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A new Lycosid from Nevada
Volume 21, Page 1
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New Species of Pogonocherus, with Synoptic Table.
Volume 21, Page 5
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Two new Cecidomyiidae
Volume 21, Page 10
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Three new Trypetidae from the Pacific Islands
Volume 21, Page 12
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Note on the genus Phalaecus Stal
Volume 21, Page 18
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A new species of Aspidiotus
Volume 21, Page 22
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Some new species of Mallophaga from Michigan
Volume 21, Page 51
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Description of a new Coriscium
Volume 21, Page 57
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A new Xiphidion from Northern Georgia
Volume 21, Page 58
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A new Staphylinid (Col.) genus from Arizona
Volume 21, Page 117
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Description of a new Deltoid moth
Volume 21, Page 122
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Mallophaga from the birds of Laysan Island
Volume 21, Page 124
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Three new Hemiptera-Heteroptera from the Miocene of Colorado
Volume 21, Page 129
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A list of the genera described as new from 1758 to 1909 in the family Aphididae
Volume 21, Page 147
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Two new aphelinine parasites of scale insects.
Volume 21, Page 162
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Three new Psenid wasps from New Jersey
Volume 21, Page 168
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New species of Tineina from California
Volume 21, Page 171
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Two curious species of Aphididae from Illinois
Volume 21, Page 195
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On the classification of the Lyttidae (Meloidae s. Cantharidae auctt.)
Volume 21, Page 211
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The genus Copestylum
Volume 21, Page 222
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Notes on Oncideres texana Horn in Georgia : Oviposition.
Volume 21, Page 226
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A new species of Dasyllis from Pennsylvania
Volume 21, Page 243
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Fulton County (New York) Tipulidae. I
Volume 21, Page 247
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Henry. On a new species of the Saturnidae
Volume 21, Page 255
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West Indian Cecidomyiidae
Volume 21, Page 268
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New and little-known western bees
Volume 21, Page 270
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On some Acridiodidea from Puerto Bertoni, Paraguay
Volume 21, Page 301
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Two new Trypetidae from China
Volume 21, Page 308
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Description of a new genus and four new species of North American Cleridae
Volume 21, Page 320
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Four new Reduviidae
Volume 21, Page 324
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Trypetid galls and Eurosta elsa n. sp
Volume 21, Page 341
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Turner's genera of Thynnidae with notes on Ashmeadian genera
Volume 21, Page 345
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Notes on Mamestra trifolii Rott. and its allies
Volume 21, Page 357
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Synonymical notes on Neuroptera
Volume 21, Page 389
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A new polyctenid
Volume 21, Page 401
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Eupithecias that appear to be undescribed
Volume 21, Page 404
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A new Anthidium from New Jersey
Volume 21, Page 456
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Observations on Cicada pruinosa and a description of a new species
Volume 21, Page 457
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Mallophaga from birds and mammals
Volume 21, Page 459
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New North American Cossidae
Volume 21, Page 463
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Some Australian sawflies
Volume 21, Page 467