Index Catalog // ScholarsArchive@OSU

Effects of stream restoration on macroinvertebrate communities in an Oregon Coast Range system

Creator:: Christensen, M. Jo
Abstract:: Stream-restoration projects are usually designed to improve habitat quality for fishes. These projects manipulate flow patterns, substrate distribution, and amount and placement of large woody debris. Consequently, they also affect the size and composition of the aquatic macroinvertebrate community. This research evaluates two types of fish habitat restoration: off-channel structures...
Resource Type:: Masters Thesis
Full Text:: in an Oregon Coast Range system AN ABSTRACT OF THE THESIS OF M. Jo Christensen for the degree of

A review of Sitobion, with a description and revision of a new genus (Homoptera: Aphididae)

Creator:: Jensen, Andrew S.
Resource Type:: Dissertation
Full Text:: new genus (Homoptera: Aphididae) AN ABSTRACT OF THE THESIS OF Andrew S. Jensen for the degree of

Biology of some Oregon rain bettles, Pleocoma spp., associated with fruit trees in Wasco and Hood River counties

Creator:: Ellertson, Floyd Elroy
Resource Type:: Dissertation
Full Text:: " . Possibly the typ locality 1s somewhere in El Dorado County, California, o.s Horn (30, p . 6) sto.t d he

A review of the genus Neotrombidium leonardi, 1902, with a description of two new species, and a critical re-evaluation of the family concepts within the Trombidioidea (Acarina)

Creator:: Singer, George
Abstract:: The systematics and biology of the genus Neotrombidium Leonardi are reviewed and discussed. A generic description is presented for larvae and post-larvae of Neotrombidium, together with descriptions of two new species, N. cleronyssus and N. tenebrionyssus. The biology and life history of N. tenebrionyssus are described, with notes on rearing...
Resource Type:: Dissertation
Full Text:: Description of Two New Species, and a Critical Re-Evalutaion of the Family Concepts Within The Trombidioidea

Nearctic sawflies I, the adults and larvae of the subfamily Blennocampinae (Hymenoptera: Tenthredinidae)

Creator:: Smith, David R.
Abstract:: Seventy-two species of Blennocampinae in 21 genera and six tribes are known from the Nearctic region. The adults and known larvae of all species and genera are keyed, described and illistrated. A definition of the subfamily, a review of previous work, a table of host-plant associations, and a discussion of...
Resource Type:: Dissertation
Full Text:: natural classification. Two new tribes, Ceratulini and ''Waldheimiini, and one new sub- genus

Biology of the yellowjacket parasitoid Bareogonalos canadensis (Harrington) (Hymenoptera: Trigonalyidae)

Creator:: Carmean, David
Abstract:: The known biology of Bareogonalos canadensis (Harrington) is based on literature records of six collections from three areas in the Pacific Northwest. The objective of this study was to obtain fundamental knowledge on the biology of B. canadensis, especially its distribution, abundance, and host species, as well as its potential...
Resource Type:: Masters Thesis
Full Text:: Valley and the adjacent Coast Range forest. In 1986 and 1987 B. canadensis was found in 50 of 89

The leafhopper genus Tiaja Oman (Homoptera:Cicadellidae), with a contribution to the biosystematics of the group

Creator:: Sawbridge, Jane Rosamund
Abstract:: The genus Tiaja Oman consists of eight known species of flightless leafhoppers of the subfamily Megophthalminae found along the western coast of North America between British Columbia and northern Mexico. Species occurring from the San Francisco Bay area northward are restricted to a narrow coastal zone within 1 km of...
Resource Type:: Dissertation
Full Text:: Pacific Coast from Coos County, Oregon to Santa 33 Barbara County, California (Munz, 1964). Munz (1964

Revision of the genus Platylygus (Heteroptera: Miridae)

Creator:: Equihua-Martinez, Armando
Abstract:: The genus Platylygus Van Duzee was erected in 1915 and revised by Kelton and Knight in 1970 describing 26 new species from United State and Mexico. Despite this prior revision, taxonomic problems have been encountered with the use of the keys and in the identification given the close similarity among...
Resource Type:: Dissertation
Full Text:: in 1970 describing 26 new species from United State and Mexico. Despite this prior revision

A review of the family Eviphididae (Acarina: Mesostigmata)

Creator:: Shoemake, Rodger Russell
Abstract:: A complete taxonomic review of the Family Eviphididae was made for the first time. The family was found to contain forty-nine species and five genera. The genera included were: Eviphis Berlese, Scarabaspis Womersley, Alliphis Halbert, Pelethiphis Berlese, and Thinoseius Halbert. The new species described were: Eviphis oregonensis from Deschutes County,...
Resource Type:: Dissertation
Full Text:: Halbert, Pelethiphis Berlese, and Thinoseius Halbert. The new species described were: Eviphis

Biological and morphological studies of the Scaphytopius acutus complex (Homoptera:Cicadellidae)

Creator:: Musgrave, Carol A.
Abstract:: Reinterpretation of the leafhopper tribe Scaphytopiini reveals it to be primarily a New World taxon with only limited representation in the Palearctic, Oriental and possibly Ethiopian regions. Approximately 75 species assigned to three genera are known from the United States and Canada with at least another 75 species representing an...
Resource Type:: Dissertation
Full Text:: reveals it to be primarily a New World taxon with only limited representation in the Palearctic

ScholarsArchive@OSU

Effects of stream restoration on macroinvertebrate communities in an Oregon Coast Range system

A review of Sitobion, with a description and revision of a new genus (Homoptera: Aphididae)

Biology of some Oregon rain bettles, Pleocoma spp., associated with fruit trees in Wasco and Hood River counties

A review of the genus Neotrombidium leonardi, 1902, with a description of two new species, and a critical re-evaluation of the family concepts within the Trombidioidea (Acarina)

Nearctic sawflies I, the adults and larvae of the subfamily Blennocampinae (Hymenoptera: Tenthredinidae)

Biology of the yellowjacket parasitoid Bareogonalos canadensis (Harrington) (Hymenoptera: Trigonalyidae)

The leafhopper genus Tiaja Oman (Homoptera:Cicadellidae), with a contribution to the biosystematics of the group

Revision of the genus Platylygus (Heteroptera: Miridae)

A review of the family Eviphididae (Acarina: Mesostigmata)

Biological and morphological studies of the Scaphytopius acutus complex (Homoptera:Cicadellidae)

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