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Notes on some genera of Ophioninae with toothed femora
Volume 18, Page 21
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Notes on the guests of some Californian ants
Volume 18, Page 27
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New predaceous and parasitic Acarina
Volume 18, Page 37
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On the homologies and mechanism of the mouthparts of Hemiptera
Volume 18, Page 75
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On some Northwestern ants and their guests
Volume 18, Page 102
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Two new names of sphecoid wasps
Volume 18, Page 153
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Tipula fallax and others
Volume 18, Page 160
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Synonymical, and other notes on the Tipulidae (Diptera)
Volume 18, Page 192
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New North American Diptera
Volume 19, Page 1
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A peculiar new crane-fly from Porto Rico (Tipulidae; Diptera)
Volume 19, Page 63
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New names for some ants of the genus Formica
Volume 19, Page 90
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A new species of Emesidæ from Vermont
Volume 19, Page 97
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Dipterological notes
Volume 19, Page 102
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The velutinous species of the genus Chrysopilus
Volume 19, Page 108
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New and interesting Diptera
Volume 19, Page 151
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Additions to our knowledge of the ants of the genus Myrmecocystus Wesmael
Volume 19, Page 172
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The North American species of the genus Haematopota
Volume 19, Page 181
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A new Melittobia from Queensland, Australia
Volume 19, Page 203