Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

165704 Full-Text Articles 193702 Authors 28097703 Downloads 363 Institutions

All Articles in Life Sciences

Faceted Search

165704 full-text articles. Page 5 of 3905.

A History Of The Eastern Larch Beetle, Dendroctonus Simplex (Coleoptera: Scolytidae), In North America, D. W. Langor, A. G. Raske 2017 University of Alberta

A History Of The Eastern Larch Beetle, Dendroctonus Simplex (Coleoptera: Scolytidae), In North America, D. W. Langor, A. G. Raske

The Great Lakes Entomologist

The eastern larch beetle, Dendroctonus simplex, is reputedly a secondary pest but may attack and kill tamarack and ornamental larches throughout Canada, the northeastern United Stales, and Alaska. Isolated infestations of this pest have been reported for over 100 years. The first recorded widespread outbreaks of D. simplex started in eastern Canada and the northeastern United States as well as in Alaska in the mid-1970s. During the outbreak in the Atlantic provinces, in excess of 1.4 million m3 of tamarack was killed. No damage estimates are available for Quebec and the United States. Insect defoliators were the most common ...


Effect Of Selecting Cereal Leaf Beetle (Coleoptera: Chrysomelidae) Males By Age And Feeding Behavior On Nondiapause Progeny, S. G. Wellso, R. P. Hoxie 2017 Purdue University

Effect Of Selecting Cereal Leaf Beetle (Coleoptera: Chrysomelidae) Males By Age And Feeding Behavior On Nondiapause Progeny, S. G. Wellso, R. P. Hoxie

The Great Lakes Entomologist

In a nondiapause culture of cereal leaf beetles, Oulema melanopus (Coleoptera: Chrysomelidae), females ovipositing within 20 days after emergence were considered nondiapause. However, sexually active males in the same generation could be nondiapause or prediapause. Changes in the nondiapause incidence were compared between progenies from> 15 day old males that were feeding actively and photopositive (considered 'nondiapause' males) and progenies from younger males (nonselected males). Nondiapause females increased by 19% (n = 35 generations) and decreased 22% (n 31 generations) in the progenies of 'nondiapause' and nonselected males, respectively, suggesting that nondiapause males were selected in the former group, but prediapause ...


The Insects Of Treeholes Of Northern Indiana With Special Reference To Megaselia Scalaris (Diptera: Phoridae) And Spilomyia Longicornis (Diptera: Syrphidae), Robert S. Copeland 2017 University of Notre Dame

The Insects Of Treeholes Of Northern Indiana With Special Reference To Megaselia Scalaris (Diptera: Phoridae) And Spilomyia Longicornis (Diptera: Syrphidae), Robert S. Copeland

The Great Lakes Entomologist

The aquatic insect community of treeholes in northern Indiana was surveyed from 1983-1986. Twenty-three species, representing three orders and nine families, were found. Megaselia scalaris (Diptera: Phoridae) was collected on several occasions from rotholes, the first member of this family from treeholes. Examination of puparia of Spilomyia longicornis (Diptera: Syrphidae) indicated that the larva of this species has been previously described, but incorrectly associated with the genus Xylata.


Sampling Technique For Larvae Of The Alfalfa Snout Beetle, Otiorhynchus Ligustici (Coleoptera: Curculionidae), D. G. Harcourt, M. R. Binns 2017 Agriculture Canada

Sampling Technique For Larvae Of The Alfalfa Snout Beetle, Otiorhynchus Ligustici (Coleoptera: Curculionidae), D. G. Harcourt, M. R. Binns

The Great Lakes Entomologist

This paper presents a sampling procedure for estimating larval populations of the alfalfa snout beetle, Otiorhynchus ligustici. The method is based on counts of the larvae taken in 16 x 16 cm quadrats of soil during early fall when the grubs are in their final two instars and feeding just below the crowns of the plant. Analysis of sampling variability showed that 200 quadrats per field are necessary to obtain adequate precision for intensive population studies but that 50 quadrats are sufficient for survey work. The pattern of counts was overdispersed but conformed to the negative binomial distribution.


