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

Entomology Commons™

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

11,476 Full-Text Articles 16,839 Authors 6,624,386 Downloads 178 Institutions

All Articles in Entomology

Faceted Search

11,476 full-text articles. Page 211 of 350.

Morphological Differentiation Between Aphis Spiraecola And Aphis Pomi (Homoptera: Aphididae), Susan E. Halbert, David J. Voegtlin 2017 University of Idaho

Morphological Differentiation Between Aphis Spiraecola And Aphis Pomi (Homoptera: Aphididae), Susan E. Halbert, David J. Voegtlin

The Great Lakes Entomologist

Aphis pomi and Aphis spiraecola, are both found on agriculturally important hosts such as apple and pear, and in trap collections. Their morphological similarity makes identification difficult. Examination of specimens of both species fom a wide geographical range demonstrated that available keys, especially those based on European material, were not always accurate for North American specimens. Data taken from North American specimens is presented and a key is provided to aid in the identification of trapped alatae preserved in alcohol as well as slide mounted alatae and apterae of these two species.


Effect Of Temperature On Development Rate And Survival Of Nomophila Nearctica (Lepidoptera: Pyralidae), Fredric D. Miller Jr., Joseph V. Maddox 2017 University of Illinois

Effect Of Temperature On Development Rate And Survival Of Nomophila Nearctica (Lepidoptera: Pyralidae), Fredric D. Miller Jr., Joseph V. Maddox

The Great Lakes Entomologist

Development of Nomophila nearctica was studied under six constant tempera- tures in controlled temperature cabinets. Developmental threshold temperatures for egg, larval, and prepupal-pupal stages were 8.9, 1l.5, and 9.2°C. The overall mean developmental threshold temperature for all stages was 9.9°C. Degree-day summa- tions, based on the above threshold temperatures, averaged 50, 304, and 181 DD for the egg, larval, and prepupal-pupal stages, respectively. Total heat units of 535 DD are required for development from oviposition to adult emergence. Head capsule measurements indicated six larval instars.


A Check List Of The Lepidoptera Of Fulton County, Ohio With Special Reference To The Moths Of Goll Woods State Nature Preserve, Roy W. Rings, Eric H. Metzler, David K. Parshall 2017 Ohio State University

A Check List Of The Lepidoptera Of Fulton County, Ohio With Special Reference To The Moths Of Goll Woods State Nature Preserve, Roy W. Rings, Eric H. Metzler, David K. Parshall

The Great Lakes Entomologist

The results of a comprehensive 1988-1989 survey of the Lepidoptera in the 130 hectare Goll Woods State Nature Preserve in Fulton County, Ohio are presented. In addition many records of butterflies and skippers outside the confines of the Pre­ serve are presented for the first time. This is the fifth in a series of papers featuring the current status of lepidopterous fauna in Ohio's recreational areas. A total of 27 species of skippers, 51 species of butterflies and 394 species of moths was identified and tabulated for the county. Three species on this list are classified as endangered, Epidemia helloides, …


Range Extensions Of Three Emesine Species In North America (Heteroptera: Reduviidae), J. E. McPherson 2017 Southern Illinois University

Range Extensions Of Three Emesine Species In North America (Heteroptera: Reduviidae), J. E. Mcpherson

The Great Lakes Entomologist

The first records of Empicoris orthoneuron from Michigan, and E. winnemana and Ploiaria hirticornis from Missouri are reported. Those for E. orthoneuron and P. hirticornis represent considerable extensions of their recorded ranges.


The Parasitoid Complex Of Forest Tent Caterpillar, Malacosoma Disstria (Lepidoptera: Lasiocampidae), In Eastern Wyoming Shelterbelts, G. A. Knight, R. J. Lavigne, M. G. Pogue 2017 Department of Plant, Soil and Insect Sciences

The Parasitoid Complex Of Forest Tent Caterpillar, Malacosoma Disstria (Lepidoptera: Lasiocampidae), In Eastern Wyoming Shelterbelts, G. A. Knight, R. J. Lavigne, M. G. Pogue

The Great Lakes Entomologist

A parasitoid complex affecting the forest tent caterpillar, Malacosoma disstria, was investigated during 1978-79 in shelterbelts in eastern Wyoming. Egg parasitoids included five species: Ablerus clisiocampae, Ooencyrtus clisiocampae, Telenomus clisiocampae, Tetrastichus sp. 1 and Telenomus sp. Thirteen hymenopterous species and five dipterous species were reared from larvae and pupae of the forest tent caterpillar. The most common 5th-instar larval parasitoids were the tachinid flies, Lespesia archippivora and Archytas lateralis. Of the pupal parasitoids reared, 640/0 were Diptera and 36% were Hymenoptera. Four previously unrecorded parasitoids of M. disstria were reared: Cotesia alalantae, Macrocentrus irridescens, Pimpla sanguinipes erythropus, …


