size, others much enlarged (after Marlatt, Div. Dept. Agr.). One of the most interesting forms found here is Manlispa brunnea (Fig. 279). This is a neuropterous insect with forelegs adapted for seizing prey. Its larva is a parasite in the egg-cases of spiders. - The adult appears in July. In the autumn, after the leaves have fallen, one sees many nests of spiders on the high forest margin shrubs, so the young parasites have a good chance to secure their best food conditions here. Hawthorns often occur, and on the trunks we find woolly plant-lice (Schizoneura) in great white clusters (150). The hawthorn supports many of the pests of 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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Keywords: ., bookcentury1900, bookdecade1910, booksubjectgeography, bookyear19