Lepidoptera Recorded From The Islands Of Western Lake Erie, With A Brief Account Of Geology And Flora, Brian A. Nault, Roy W. Rings, David J. Horns 2017 University of Georgia

Lepidoptera Recorded From The Islands Of Western Lake Erie, With A Brief Account Of Geology And Flora, Brian A. Nault, Roy W. Rings, David J. Horns

The Great Lakes Entomologist

A list of Lepidoptera from the islands of western Lake Erie is presented along with a brief account of the geology, flora, and human activities in the area. The checklist contains 169 species representing 27 families. Suggestions are made for the improvement of this preliminary checklist as well as for future research.


Ground Beetles From A Remnant Oak-Maple-Beech Forest And Its Surroundings In Northeastern Ohio (Coleoptera: Carabidae), Foster F. Purrington, John E. Bater, Maurizio G. Paoletti, Benjamin R. Stinner 2017 Ohio Agricultural Research and Development Center

Ground Beetles From A Remnant Oak-Maple-Beech Forest And Its Surroundings In Northeastern Ohio (Coleoptera: Carabidae), Foster F. Purrington, John E. Bater, Maurizio G. Paoletti, Benjamin R. Stinner

The Great Lakes Entomologist

We report 66 ground beetle species in 14 tribes from a natural preserve in northeastern Ohio (Stark County). Six species are new state records. Data from pitfall trap transects across adjoining habitats suggest narrow habitat preferences in some species and broad tolerances in others.

Trends toward flightlessness in forest species and macroptery in the fauna of disturbed agricultural sites are apparent.


New State Records Of Bembecine Sand Wasps In Michigan (Hymenoptera: Sphecidae: Bembecinae), Mark F. O'Brien 2017 University of Michigan

New State Records Of Bembecine Sand Wasps In Michigan (Hymenoptera: Sphecidae: Bembecinae), Mark F. O'Brien

The Great Lakes Entomologist

Two species of Sphecidae in the tribe Stictiellini, Glenostictia pictifrons and Stictiella emarginata, are reported from Michigan for the first time.


Occurrence Of Pomerantzia Kethleyi (Acari: Prostigmata: Pomerantziidae) In Illinois And Minnesota, J. Kethley 2017 Field Museum of Natural History

Occurrence Of Pomerantzia Kethleyi (Acari: Prostigmata: Pomerantziidae) In Illinois And Minnesota, J. Kethley

The Great Lakes Entomologist

The soil mite Pomerantzia kethleyi, is recorded from Illinois and Minnesota for the first time. The microhabitat of the Minnesota site is the first record of a pomerantziid from coarse sand-gravel near the surface.


Coreopsis Tinctoria: An Unrecorded Host Plant Of Adult Calligrapha Callfornica Coreopsivora (Coleoptera: Chrysomelidae), Charles E. Williams 2017 Virginia Polytechnic Institute and State University

Coreopsis Tinctoria: An Unrecorded Host Plant Of Adult Calligrapha Callfornica Coreopsivora (Coleoptera: Chrysomelidae), Charles E. Williams

The Great Lakes Entomologist

Adults of Calligrapha californica coreopsivora are recorded feeding upon cultivated Coreopsis tinctoria in southwestern Virginia. Coreopsis tinctoria is an unrecorded host plant of this beetle.


Annotated Records Of Species Of Pentatomoidea (Hemiptera) Collected At Lights, J. E. McPherson, R. W. Sites 2017 Southern Illinois University

Annotated Records Of Species Of Pentatomoidea (Hemiptera) Collected At Lights, J. E. Mcpherson, R. W. Sites

The Great Lakes Entomologist

Records of specimens of Pentatomoidea collected at various light sources in Alabama, Arizona, Florida, Georgia, Illinois, Louisiana, and Texas are presented. Of the 51 species and subspecies reported, about 75% belong to the Pentatomidae.


