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Description of the larva of Pleocoma hirticollis vandykei Linsley (Coleoptera, Scarabaoidae)
Vol 23, Page 11
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Two new species of Apanteles from California (Hymenoptera: Braconidae)
Vol 23, Page 21
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Two new species of bees from Arizona (Hymenoptera, Apoidea)
Vol 23, Page 26
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New species of the gonus Triozoida (Psyllidae, Homoptora)
Vol 23, Page 31
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A small sage Aphid
Vol 23, Page 35
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On four new Chilopods
Vol 23, Iss 1, Page 37
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A new gonus and species of the Coleopterous family Tonebrionidae
Vol 23, Page 59
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On tho genera of Philanthine wasps, with tho description of a new species from Arizona (Hymenoptera: Sphecidae)
Vol 23, Page 63
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A simple method of mounting Aphids
Vol 23, Page 73
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A now Pterodontia from New Guinea (Diptera, Aoroceratidae)
Vol 23, Page 74
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A new genus (Crassana), new subgenus (Macrasana) and new species of North American leafhoppors (Homoptera-Cicadellidae)
Vol 23, Page 76
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Notes on migrations of the painted lady butterflv in 1945
Vol 23, Page 79
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Notes on the Dasymutilla of the Palo Verde Valley, California with the description of a new species (Hymenoptera, Mutillidae)
Vol 23, Page 85
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Undescribed species of Tipulidae from the western United States (Diptera). III
Vol 23, Page 91
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A new Aphid on Penstemon in the Sierra of California
Vol 23, Page 97
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A new myrmecophilus milliped from Mexico
Vol 23, Iss 3, Page 101
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A new genus Usanus and new species of Mexican leafhopper related to Chlorotettix
Vol 23, Page 110
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A new Speyeria from Washington
Vol 23, Page 111
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Taxonomy of the larvae of some North American Noviini (Coleoptera, Coccinellidae)
Vol 23, Page 113
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A new subspecies of butterfly
Vol 23, Page 119
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Studies on North American Mordellidae, V (Coleoptera)
Vol 23, Page 121
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A sensillum in Carpophilus and Haptoncus (Coleoptera, Nitidulidae)
Vol 23, Page 134
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A new hollyhock Aphid
Vol 23, Page 137
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Three new Psyllids from Costa Rica (Psyllidae: Homoptora)
Vol 23, Page 141
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New species of Oliarus Stal from south-western United States and Mexico (Homoptora : Cixiidae)
Vol 23, Page 145
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The occurrence of the genus Stethynium in California (Hymenoptera: Mymaridae)
Vol 23, Page 152
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New species of Coleoptera from Western North America
Vol 23, Page 155
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Distributional and biological notes on the species of the subgenus Melanophila occurring in Western North America (Coleoptera ; Buprestidae)
Vol 23, Page 162
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The Oriental species of Oplodontha (Diptera: Stratiomyidae)
Vol 23, Page 167
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Thysanoptera from Now Guinea, the Philippine Islands and the Malay Peninsula
Vol 23, Page 172
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Empimorpha geneatis Melander, a balloon fly from California, with a chemical examination of its balloons (Diptera: Empididae)
Vol 23, Page 181