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On the Homologies and Mechanism of the Mouth-Parts of Hemiptera
Vol 18, Page 1, Date 1911
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A Note on the Hunting Habits of an American Ammophila
Vol 18, Page 13, Date 1911
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Notes on some genera of Ophioninae with toothed femora
Vol 18, Page 21, Date 1911
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Notes on the guests of some Californian ants
Vol 18, Page 27, Date 1911
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Western Lepidoptera IV
Vol 18, Page 32, Date 1911
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Additions to List of Sphingidæ of America North of Mexico
Vol 18, Page 34, Date 1911
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Some Carabidæ Taken in Connecticut
Vol 18, Page 35, Date 1911
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New predaceous and parasitic Acarina
Vol 18, Page 37, Date 1911
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The Dipterous Genus Diostracus Loew
Vol 18, Page 70, Date 1911
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Notes on the Dipterous Genera Proposed by Billberg in His Enumeratio Insectorum
Vol 18, Page 73, Date 1911
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Another Imported Clover Weevil
Vol 18, Page 74, Date 1911
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On the homologies and mechanism of the mouthparts of Hemiptera
Vol 18, Page 75, Date 1911
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The Food-Habits of Megarhinus
Vol 18, Page 80, Date 1911
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Stridulation of the Shield-Backed Grasshoppers of the Genera Neduba and Aglaothorax
Vol 18, Page 82, Date 1911
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A New Species of Lasioptera with Observations on Certain Homologies
Vol 18, Page 84, Date 1911
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Two New Species of Holcaspis from Mexico
Vol 18, Page 86, Date 1911
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Notes on Some Genera of Blattidæ
Vol 18, Page 88, Date 1911
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Lucilia sericata as a Household Pest
Vol 18, Page 89, Date 1911
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On some Northwestern ants and their guests
Vol 18, Page 102, Date 1911
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The Sound-Making of Diptera and Hymenoptera
Vol 18, Page 114, Date 1911
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The Stridulations of Two Interesting Locustidæ
Vol 18, Page 118, Date 1911
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Another Aquatic Caterpillar (Elophila)
Vol 18, Page 120, Date 1911
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The Philippine Mosquitoes
Vol 18, Page 125, Date 1911-08
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A New Genus of Reduviidæ
Vol 18, Page 144, Date 1911
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Hosts of Insect Egg-Parasites in North and South America. II
Vol 18, Page 146, Date 1911
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Two new names of sphecoid wasps
Vol 18, Page 153, Date 1911
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Tipula fallax and others
Vol 18, Page 160, Date 1911
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Pseudoscorpions in Ant Nests
Vol 18, Page 166, Date 1911
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Fluffy Cecropia Cocoons
Vol 18, Page 168, Date 1911
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Notes on Coleoptera from Connecticut
Vol 18, Page 170, Date 1911
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Notes on a Sarcophagid Found in a Turtle
Vol 18, Page 173, Date 1911
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Doctor Scudder’s Work on the Lepidoptera
Vol 18, Page 179, Date 1911
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The Orthopterological Work of Mr. S. H. Scudder, with Personal Reminiscences
Vol 18, Page 187, Date 1911
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Synonymical, and other notes on the Tipulidae (Diptera)
Vol 18, Page 192, Date 1911
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Book Review
Vol 18, Page 209, Date 1911
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New North American Diptera
Vol 19, Page 1, Date 1912
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Four New Myrmecophilous Coleoptera
Vol 19, Page 9, Date 1912
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A New Proscopiid Grasshopper From Peru
Vol 19, Page 12, Date 1912
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On the Early Stages of Certain Geometrid Species
Vol 19, Page 14, Date 1912
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A New Species of Pselliopus (Milyas)
Vol 19, Page 20, Date 1912
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Second International Congress of Entomology
Vol 19, Page 22, Date 1912
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The Stanford Expedition to Brazil: A New Sawfly From Brazil
Vol 19, Page 62, Date 1912
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A peculiar new crane-fly from Porto Rico (Tipulidae; Diptera)
Vol 19, Page 63, Date 1912
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Observations on Micoutalis Calva Say
Vol 19, Page 66, Date 1912
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The Period of Incubation of the Eggs Samia Cecropia
Vol 19, Page 69, Date 1912
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The Development of the Mouthparts in the Homoptera, With Observations on the Embryo of Siphanta
Vol 19, Page 77, Date 1912
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New names for some ants of the genus Formica
Vol 19, Page 90, Date 1912
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The Red-Margined Luna, a New Variety
Vol 19, Page 91, Date 1912
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On a Supernumerary Median Ocellus in Melanoplus Femur-Rubrum
Vol 19, Page 92, Date 1912
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A new species of Emesidæ from Vermont
Vol 19, Page 97, Date 1912
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Sphex Overcoming Obstacles
Vol 19, Page 100, Date 1912
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Dipterological notes
Vol 19, Page 102, Date 1912
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Coccinella Undecimpunctata Linn. In Massachusetts
Vol 19, Page 104, Date 1912
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Some Bees From Guatemala
Vol 19, Page 105, Date 1912
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Drosophila Repleta Wollaston
Vol 19, Page 106, Date 1912
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The velutinous species of the genus Chrysopilus
Vol 19, Page 108, Date 1912
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Book Notices
Vol 19, Page 110, Date 1912
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Mites Associated With the Oyster-Shell Scale ( Lepidosaphes Ulmi Linne)
Vol 19, Page 121, Date 1912
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Note on Myrmeleon Immaculatus De Geer
Vol 19, Page 134, Date 1912
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Synonymical Notes on Phoridæ
Vol 19, Page 135, Date 1912
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The Copulation of Ammophila Abbreviata
Vol 19, Page 137, Date 1912
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The Stanford Expedition to Brazil: A Protective Adaptation in a Brazilian Membracid
Vol 19, Page 145, Date 1912
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The Stanford Expedition to Brazil: The Species of the Coleopterous Family Temnochilidæ Collected on the Expedition
Vol 19, Page 147, Date 1912
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New and interesting Diptera
Vol 19, Page 151, Date 1912
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The House Fly in Its Relation to City Garbage
Vol 19, Page 156, Date 1912
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Note on a Pink Locustid
Vol 19, Page 159, Date 1912
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Additions to our knowledge of the ants of the genus Myrmecocystus Wesmael
Vol 19, Page 172, Date 1912
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The North American species of the genus Haematopota
Vol 19, Page 181, Date 1912
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Book Notice
Vol 19, Page 183, Date 1912
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An Orphan Colony of Polistes Pallipes Lepel
Vol 19, Page 184, Date 1912
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Some Experimental Observations Upon Monkeys Concerning the Transmission of Poliomyelitis Through the Agency of Stomoxys Calcitrans, a Preliminary Note
Vol 19, Page 191, Date 1912
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“Sugaring” in the Autumn
Vol 19, Iss 6, Page 195, Date 1912
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Limosina Mirabilis Collin, a Species of Borboridæ New to the United States
Vol 19, Page 199, Date 1912
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Notes on the Life-History of Corethra Albipes Johannsen
Vol 19, Page 200, Date 1912
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A new Melittobia from Queensland, Australia
Vol 19, Page 203, Date 1912
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The Male of Eciton Vagans Olivier
Vol 19, Page 206, Date 1912
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Correction
Vol 19, Page 208, Date 1912