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A new hesperid
Vol 22, Page 3, Date 1911
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A new American Sitarine beetle
Vol 22, Page 15, Date 1911
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Mallophaga from Bolivian birds
Vol 22, Page 19, Date 1911
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The tenth Pleocoma
Vol 22, Page 64, Date 1911
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Descriptions of new species of Cynipidae
Vol 22, Page 67, Date 1911
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Studies amongst the Coccinellidae, no. 2
Vol 22, Page 71, Date 1911
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Mallophaga from Californian birds
Vol 22, Page 75, Date 1911
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A new chalcidid from an oak gall.
Vol 22, Page 82, Date 1911
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Notes on Limnobia Parietina O S
Vol 22, Page 85, Date 1911
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A new Argynnis and a new Parnassius
Vol 22, Page 108, Date 1911
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Two new gall midges (Dipt.)
Vol 22, Page 109, Date 1911
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New American Cleridae, with notes on others
Vol 22, Page 115, Date 1911
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Three new Brazilian Micro-Lepidoptera
Vol 22, Page 125, Date 1911
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Endaphis Kieff. in the Americas (Dipt.)
Vol 22, Page 128, Date 1911
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Some Remarks on Kirby's Synonymic Catalogue of Orthoptera, Vol. III, with Additional Notes on Vols. I and II
Vol 22, Page 158, Date 1911
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A new North American moth of the family Psychidae
Vol 22, Page 193, Date 1911
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Cases of phoresie
Vol 22, Page 194, Date 1911
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The American species of Diatraea Guilding
Vol 22, Page 199, Date 1911
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A supposed occurrence of |Anagrus incarnatus| Haliday in the United States.
Vol 22, Page 207, Date 1911
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The occurrence of the mymarid genus |Anaphoidea| in England.
Vol 22, Page 215, Date 1911
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A new Gomphus (Odonata)
Vol 22, Page 221, Date 1911
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A new species of Gerris
Vol 22, Page 246, Date 1911
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Notes on Paraguayan Orthoptera, with descriptions of a new genus and four new species
Vol 22, Page 247, Date 1911
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Arrangement of the species of Dendrocoris Bergr., with the descriptions of two new species
Vol 22, Page 268, Date 1911
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Some new beetles from North Carolina, with ecological notes (Coleop.)
Vol 22, Page 273, Date 1911
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Obituary. Dr. Herman Willem van der Weele
Vol 22, Page 287, Date 1911
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Samuel Hubbard Scudder
Vol 22, Page 289, Date 1911
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A new Datana
Vol 22, Page 300, Date 1911
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Four new gall midges (Dipt.)
Vol 22, Page 301, Date 1911
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Notes on Pennsylvania Diptera, with two new species of Syrphidae
Vol 22, Page 318, Date 1911
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Notes on a few nymphs of Agrioninae (Order Odonata) of the Hagen collection
Vol 22, Page 342, Date 1911
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A new root gall-midge
Vol 22, Page 346, Date 1911
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The probable occurrence of the mymarid genus |Dicopus| Enock in North America (Hymen.).
Vol 22, Page 347, Date 1911
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Notes on two Tipulidae (Dipt.)
Vol 22, Page 349, Date 1911
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A new |Polynema| from Mexico.
Vol 22, Page 358, Date 1911
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Critical notes on some species of Mymaridae.
Vol 22, Page 363, Date 1911
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A newly-imported scale-pest on Japanese hemlock
Vol 22, Page 385, Date 1911
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New species or subspecies of North American butterflies
Vol 22, Page 412, Date 1911
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A new genus and four new species of Aphididae
Vol 22, Page 440, Date 1911
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A new flea-Ctenophthalmus heiseri spec. nov
Vol 22, Page 445, Date 1911
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A trip to Hunter's Run, Pa., July 2, 1911
Vol 22, Page 478, Date 1911