Systematics, Ecology And Host Associations Of Naiadacarus (Acari: Acaridae) In The Great Lakes Region, Barry M. OConnor 2017 University of Michigan

Systematics, Ecology And Host Associations Of Naiadacarus (Acari: Acaridae) In The Great Lakes Region, Barry M. Oconnor

The Great Lakes Entomologist

Naiadacarus arboricola Fashing, is reported from adults collected from water-filled treeholes and deutonymphs phoretic on Mallota species, Eristalis bardus and Somula decora (Diptera: Syrphidae) from Michigan, Illinois, and New York. Naiadacarus fashingi, new species, is described from deutonymphs phoretic on Brachypalpus oarus and seven other species of Syrphidae from Michigan, New York and New Jersey. Naiadacarus mydophilus, new species, is described from deutonymphs phoretic on Brachypalpus oarus from Michigan. Based upon known biologies of host insects and other mite species which utilize these hosts, it is hypothesized that N. lashingi and N. mydophilus may inhabit wet decaying wood andior moist ...


Ecology, Mating And Nesting Of Tachypompilus Ferrugineus Nigrescens (Hymenoptera: Pompilidae), Frank E. Kurczewski 2017 State University of New York College of Environmental Science and Forestry

Ecology, Mating And Nesting Of Tachypompilus Ferrugineus Nigrescens (Hymenoptera: Pompilidae), Frank E. Kurczewski

The Great Lakes Entomologist

An aggregation of Tachypompilus Jerrugineus nigrescens was studied during mid­ summer 1988 in Syracuse, NY. Wasp activity was focused on a 2 m high cemetery monument near a gravelly roadway. Males perched on thc stone, chased one another and pursued incoming females in flight. Details of mating are described. Both sexes spent the night and periods of inclement weather inside a narrow crevice near the base of the monument. Females flew around the monument, landed frequently and made exploratory walks inside of the crevice. They were observed searching for prey and transporting paralyzed spiders backward on the ground. Seven conical ...


Observations On The Nesting Behavior Of Auplopus Caerulescens Subcorticalis And Other Auplopodini (Hymenoptera: Pompilidae), Frank E. Kurczewski 2017 State University of New York College of Environmental Science and Forestry

Observations On The Nesting Behavior Of Auplopus Caerulescens Subcorticalis And Other Auplopodini (Hymenoptera: Pompilidae), Frank E. Kurczewski

The Great Lakes Entomologist

Nest searching and mud and prey transport behavior in a small aggregation of Auplopus caerulescens subcorticalis nesting in a concrete cellar foundation in upstate New York are delineated. The contents of nine cells of this subspecies are identified, the mud cells and wasps' eggs are described and measured and the site of the egg attachment on the spider is defined. Selectivity in prey capture at the family level by certain females was indicated, with Thomisidae reported as a new prey family. The method of prey transport and a new prey family (Clubionidae) for Auplopus mellipes variitarsatus are given. Two prey ...


Effects Of Corn And Selected Weed Species On Feeding Behavior Of The Stalk Borer, Papaipema Nebris (Lepidoptera: Noctuidae), Leticia J. Alvarado, David B. Hogg, John L. Wedberg 2017 University of Wisconsin

Effects Of Corn And Selected Weed Species On Feeding Behavior Of The Stalk Borer, Papaipema Nebris (Lepidoptera: Noctuidae), Leticia J. Alvarado, David B. Hogg, John L. Wedberg

The Great Lakes Entomologist

Experiments were conducted in an outdoor insectary to examine behavioral interactions between fifth instar stalk borers, Papaiperna nebris, and potential host plant species. Plants tested included 6- and 8-leaf stage corn, Zea mays, and ten weed species (six broadleaf and four grass) commonly associated with corn production in southern Wisconsin. Broadleaf plants found to be acceptable hosts included Ambrosia trifida, Arnaranthus retroflexus, Rumex crispus, and Chenopodium album; Asclepias syriaca and Abutilon theophrasti were not acceptable as host plants. Corn and the other grass species (Agropyron repens, Bromus inermis, Dactylis glomerata, and Setaria faberi) were found to be acceptable hosts. All ...


Response Of Saddled Prominent (Lepidoptera: Notodontidae) Pupae To Desiccation, Cold Treatment, And Post-Cold Treatment Incubation Temperature, Peter J. Martinat, Douglas C. Allen 2017 Abbot Labratories

Response Of Saddled Prominent (Lepidoptera: Notodontidae) Pupae To Desiccation, Cold Treatment, And Post-Cold Treatment Incubation Temperature, Peter J. Martinat, Douglas C. Allen

The Great Lakes Entomologist

Saddled prominent, Heterocampa guttivitta, pupae were placed at 1.5oC for 50 to 200 days, then incubated at one of four post-cold temperatures ranging from 10° to 26.7°C. Adults emerged from pupae exposed to all cold treatment periods. A few adults also emerged from pupae that were not exposed to cold. The time required for adult emergence following cold treatment declined with longer periods of cold treatment and higher post-cold incubation temperature. The interaction between these two main effects was also significant. Adult morphogenesis begins immediately after pupation, and continues until interrupted by cold temperature. When pupae were ...


