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New genera and species of Phalaenidae (Lepido-ptera)
Vol 9, Page 1, Date 1933
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The species of Miscodera (Coleoptera-Carabidae)
Vol 9, Page 7, Date 1933
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On a collection of Centipeds and Millipeds from Costa Rica
Vol 9, Page 11, Date 1933
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Bees col-lected at Borego, California, by Wil-matte P. Cockerell & Milene Porter
Vol 9, Page 25, Date 1933
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A short review of Dyslobus Leconte, a genus of broad-nosed weevils of the subfamily Otiorhynchinae with descriptions of new species
Vol 9, Page 31, Date 1933
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Note on the relationship of an Ichneumonid to certain digger Wasps
Vol 9, Page 49, Date 1933
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Notes on Phalaenidae from Arctic America, supplemented with material from high altitudes
Vol 9, Page 53, Date 1933
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On five species of Diptera, new and old
Vol 9, Page 63, Date 1933
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Two new California butterflies (Lepidoptera, Rho-palocera)
Vol 9, Page 75, Date 1933
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Collembola from the State of Washington
Vol 9, Page 77, Date 1933
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A new Buprestid from British Columbia, with notes on the genus Buprestis
Vol 9, Page 84, Date 1933
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A new species of Helops from Guadalupe Island (Coleoptera, Tenebrionidae)
Vol 9, Page 88, Date 1933
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A new Whip-Scorpion from Cuba
Vol 9, Page 91, Date 1933
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A nev species of Neoclytus from white fir (Coleo-ptera, Cerambycidae)
Vol 9, Page 93, Date 1933
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Hudson Bay butterflies and a new transition form (Lepid.)
Vol 9, Page 97, Date 1933
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Notes on the species of the ochroptena-circumlucens group of Papaipema (Lepid., Phalaenidae)
Vol 9, Page 100, Date 1933
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Notes on some Hispini and Cassidini and descriptions of new species (Coleoptera, Chryso-melidae)
Vol 9, Page 103, Date 1933
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A new tribe of Carabidae (Coleoptera) from western United States
Vol 9, Page 110, Date 1933
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Two new species of Scarnbaeidae (Coleoptera)
Vol 9, Page 115, Date 1933
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Notes on Carabidae
Vol 9, Page 117, Date 1933
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On a new eyeless Spider of the family Linyphiidae from Potter Creek Cave, California
Vol 9, Page 122, Date 1933
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Regeneration of the cerci in Forficula auricularia L
Vol 9, Page 129, Date 1933
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Some new western leafhoppers of the Fulgorid family Achilidae
Vol 9, Page 133, Date 1933
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Dermaptera in the collection of the California Academy of Science
Vol 9, Page 140, Date 1933
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Notes on Phalaenidae (Lepidoptera)
Vol 9, Page 145, Date 1933
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New or little-known western bees
Vol 9, Page 153, Date 1933
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Two Coleopterous families new to Mexico
Vol 9, Page 160, Date 1933
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New Longi-corns from the Japan Empire (Coleopt., Cerambycidae)
Vol 9, Page 163, Date 1933
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New distri-butional and host plant records of Heteroptera for California. I
Vol 9, Page 171, Date 1933
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Three new species of Thrips Linne from the western United States
Vol 9, Page 173, Date 1933
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Two old and two new Pleocomas
Vol 9, Page 184, Date 1933