Range Extensions For Species Of Sphecidae (Hymenoptera) In The Northeastern United States, Frank E. Kurczewski, Richard C. Miller 2017 State University of New York College of Environmental Science and Forestry

Range Extensions For Species Of Sphecidae (Hymenoptera) In The Northeastern United States, Frank E. Kurczewski, Richard C. Miller

The Great Lakes Entomologist

The ranges of 10 Nearctic species of Sphecidae, Spilomena pusilla, Tachytes parvus, Solierella plenoculoides, Pison agile, Entomognathus lenapeorum, Rhopalum clavipes, Crabro hilaris, C. tenuis, Alysson conicus and Lestiphorus cockerelli, are extended in the northeastern U.S. based upon collections made in Pennsylvania and New York. The first prey record for a North American species of Lestiphorus, cockerelli, is included.


Differential Suitability Of 12 Great Lakes Tree Species For Papilio Canadensis (Lepidoptera: Papilionidae) Larval Survival And Growth, J. Mark Scriber 2017 Michigan State University

Differential Suitability Of 12 Great Lakes Tree Species For Papilio Canadensis (Lepidoptera: Papilionidae) Larval Survival And Growth, J. Mark Scriber

The Great Lakes Entomologist

Differential nutritional suitabilities of the 12 potential host plants of Papilio canadensis in the Great Lakes region of North America were determined with gravimetric techniques for penultimate and final larval instars. While leaf water content and leaf nitrogen content explain some of the variation, allelochemicals in different plants are likely to be involved in differential larval growth performances as well as mortal- ity of neonate larvae on tuliptree and spicebush. Oviposition tests using 3-choice arenas with quaking aspen, paper birch, and balsam poplar showed no strong host preferences. Factors affecting patterns of Papilio host use in the Great Lakes region …


Effects Of Soil Moisture On The Pupation Behavior Of Altica Subplicata (Coleoptera: Chrysomelidae), Kathleen M. Rickelmann, Catherine E. Bach 2017 University of Michigan

Effects Of Soil Moisture On The Pupation Behavior Of Altica Subplicata (Coleoptera: Chrysomelidae), Kathleen M. Rickelmann, Catherine E. Bach

The Great Lakes Entomologist

The effects of soil moisture on the pupation behavior of a willow flea beetle, Attica subplicata, were studied with two laboratory experiments. To test the effect of soil moisture on the number of larvae pupating and pupal survival, we set up pupation chambers filled with sand with three different soil moistures: dry, moist, and wet. The number of larvae pupating was much greater in the moist sand and wet sand treatments than in the dry sand treatment. Pupal survival, as measured by the proportion of adults successfully emerging, was greater in the moist treatment than in the wet or …


Orientation Of Hylobius Pales And Pachylobius Picivorus (Coleoptera: Curculionidae) To Visual Cues, D.W. A. Hunt, K. F. Raffa 2017 University of Wisconsin

Orientation Of Hylobius Pales And Pachylobius Picivorus (Coleoptera: Curculionidae) To Visual Cues, D.W. A. Hunt, K. F. Raffa

The Great Lakes Entomologist

Pitfall traps with above-ground silhouettes of various colors and diameters were used in field tests to evaluate the role of vision in host orientation by adult pales weevils, Hylobius pales, and pitch-eating weevils, Pachylobius picivorus. White traps (11 em outer diameter) baited with ethanol and turpentine caught significantly more weevils than similarly baited black or green traps (11 cm outer diameter). Trap diameter (range of 6-22 cm outer diameter) did not affect trap catch. Pitfall traps can be used to monitor root weevil populations in young pine plantations and Christmas tree farms, where they are major pests. These …


New Lepidoptera-Parasitoid Associations In Weedy Corn Plantings: A Potential Alternate Host For Ostrinia Nubilalis (Lepidoptera: Pyralidae) Parasitoids, Daniel M. Pavuk, Benjamin R. Stinner 2017 Ohio State University

New Lepidoptera-Parasitoid Associations In Weedy Corn Plantings: A Potential Alternate Host For Ostrinia Nubilalis (Lepidoptera: Pyralidae) Parasitoids, Daniel M. Pavuk, Benjamin R. Stinner

