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New names for Chironomus sepultus Meunier, 1912 and C. sepultus Melander, 1949 (non Chironomus sepultus Heer 1849) (Diptera: Chironomidae)
Vol 42, Iss 2, Page 161
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Observations on the floral relationships of the Galapagos carpenter bee (Hymenoptera: Apidae)
Vol 42, Page 1
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Observations on Dioxys productus productus (Cresson) as a parasite of Anthidium utahense Swenk (Hymenoptera: Megachilidae)
Vol 42, Page 18
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New Timema from Nevada and Arizona (Phasmodea: Timemidae)
Vol 42, Page 25
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Observations on territoriality and a new nesting substrate of Xylocopa californica arizonensis Cresson (Hymenoptera: Apoidea)
Vol 42, Page 27
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A new genus of the tribe Euplectini in California (Coleoptera: Pselaphidae)
Vol 42, Page 31
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Two new flies from California (Diptera: Anthomyiidae and Muscidae)
Vol 42, Page 33
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Studies on the bionomics of Tragidion armatum LeConte (Coleoptera: Cerambycidae)
Vol 42, Page 36
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The avian response to a population outbreak of the tent caterpillar, Malacosoma constrictum (Stretch) (Lepidoptera: Lasiocampidae)
Vol 42, Page 48
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Notes on the laboratory rearing of Notonecta hoffmanni (Hemiptera: Notonectidae)
Vol 42, Page 54
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Description of immature stages of three California species of phytoseiids including notes on their biology (Acarina, Phytoseiidae)
Vol 42, Page 58
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Life history of Philotes enoptes bayensis (Lepidoptera: Lycaenidae)
Vol 42, Page 102
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Immature and mating behavior of Neocompsa alacris (Bates) (Coleoptera: Cerambycidae)
Vol 42, Page 98
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A new Phytomyza species from California (Diptera: Agromyzidae)
Vol 42, Page 108
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Revision of the genus Micropsyrassa Linsley (Coleoptera: Cerambycidae)
Vol 42, Page 120
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Observations on the behavior of Xylocopa c. californica and X. tabaniformis orpifex (Hymenoptera: Apoidea)
Vol 42, Page 111
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New species and a key to the species of Saropogon Loew (Diptera: Asilidae)
Vol 42, Page 127
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Ochthehius bruesi Darlington in California and Utah (Coleoptera: Hydraenidae)
Vol 42, Page 137
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Toxonothrips gramineae, a rare thrips rediscovered in western North America (Thysanoptera: Thripidae)
Vol 42, Page 139
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The genus Callidiellum in North America (Coleoptera: Cerambycidae)
Vol 42, Page 151
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A new Pentalitomastix from Mexico (Hymenoptera: Encyrtidae)
Vol 42, Page 145
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A new species of Sigara from California (Corixidae, Hemiptera)
Vol 42, Page 168
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A new species of Allochthonius from the Pacific northwest of North America (Arachnida: Chelonethida)
Vol 42, Page 172
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Notes on Arcynopteryx (Oroperla) barbara (Needham) (Plecoptera)
Vol 42, Page 175
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New species of Apochthonius from western North America (Arachnida: Chelonethida)
Vol 42, Page 178
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Eclosion and duration of larval development in alkali bee, Nomia melanderi Cockerell (Hymenoptera: Apoidea)
Vol 42, Page 196
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Observations on the Yosemite bark weevil in California (Coleoptera: Curculionidae)
Vol 42, Page 184
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Notes on reared Cerambycidae (Coleoptera)
Vol 42, Page 201
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A note on two editions of S. S. Haldeman's descriptions of insects in the Stansbury report (Lepidoptera, Hymenoptera, Hemiptera (s. lat.), Orthoptera, Coleoptera)
Vol 42, Page 208
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A new species of the genus Eurytoma Illiger parasitic on bees of the genus Ceratina Latreille (Hymenoptera: Eurytomidae and Apoidea)
Vol 42, Page 210
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New Asilidae from Mexico in the genera Itolia and Sphageus (Diptera)
Vol 42, Page 212
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Three new North American Malthini (Coleoptera: Cantharidae)
Vol 42, Page 219
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New species of Parobisium Chamberlin (Arachnida: Chelonethida)
Vol 42, Page 223
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New and interesting Trichoptera
Vol 42, Page 228
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The genus Tigrinestola Breuning (Coleoptera: Cerambycidae)
Vol 42, Page 239
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Notes on Triepeolus remigatus (Fabricius), a 'cuckoo bee' parasite of the squash bee, Xenoglossa strenua (Cresson) (Hymenoptera: Apoidea)
Vol 42, Page 255
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Five new species Phalangodidae from California. (Opiliones)
Vol 42, Page 262
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A new schizomid whipscorpion from California with notes on the other (Uropygi: Schizomidae)
Vol 42, Page 270
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Oregon Dlplotaxis with descriptions of the larvae of four common species and notes on biology (Coleoptera: Scarabaeidae)
Vol 42, Page 274
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Distributional notes on Apamea acera (Smith) with discussion of the type specimen (Lepidoptera: Noctuidae)
Vol 42, Page 283
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A study of the hilltopping behaviour of Pieris occidentalis Reakirt (Lepidoptera: Pieridae)
Vol 42, Page 287
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New species of bark beetles from California with notes on synonymy (Coleoptera: Scolytidae)
Vol 42, Page 295
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A new species of Pteromicra from western North America and resurrection of Pteromicra pleuralis (Cresson) (Diptera: Sciomyzidae)
Vol 42, Page 307
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A new North American genus of soldier beetles (Coleoptera: Cantharidae)
Vol 42, Page 321
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A preliminary list of the Sciomyzidae of California (Diptera)
Vol 42, Page 318
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The status of Andrenosoma Rondani Pilica Curran, and Pogonosoma Rondani, with two new species (Diptera: Asilidae)
Vol 42, Page 323
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Systematic notes on Crabronids with description of a new species (Hymenootera: Spheddae)
Vol 42, Page 329
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A new brumal Empis from the San Francisco Bay area, California (Diptera: Empididae)
Vol 42, Page 332
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Host-parasite associations in some twig-nesting Hymenoptera from western North America
Vol 42, Page 91
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A review of the genus Xenosphex Williams with biological notes (Hymenoptera: Sphecidae)
Vol 42, Iss 3, Page 190
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Date of publication of Genera Insectorum, Fascicle 185, Family Empididae by Axel Leonard Melander
Vol 42, Iss 4, Page 337
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The genus Aspidaphium Borner (Homoptera: Aphididae)
Vol 42, Iss 1, Page 20