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10,301 full-text articles. Page 16 of 309.

A Checklist Of Illinois Centipedes (Chilopoda), Gerald Summers, J. A. Beatty, Nanette Magnuson 2025 University of Missouri

A Checklist Of Illinois Centipedes (Chilopoda), Gerald Summers, J. A. Beatty, Nanette Magnuson

The Great Lakes Entomologist

Records for 45 centipede species occurring in Illinois are given with a brief discussion of general habitat features and the effects of certain environmental factors on specific distribution patterns. The chilopod fauna of Illinois includes species from southeastern, western, and northern physiographic regions and represents a richer mixture of chilopod species than is found in any adjacent state.


Description And Biology Of Bumblebees (Hymenoptera: Apidae) In Michigan, Robert W. Husband, Roland L. Fischer, T. Wayne Porter 2025 Adrian College

Description And Biology Of Bumblebees (Hymenoptera: Apidae) In Michigan, Robert W. Husband, Roland L. Fischer, T. Wayne Porter

The Great Lakes Entomologist

The distribution of Michigan Bombinae was first studied by Milliron (1939). Records of Michigan bumblebees were included in Cockerell (1916) Franklin (1912). Lutz and Cockerell (1920). and Mitchell (1962). Other major studies in the Great Lakes Region were Chandler (1950) for Indiana, Medler and Carney (1%3) for Wisconsin, Husband (1966) for Michigan, Macfarlane (1974) for Ontario, LaBerge and Webb (1962) for Nebraska, Stevens (1948) for North Dakota, Frison (1926) for Illinois, and Neave (1933) for Manitoba. The purpose of this paper is to add to the information presented by Milliron (1939) and to complement the works by Chandler, Medler and …


The Biology Of The White Pine Sawfly, Neodiprion Pinetum (Hymenoptera: Diprionidae) In Wisconsin, Aunu Rauf, D. M. Benjamin 2025 University of Wisconsin

The Biology Of The White Pine Sawfly, Neodiprion Pinetum (Hymenoptera: Diprionidae) In Wisconsin, Aunu Rauf, D. M. Benjamin

The Great Lakes Entomologist

The white pine sawfly, Neodiprion pirletunl. is monophagous on eastern white pine, Pinus strobus, throughout its range in eastern North America. Localized outbreaks occur frequently, and small areas of white pine may be killed. The high population upsurge in Crawford County. Wisconsin, in 1978 was mitigated by the eulophid egg parasite, Closterocerus cinctipennis, when a mean 90.1 t 4.870 parasitization occurred. Larval parasitization in the Grant County infestation averaged 45.05%. and involved the ichneumonid, Olesicampe lophyri, the perilampid Perilamplts l~yalirllcs, and the tachinid Spathimeigenia erecta.


Validation Of A Pete Timing Model For The Oriental Fruit Moth In Michigan And Central California (Lepidoptera: Olethreutidae), B. A. Croft, M. F. Michels, R. E. Rice 2025 Michigan State University

Validation Of A Pete Timing Model For The Oriental Fruit Moth In Michigan And Central California (Lepidoptera: Olethreutidae), B. A. Croft, M. F. Michels, R. E. Rice

The Great Lakes Entomologist

PETE (Predictive Extension Timing Estimator) model output for Grapholitha molesta (Busck) was within ca. 30 ? 46 degree-days or 1.4 2 2 days of predicting 50% adult moth activity as measured by pheromone trap catches in the spring and first summer generation in both Michigan apple and California Peach orchards. In subsequent summer generations. model output was less reliable.


