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The poplar bark aphid (Schizoneura populi n. sp.)
Vol 19, Page 1
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Notes on the tipulid genus Dicranomyia
Vol 19, Page 5
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Notes on the Coleoptera of Placer County, Calif.
Vol 19, Page 66
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The North American species of Chariessa (Coleoptera)
Vol 19, Page 70
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A new Anisota from Arizona (Lepidoptera Heterocera, Ceratocampidae)
Vol 19, Page 77
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Two new species belonging to the dipterous families Ortalidae and Trypetidae from Dutch Guiana, with notes on others of these groups
Vol 19, Page 95
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Notes on some neuropteroids from Raleigh, N. C
Vol 19, Page 133
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A new genus and species of Decticinae (Orthoptera) from California
Vol 19, Page 156
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New Scarabaeidae
Vol 19, Page 159
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New North American Pachyrhina, with a table for determining the species
Vol 19, Page 173
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New species of the tipulid genus Rhypholophus, with a table for determining the North American species
Vol 19, Page 200
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A new genus and species of Neuroptera
Vol 19, Page 203
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Contarinia gossypii n. sp
Vol 19, Page 210
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A new genus and species of Oribatidae
Vol 19, Page 243
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The green Aphis of the Chrysanthemum- Aphis rufomaculata n. sp
Vol 19, Page 261
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New Pyralidae
Vol 19, Page 263
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Three related American species of Aeshna (Odonata)
Vol 19, Page 264
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Incidental studies of new species of Oscinis
Vol 19, Page 272
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Notes on the Paychodidae
Vol 19, Page 274
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Descriptions of two new Gelechidae from California
Vol 19, Page 316
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New Coleoptera, with notes on some New Jersey Histeridae
Vol 19, Page 318
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Numerical distribution of some insects
Vol 19, Page 324
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A new cedidomyiid on oak
Vol 19, Page 349
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The occurrence of the remarkable braconid genus Helorimorpha in America
Vol 19, Page 363
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Upon the aphis-feeding species of Aphelinus
Vol 19, Page 365
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Colorado Bembicidae
Vol 19, Page 373
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Four new Hymenoptera
Vol 19, Page 417
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One day's collecting, with a description of a new noctuid
Vol 19, Page 420
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A new dragonfly (Odonata) belonging to the Cordulinae, and a revision of the classification of the subfamily
Vol 19, Page 428
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Two new species of the genus Phthiracarus
Vol 19, Page 449