A New Location For Valgus Hemipterus (Coleoptera: Scarabaeidae), Joseph Mahar 2017 Valparaiso University

A New Location For Valgus Hemipterus (Coleoptera: Scarabaeidae), Joseph Mahar

The Great Lakes Entomologist

(excerpt)

On 12 June 1987, a live female specimen of Valgus hemipterus (L.) was collected from a car hood at a dairy farm ca. 4.8 km north of Martin, Allegan Co., Michigan.


Estimating Parasitism Of Colorado Potato Beetle Eggs, Leptinotarsa Decemlineata (Coleoptera: Chrysomelidae), By Edovum Puttleri (Hymenoptera: Eulophidae), E. Groden, F. A. Drummond, R. A. Casagrande, J. H. Lashomb 2017 University of Maine

Estimating Parasitism Of Colorado Potato Beetle Eggs, Leptinotarsa Decemlineata (Coleoptera: Chrysomelidae), By Edovum Puttleri (Hymenoptera: Eulophidae), E. Groden, F. A. Drummond, R. A. Casagrande, J. H. Lashomb

The Great Lakes Entomologist

A computer simulation was used to evaluate methods for estimating parasitism of Colorado potato beetle egg mass populations by Edovum puttleri. The algorithm incorporated the specific attack behavior of E. puttleri, and a development time for parasitized egg masses of ca. 2.9 times that of healthy egg masses. Of the methods compared, a modification of Southwood's graphical technique was found to be most accurate in relation to the true parasitism derived from the algorithm. A regression equation is presented to correct the error in this method at high levels of parasitism. A second simulation was used to test ...


Trimerotropis Huroniana (Orthoptera: Acrididae), A New Record For Wisconsin, Harvey E. Ballard Jr. 2017 The Nature Conservancy

Trimerotropis Huroniana (Orthoptera: Acrididae), A New Record For Wisconsin, Harvey E. Ballard Jr.

The Great Lakes Entomologist

(excerpt)

Trimerotropis huroniana Walker (Subfamily Oedipodinae), is a distinctive species first described by Walker (1902) from a small area of open dunes near Southampton, Ontario. Studies by Cantrall (1968), Hubbell (1929) and Otte (1984) have suggested that T. huroniana is endemic to the sand dune communities of the northern Great Lakes region.


An Annotated List Of The Orthoptera Of Beaver Island, Lake Michigan, R. G. Bland 2017 Central Michigan University

An Annotated List Of The Orthoptera Of Beaver Island, Lake Michigan, R. G. Bland

The Great Lakes Entomologist

Thirty-six species of Orthoptera were collected from Beaver Island in northern Lake Michigan. Species distribution was Tetrigidae, 4; Acrididae, 16; Tettigoniidae, 8; Gryllacrididae, 1; and Gryllidae, 7.


Late Lilac, Syringa Villosa: New Host Of The Lace Bug Leptoypha Mutica (Heteroptera: Tingidae), A. G. Wheeler Jr. 2017 Pennsylvania Department of Agriculture

Late Lilac, Syringa Villosa: New Host Of The Lace Bug Leptoypha Mutica (Heteroptera: Tingidae), A. G. Wheeler Jr.

The Great Lakes Entomologist

The lace bug Leptoypha mutica, a specialist on trees and shrubs of the Oleaceae, feeds mainly on ash, Fraxinus spp., and fringetree, Chionanthus virginicus. In July 1987 and 1988, nymphs and adults were observed on late lilac, Syringa villosa, in a landscape planting in northwestern Pennsylvania. Infested leaves showed chlorotic blotches, the damage concentrated around midribs and lateral veins. This is the first report of lilac serving as a host for a North American tingid.


Digital Commons powered by bepress