Instar Head Widths, Individual Biomass, And Development Rate Of Forest Tent Caterpillar, Malacosoma Disstria (Lepidoptera: Lasiocampidae), At Two Densities In The Laboratory, Jocelyn M. Muggli, William E. Miller 2025 USDA Forest Service

Instar Head Widths, Individual Biomass, And Development Rate Of Forest Tent Caterpillar, Malacosoma Disstria (Lepidoptera: Lasiocampidae), At Two Densities In The Laboratory, Jocelyn M. Muggli, William E. Miller

The Great Lakes Entomologist

Two colonies of forest tent caterpillar were reared at different densities on trembling aspen foliage in an environment chamber programmed for natural temperatures. Based on direct observation of molting, both colonies underwent five instars which overlapped negligibly in head width. Instar head widths were relatively stable between colonies, but individual biomass was sensitive to the different densities. Instars 3-5 in the less dense colony were heavier than those of the more dense by factors of 1.3-1.9. Development to 10-20% of larvae spinning cocoons took 40 days in the less dense colony and 45 days in the more dense. Size of …


Annotated List Of Trichoptera Collected Along Furnace Run Of The Cuyahoga Valley National Recreation Area In Northeastern Ohio, C. Peterson, B. A. Foote 2025 University of Georgia

Annotated List Of Trichoptera Collected Along Furnace Run Of The Cuyahoga Valley National Recreation Area In Northeastern Ohio, C. Peterson, B. A. Foote

The Great Lakes Entomologist

Information on seasonal distribution of 46 species of Trichoptera occurring along a small, unpolluted, woodland stream in northeastern Ohio is presented. Two species. Hydropsyclle hageni and Polycentroprcs interruptus, are newly recorded for the state.


Localized Field Migration Of The Adult Alfalfa Weevil, Clover Leaf Weevil, And Clover Root Curculio (Coleoptera: Curculionidae), And Its Implication For A Fall Pest Management Program, Robert D. Pausch, Stephen J. Roberts, Robert J. Barney, Edward J. Armbrust 2025 Illinois Natural History Survey

Localized Field Migration Of The Adult Alfalfa Weevil, Clover Leaf Weevil, And Clover Root Curculio (Coleoptera: Curculionidae), And Its Implication For A Fall Pest Management Program, Robert D. Pausch, Stephen J. Roberts, Robert J. Barney, Edward J. Armbrust

The Great Lakes Entomologist

The migration of the alfalfa weevil, clover leaf weevil and clover root curculio from aestivation sites into adjacent alfalfa fields was monitored with several different trapping systems. It was found that the initial dispersal back into alfalfa fields following aestivation was a slow gradual movement across the soil surface with flight occurring only after the insects had been in the alfalfa for several days.


Observations On The Biology Of The Slender Seedcorn Beetle, Clivina Impressifrons (Coleoptera: Carabidae), Robert D. Pausch, Lois M. Pausch 2025 Illinois Natural History Survey

Observations On The Biology Of The Slender Seedcorn Beetle, Clivina Impressifrons (Coleoptera: Carabidae), Robert D. Pausch, Lois M. Pausch

The Great Lakes Entomologist

The slender seedcorn beetle, Clirina impressijirons, is known to attack germinating corn seed, but field and laboratory studies of its life history indicate it may sometimes play a beneficial role. Feeding studies show that adults and larvae are primarily carnivorous but will feed on corn seed when their primary food is absent or in short supply. Certain behavioral aspects indicate that populations of this beetle might be attracted to selected agricultural areas where adults and larvae could serve as predators of soil pests of corn. Much of the activity of these beetles is governed by temperature. with low temperatures below …


Mixed Species Feeding Assemblages Of Planthopper Nymphs (Homoptera: Fulgoroidea), S. W. Wilson, J. E. McPherson 2025 California State University, Chico

Mixed Species Feeding Assemblages Of Planthopper Nymphs (Homoptera: Fulgoroidea), S. W. Wilson, J. E. Mcpherson

The Great Lakes Entomologist

The occurrence of four species of southern Illinois fulgoroids in mixed species feeding assemblages is reported.


Seasonal Flight Patterns Of Hemiptera In A North Carolina Black Walnut Plantation. 1. Pentatomoidea, J. E. McPherson, B. C. Weber 2025 Southern Illinois University

Seasonal Flight Patterns Of Hemiptera In A North Carolina Black Walnut Plantation. 1. Pentatomoidea, J. E. Mcpherson, B. C. Weber

The Great Lakes Entomologist

The seasonal flight patterns of 35 species and subspecies of Pentatomoidea collected in window traps in a North Carolina black walnut plantation are discussed. Flying height distributions and seasonal activities of the five species that were most frequently collected (i.e., Amnestus basidentatus, A. pallidus, A. spinifrons, Brochymena qltadripustulata and Euschistus servus) are considered in detail.


