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Cyphoderris Monstrosa
Vol 33, Page 17, Date 1901
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Some plant-lice affecting peas, clover and lettuce
Vol 33, Page 31, Date 1901
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Nepticula pomivorella Packard alias Micropteryx pomivorella Packard
Vol 33, Page 52, Date 1901
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Table to separate the genera and subgenera of Coccidae related to Lecanium
Vol 33, Page 57, Date 1901
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Four new species of Hippiscus
Vol 33, Page 88, Date 1901
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On Some Arizona Acridiidae
Vol 33, Page 102, Date 1901
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Lecanium websteri, Ckll. and King n. sp. with notes on allied forms
Vol 33, Page 106, Date 1901
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Collecting notes on Kansas Coleoptera - II
Vol 33, Page 110, Date 1901
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New North American Orthoptera
Vol 33, Page 129, Date 1901
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Three new parasitic Hymenoptera from South Africa
Vol 33, Page 138, Date 1901
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The Coccidae of British North America
Vol 33, Page 193, Date 1901
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A new gooseberry plant-louse
Vol 33, Page 227, Date 1901
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New diurnal Lepidoptera from Bolivia
Vol 33, Page 265, Date 1901
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Some necessary changes and corrections in names of Orthoptera
Vol 33, Page 271, Date 1901
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Some new Diptera
Vol 33, Page 284, Date 1901
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A new genus of Myrmeleonidae
Vol 33, Page 329, Date 1901
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The Coccidae of British North America
Vol 33, Page 333, Date 1901