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New Neo-tropical Species of Ensign-Flies or Evaniidae (Hymenoptera)
Vol 48, Page 1
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Notes on Certain Species of Melanostoma (Diptera; Syrphidae)
Vol 48, Page 35
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New genera and species of Melanopli found within the U. S
Vol 48, Page 49
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New Species of Coleoptera of the Tribe Clerini, with Notes on others
Vol 48, Page 67
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The Genus Xiphandrium Loew in North America (Diptera, Dolichopodidae)
Vol 48, Page 79
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North American Acrididae (Orthoptera)
Vol 48, Page 89
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On the Male Genitalia of the Larger Hesperiidae of North America
Vol 48, Page 109
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Notes on a few interesting Blattidae from Guatemala, with the Description of a New Species (Orthoptera)
Vol 48, Page 129
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Zorolypus swezeyi, a new species of the order Zoraptera from Hawaii
Vol 48, Page 133
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Notes on the Life History, Parasites and Inquiline Associates of Anthophora Abrupta Say, with Some Comparisons with the Habits of Certain Other Anthophorinae (Hymenoptera)
Vol 48, Page 137
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Dermaptera and Orthoptera from the state of Sinaloa, Mexico. I. Dermoptera and non-saltatorial Orthoptera
Vol 48, Page 157
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The Bassett Types of Cynipidae (Hymenoptera)
Vol 48, Page 197
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A new species of Hesperiidae (Lepidoptera Rhopalocera)
Vol 48, Page 205
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The genitalia of male Diptera and Mecoptera compared with those of related insects, from the standpoint of phylogeny
Vol 48, Page 207
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Flies of the Anthomyiid Genus Phaonia Robineau-Desvoidy and Related Genera, Known to Occur in North America
Vol 48, Page 227
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On the Male Genitalia of the Hesperiidae of North America: Paper II
Vol 48, Page 283
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Systematic and biological notes on Bumblebees (Bremidae; Hymenoptera)
Vol 48, Page 307
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STUDIES IN THE MANTIDAE AND PHASMIDAE OF PANAMA (ORTHOPTERA)
Vol 48, Page 327