The Great Lakes Entomologist

Larvae of the common sooty wing, Pholisora catullus, and pupae of the yellow-collared scape moth, Cisseps Fulvicollis, were collected in corn plantings containing different manipulated, indigenous weed communities to determine if these Lepidoptera had parasitoid species in common with the European corn borer, Ostrinia nubilalis. Pholisora catullus larvae were collected from lambsquarter, Chenopodium album, and redroot pigweed, Amaranthus retroflexus, whereas pupae of C. Julvicollis were obtained from corn. Four parasitoid species were reared from P. catulIus: Cotesia pholisorae, Oncophanes americanu (Hymenoptera: Braconidae), Gambrus ultimus, and Sinophorus albipalpus (Hymenoptera: Ichneumonidae). Of these, O. americanus and …


Host Plants And Habitats Of The Baltimore Checkerspot Butterfly, Euphydryas Phaeton (Lepidoptera: Nymphalidae), In The Great Lakes Region, Brian G. Scholtens 2017 University of Michigan

Host Plants And Habitats Of The Baltimore Checkerspot Butterfly, Euphydryas Phaeton (Lepidoptera: Nymphalidae), In The Great Lakes Region, Brian G. Scholtens

The Great Lakes Entomologist

The habitats and host plants of Euphydryas phaeton in the Great Lakes region are examined using data from several different populations spread over much of the region. The range of habitats and host plants used by this species is wider than commonly believed. While many populations are found in seasonal or permanent wetlands, others are located in dry, old fields or woodland areas. The host plants used vary with habitat, but they include all major primary hosts and many secondary hosts previously reported plus several new records. The biology of E. phaeton is shown to be similar to western Euphydryas …


Burrow Construction From The Ground Surface In Lyroda Subita (Hymenoptera: Sphecidae), Frank E. Kurczewski 2017 State University of New York College of Environmental Science and Forestry

Burrow Construction From The Ground Surface In Lyroda Subita (Hymenoptera: Sphecidae), Frank E. Kurczewski

The Great Lakes Entomologist

Plasticity in the nesting behavior of Lyroda subita, a species that renovates and then uses pre-existing burrows and other subterranean cavities for nesting sites, is illustrated by one female which apparently excavated her burrow from the ground surface. Details of burrow construction are described. Information on nest structure and dimensions and cell contents is presented.


Moths Of The Douglas Lake Region (Emmet And Cheboygan Counties), Michigan: Iv. Geometridae (Lepidoptera), Edward G. Voss 2017 University of Michigan

Moths Of The Douglas Lake Region (Emmet And Cheboygan Counties), Michigan: Iv. Geometridae (Lepidoptera), Edward G. Voss

The Great Lakes Entomologist

An account, with known flight periods indicated, of 165 species of Geometridae concludes listing of the "macrolepidoptera" from the northern tip of the Lower Peninsula of Michigan. About 44OJo of these are previously unreported for the region, and 12 species are previously unreported for Michigan in earlier lists for the state.


Auplopus Carbonarius,, A Palearctic Spider Wasp, Extends Its Range To Michigan (Hymenoptera: Pompilidae), Frank E. Kurczewski, Mark O'Brien 2017 State University of New York College of Environmental Science and Forestry

Auplopus Carbonarius,, A Palearctic Spider Wasp, Extends Its Range To Michigan (Hymenoptera: Pompilidae), Frank E. Kurczewski, Mark O'Brien

The Great Lakes Entomologist

Three females of Auplopus carbonarius, a Palearctic species detected recently in southeastern New York, were collected in a Malaise trap in Ann Arbor, Michigan, during the summer of 1988. Females of the species can be separated morphologically from those of the similar A. variolarum by the polished and essentially impunctate pygidium, dusky wings, and median clypeal tooth.


New Michigan State Record For A Sphecine Wasp, Podium Rufipes (Hymenoptera: Sphecidae), David P. Cowan 2017 Western Michigan University

New Michigan State Record For A Sphecine Wasp, Podium Rufipes (Hymenoptera: Sphecidae), David P. Cowan

The Great Lakes Entomologist

Podium rufipes, previously unrecorded from Michigan, has been found occupy- ing trap nests in the southwestern lower peninsula.


First Report Of Allonemobius Griseus And Psinidia Fenestralis In Ohio (Orthoptera: Gryllidae And Acrididae), Harvey E. Ballard Jr. 2017 Central Michigan University

First Report Of Allonemobius Griseus And Psinidia Fenestralis In Ohio (Orthoptera: Gryllidae And Acrididae), Harvey E. Ballard Jr.

The Great Lakes Entomologist

Occurrences of Allonemobius griseus and Psinidia fenestralis in Ohio are pub- lished for the first time. Apparent restriction of these species to the sand deposits of northwestern Ohio, their localized distribution in scattered, non-contiguous blow- outs, and habitat loss presently occurring from residential and commercial development nearby, are justifications provided for the formal state listing and conservation of these Orthoptera in Ohio.


