. Economic entomology. Beneficial insects; Insect pests; Thysanura. Chelifer museorum (magnified.) Chelifer cancroides (magnified and natural size). Chelifer cancroides {Ivoch). Found throughout Europe. Nos. Chelifer geoffroyi {Koch).—3, Specimens 2' ^ (3); 4. Enlarged figure. Another British species, but with less elongated anterior legs. Genus Obisium (//%). Cephalothorax not divided by a transverse furrow. Obisium carcinoides {Herm). Found i of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and

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. Economic entomology. Beneficial insects; Insect pests; Thysanura. Chelifer museorum (magnified.) Chelifer cancroides (magnified and natural size). Chelifer cancroides {Ivoch). Found throughout Europe. Nos. Chelifer geoffroyi {Koch).—3, Specimens 2' ^ (3); 4. Enlarged figure. Another British species, but with less elongated anterior legs. Genus Obisium (//%). Cephalothorax not divided by a transverse furrow. Obisium carcinoides {Herm). Found i of 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 Murray, Andrew, 1812-1878. [London] Chapman and Hall

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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherlondonchapmanandha