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Front Matter, Vol. 37 No. 4

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Population dynamics of the Ferruginous Hawk during a prey decline
Neil D. Woffinden and Joseph R. Murphy

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A new species of Rhopalomyia (Diptera: Cecidomyiidae) from Artemisia ludoviciana Nuttall (Compositae) in Utah
Raymond J. Gagne

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Bionomics of a subterranean gall midge (Diptera: Cecidomyiidae) from Artemisia ludoviciana
M. A. S. K. Ranasinghe

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The alpine butterflies of Castle Peak, Nevada County, California
Arthur M. Shapiro

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Geographic variation in Contopus sordidulus and C. virens north of Mexico
M. Ralph Browning

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Distributional patterns of mammals in Utah
David M. Armstrong

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A new fossil sponge from the Ordovician Garden City limestone of southeastern Idaho
J. Keith Rigby and James K. Gilland

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Host-induced morphological variations in the strigeoid trematode Posthodiplostomum minimum (Trematoda: Diplostomatidae). IV. Organs of reproduction (ovary and testes), vitelline gland, and egg
James R. Palmieri

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A survey of breeding and migratory birds southwest of Farmington, New Mexico
Duane A. Tolle

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A new monotypic genus of chiggers and four new species of Quadraseta from Venezuela (Acari: Trombiculidae)
M. L. Goff and J. M. Brennan

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A new name for Galium scabriusculum (Rubiaceae) of Utah
Lauramay T. Dempster and Friedrich Ehrendorfer

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New synonymy and new species of American bark beetles (Coleoptera: Scolytidae), Part VI
Stephen L. Wood

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Nectar-sugar concentrations and flower visitors in the western Great Basin
Larry J. Gut, Robert A. Schlising, and Carol E. Stopher

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New grass distribution records for New Mexico and the United States
Stephan L. Hatch

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Stilt Sandpiper and Hudsonian Godwit in Nevada
C. S. Lawson

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Index [and Table of Contents] to Volume 37

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End Matter, Vol. 37 No. 4

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Full Issue, Vol. 37 No. 4