Toxic Phenolic Glycosides From Populus: Physiological Adaptations Of The Western North American Tiger Swallowtail Butterfly, Papilio Rutulus (Lepidoptera: Papilionidae), J. Mark Scriber, Richard L. Lindroth, James K. Nitao 2017 Michigan State University

Toxic Phenolic Glycosides From Populus: Physiological Adaptations Of The Western North American Tiger Swallowtail Butterfly, Papilio Rutulus (Lepidoptera: Papilionidae), J. Mark Scriber, Richard L. Lindroth, James K. Nitao

The Great Lakes Entomologist

The phenolic glycosides tremulacin and salicortin found in quaking aspen, Populus tremuloides, and other members of the Salicaceae, are known to be toxic to larvae of the Eastern tiger swallowtail butterfly, Papilio glaucus, but not to the Canadian tiger swallowtail, P. canadensis. Larvae of the western tiger swallowtail, P. rutulus, were not killed nor were their growth rates suppressed when fed a mixture of tremulacin and salicortin on black cherry leaves. When the Salicaceae adapted P. rutulus penultimate instar larvae were fed a combination of the two phenolic glycosides and the esterase inhibitor (DEF S,S,S-tributylphosphorotrithioate), growth …


Screen Barriers For Reducing Interplot Movement Of Three Adult Plant Bug (Hemiptera: Miridae) Species In Small Plot Experiments, Mark S. Wipfli, John L. Wedberg, David B. Hogg 2017 Michigan State University

Screen Barriers For Reducing Interplot Movement Of Three Adult Plant Bug (Hemiptera: Miridae) Species In Small Plot Experiments, Mark S. Wipfli, John L. Wedberg, David B. Hogg

The Great Lakes Entomologist

Fiberglass screen barriers 1.2 m high were erected around small (7.3 x 3.7 m) plots of birdsfoot trefoil, Lotus corniculatus, to study the effectiveness of screen barriers in reducing adult plant bug migration into small field plots. Screened and unscreened (control) plots were sprayed with an insecticide at the onset of the experiment, and subsequent adult mirid migration into these trefoil plots was measured by sweep net samples during the following 24 day period. Combined adult Adelphocoris lineolatus, Lygus lineolaris, and Plagiognathus chrysanthemi densities were significantly lower in screened versus unscreened plots with 37070, 28010, and 23070 fewer adults …


A Descriptive Study Of The Population Dynamics Of Adult Diabrotica Virgifera Virgifera (Coleoptera: Chrysomelidae) In Artificially Infested Corn Fields, N. C. Elliott, J. J. Jackson, G. R. Sutter, D. A. Beck 2017 USDA

A Descriptive Study Of The Population Dynamics Of Adult Diabrotica Virgifera Virgifera (Coleoptera: Chrysomelidae) In Artificially Infested Corn Fields, N. C. Elliott, J. J. Jackson, G. R. Sutter, D. A. Beck

The Great Lakes Entomologist

The influence of corn plant phenology on the dynamics of adult western corn rootworm, Diabrotica virgifera virgifera, populations was studied during 1988 and 1989 in com fields artificially infested with eggs. Fifty percent of adult emergence from the soil occurred by day 194 in 1988 and day 203 in 1989. In both years, adult emergence was synchronized with corn flowering, eggs were recovered in soil samples approximately four days after reproductive females were first observed in the population, and oviposition was essentially complete about 25 days after it began. The number of reproductive female beetle-days accumulating per m2 was …


Location And Condition Of Whitemarked Tussock Moth (Lepidoptera: Lymantriidae) Cocoons In A Michigan Black Walnut Plantation, Louis F. Wilson 2017 USDA Forest Service

Location And Condition Of Whitemarked Tussock Moth (Lepidoptera: Lymantriidae) Cocoons In A Michigan Black Walnut Plantation, Louis F. Wilson

The Great Lakes Entomologist

Whitemarked tussock moth, Orgyia leucostigma, cocoons were monitored in a black walnut, Juglans nigra, plantation in Michigan from 1978 to 1981. Larvae spun cocoons on the exposed bark of the bole (29.6070), in crevices on the bole formed by pruning wounds (17.5%), beneath limbs (24.2%), and in branch crotches (28.7%). Parasites and predators destroyed 88% of the pupae in their cocoons. The tussock moth population, although moderate to high in the egg stage, decreased sufficiently in the larval stages each year to cause no more than 5010 defoliation to individual trees.


Digital Commons powered by bepress