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Reticulate evolution in Colymbetes (Coleoptera: Dytiscidae)
Vol 57, Iss 1, Page 43
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A description of the larva of Helocombus bifidus (Coleoptera: Hydrophilidae)
Vol 57, Iss 1, Page 52
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Predaceous water beetles of the genus Desmopachria Babington: the leechi-glabricula group (Coleoptera: Dytiscidae)
Vol 57, Iss 1, Page 57
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Two new genera, two new species of bidessine water beetles from South America (Coleoptera: Dytiscidae)
Vol 57, Iss 1, Page 65
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Key to the world genera of Larinae (Coleoptera, Dryopoidea, Elmidae), with descriptions of new genera from Hispaniola, Colombia, Australia, and New Guinea
Vol 57, Iss 1, Page 76
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New species of North American Hydroporus, niger - tenebrosus group (Coleoptera: Dytiscidae)
Vol 57, Iss 1, Page 105
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Notes on the natural history of Spanglerogyrus albiventris Folkerts, with a new distribution record (Coleoptera: Gyrinidae)
Vol 57, Iss 1, Page 124
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A distributional survey of the world genera of aquatic dryopoid beetles (Coleoptera: Dryopidae, Elmidae, and Psephenidae sens. lat.)
Vol 57, Iss 1, Page 133
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Notes on nomenclature and classification of Hydroporus subgenera with the description of a new genus of Hydroporini (Coleoptera: Dytiscidae)
Vol 57, Iss 1, Page 149
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A revision of the subgenus Heterosternuta strand of Hydroporus Clairville (Coleoptera: Dytiscidae)
Vol 57, Iss 1, Page 176
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A new genus and species of water scavenger beetle from Africa (Coleoptera: Hydrophilidae: Sphaeridiinae)
Vol 57, Iss 1, Page 220
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Notes on Nearctic Helichus (Coleoptera: Dryopidae)
Vol 57, Iss 1, Page 226
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Huleechius, a new genus of riffle beetles from Mexico and Arizona (Coleoptera, Dryopoidea, Elmidae)
Vol 57, Iss 1, Page 228
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A durable, lightweight net and a manual aspirator for collecting aquatic organisms
Vol 57, Iss 1, Page 245
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A new genus and a new species of laccophiline water beetle from Ecuador (Coleoptera: Dytiscidae)
Vol 57, Iss 1, Page 251
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Some Omicrini from the Oriental and Pacific regions (Coleoptera: Hydrophilidae, Sphaeridiinae)
Vol 57, Iss 1, Page 260
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On the identity of Amphizoa kashmirensis Vazirani (Coleoptera: Amphizoidae)
Vol 57, Iss 1, Page 269
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Trachypachidae and Hydradephaga (Coleoptera): a monophyletic unit?
Vol 57, Iss 1, Page 273
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Pagelmis amazonica, a new genus and species of water beetle from Ecuador (Coleoptera: Elmidae)
Vol 57, Iss 1, Page 286
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Hughleechia giulianii, a new genus and new species of intertidal beetle from Australia (Coleoptera: Hydraenidae)
Vol 57, Iss 1, Page 295
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A clarification of the authorship of some names in Laccobius Erichson (Coleoptera: Hydrophilidae)
Vol 57, Iss 1, Page 303
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Two new Peruvian species of the riffle beetle genus Xenelmis (Coleoptera: Elmidae)
Vol 57, Iss 1, Page 306
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Ectopria leechi, a new false water penny from the United States (Coleoptera: Eubriidae)
Vol 57, Iss 1, Page 313
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On the identity of Saldula laticollis (Reuter) (Heteroptera: Saldidae)
Vol 57, Iss 2, Page 321
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The larval description and ecological notes of a caddisfly, Nectopsyche tavara (Ross) from the central Florida refugium (Trichoptera: Leptoceridae)
Vol 57, Iss 2, Page 327
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Biological observations on three Trypoxylon wasps in the subgenus Trypargilum from Costa Rica: T. nitidum schulthessi, T. saussurei and T. lactitarse (Hymenoptera: Sphecidae)
Vol 57, Iss 2, Page 332
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The larva of Sympetrum madidum (Hagen) (Odonata: Libellulidae)
Vol 57, Iss 2, Page 341
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A laboratory method for rearing Bonnetia comta Fallen (Diptera: Tachinidae)
Vol 57, Iss 2, Page 347
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A new North American chrysidid genus and redescription of the genus Pseudolopyga Krombein (Elampinae, Hymenoptera)
Vol 57, Iss 2, Page 351
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The status of the Columbia tiger beetle (Cicindela columbica Hatch) in Idaho (Coleoptera, Cicindelidae)
Vol 57, Iss 2, Page 359
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A new species of Coscinoptera Lacordaire from California (Coleoptera: Chrysomelidae)
Vol 57, Iss 2, Page 364
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Two new species of Pogonomymex harvester ants from Texas (Hymenoptera: Formicidae)
Vol 57, Iss 2, Page 371
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Courtship and diet of the Neotropical robber fly Mallophora schwarzi Curran (Diptera: Asilidae)
Vol 57, Iss 2, Page 380
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Orobittacus obscurus, a new genus and species of Bittacidae (Mecoptera) from California
Vol 57, Iss 3, Page 385
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Three new species of Ambrysus from Mexico (Hemiptera: Naucoridae)
Vol 57, Iss 3, Page 397
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Life history of the gall-forming moth, Carolella beevorana Comstock, on the ragweed, Ambrosia dumosa (Gray) Payne, in southern California (Lepidoptera: Cochylidae)
Vol 57, Iss 3, Page 402
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Nonarthra cyaneum Baly (Coleoptera: Chrysomelidae: Alticinae), a pan-pacific flea beetle
Vol 57, Iss 3, Page 411
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A review of the genus Roederiodes Coquillett with the description of a new species (Diptera: Empididae)
Vol 57, Iss 3, Page 415
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A revision of the genus Niphogenia Melander (Diptera: Empididae)
Vol 57, Iss 3, Page 422
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Descriptions of the immature stages of Stobaera tricarinata (Say) (Hemiptera-Homoptera: Delphacidae)
Vol 57, Iss 3, Page 429
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Records of Plecoptera (Insecta) from southeastern Alaska
Vol 57, Iss 3, Page 434
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The effects of an outbreak of Tridepia nova (Smith) (Lepidoptera: Noctuidae) on four-wing saltbush, Atriplex canescens (Pursh) Nutt
Vol 57, Iss 3, Page 443
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Aggregation in two sympatric species of crane fly (Diptera: Tipulidae)
Vol 57, Iss 3, Page 447
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Mayflies of the southwest: new records and notes of Siphlonuridae (Ephemeroptera)
Vol 57, Iss 4, Page 449
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A new species of Ammophila from North America (Hymenoptera: Sphecidae)
Vol 57, Iss 4, Page 457
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Pleocoma spp. in western Oregon coniferous forests: observations on adult flight habits and on egg and larval biology (Coleoptera: Scarabaeidae)
Vol 57, Iss 4, Page 461
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Additions to the known species of Pseudotypocerus and Strangalia (Coleoptera: Cerambycidae)
Vol 57, Iss 4, Page 485
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Two new Dicranocentrus from Nepal and a key to the Indian and Nepalese species (Collembola: Entomobryidae)
Vol 57, Iss 4, Page 493
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New species of Rhyacophila from California (Trichoptera: Rhyacophilidae)
Vol 57, Iss 4, Page 500
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First California record for Dendrosoter protuberans (Nees) (Hymenoptera Braconidae)
Vol 57, Iss 4, Page 504