Reproductive Natural History Of The American Grass Mantid, Thesprotia Graminis, Bridget N. Battaglia, Charles Watson 2025 Texas A&M University-San Antonio

Reproductive Natural History Of The American Grass Mantid, Thesprotia Graminis, Bridget N. Battaglia, Charles Watson

Masters Theses (Archived)

The American grass mantis, Thesprotia graminis, is an understudied mantis native to Texas, including the campus of Texas A&M-SA. Mantids are influential members of ecosystems as a major predator of small insects. Therefore, measuring elements of their natural history, such as maternal investment, timing of oviposition, and fecundity, will add to our understanding of this specie’s ecology in grassland communities. In controlled lab conditions, we measured the mass of every instar, mantids of both sexes, and the masses of oothecas (egg cases) pre- and post-hatch. Interestingly, we found that this species lays multiple, smaller oothecas throughout the reproductive season. …


Lethal And Sublethal Effects Of Cotton Expressing Single And Pyramided Proteins Of Bacillus Thuringiensis (Bt) On Helicoverpa Armigera (Lepidoptera: Noctuidae), Spodoptera Litura (Lepidoptera: Noctuidae), And Spodoptera Frugiperda (Lepidoptera: Noctuidae), Sharna Holman, Paul Grundy, Helen Spafford, Michael Furlong 2025 Queensland Department of Primary Industries

Lethal And Sublethal Effects Of Cotton Expressing Single And Pyramided Proteins Of Bacillus Thuringiensis (Bt) On Helicoverpa Armigera (Lepidoptera: Noctuidae), Spodoptera Litura (Lepidoptera: Noctuidae), And Spodoptera Frugiperda (Lepidoptera: Noctuidae), Sharna Holman, Paul Grundy, Helen Spafford, Michael Furlong

Grain and Other Field Crops Research Articles

The susceptibility to proteins from Bacillus thuringiensis (Bt) can vary among lepidopteran pest species. While Bollgard 3 cotton (BG3) effectively controls the primary pest Helicoverpa armigera (Hübner) in Australia, its effectiveness against other pests, such as Spodoptera litura (Fabricius) and Spodoptera frugiperda (J. E. Smith), is unknown. This laboratory study assessed the survival and development of H. armigera, S. litura, and S. frugiperda larvae when fed foliage from a non-transgenic cotton variety (CC) and 3 transgenic cotton varieties: Bollgard (BG1) expressing Cry1Ac, Bollgard II (BG2) expressing Cry1Ac and Cry2Ab, and Bollgard 3 (BG3) expressing Cry1Ac, Cry2Ab, and Vip3A. Pyramided …


Correction To The Key (Page 92) Of Description Of The Nymph Of Ophiogomphus Smithi (Odonata: Gomphidae), With A Key To The Species Of Ophiogomphus In The Western Great Lakes Region Tgle 49(1&2): 78–97, William A. Smith, Kenneth J. Tennessen 2025 Valparaiso University

Correction To The Key (Page 92) Of Description Of The Nymph Of Ophiogomphus Smithi (Odonata: Gomphidae), With A Key To The Species Of Ophiogomphus In The Western Great Lakes Region Tgle 49(1&2): 78–97, William A. Smith, Kenneth J. Tennessen

The Great Lakes Entomologist

[excerpt]

In our paper describing the nymph of Ophiogomphus smithi (TGLE, vol. 49, pages 78–97), we characterized Ophiogomphus howei in couplet 1 of the Primary Key (p. 92) as “Head W [width] greater than maximum abdomen W”. The statement was based on our misinterpretation of data reported online.


Phyllopalpus Pulchellus Uhler, The Handsome Trig (Orthoptera: Gryllidae), A Confirmed Michigan Resident, Mark F. O'Brien, Julie A. Craves 2025 University of Michigan

Phyllopalpus Pulchellus Uhler, The Handsome Trig (Orthoptera: Gryllidae), A Confirmed Michigan Resident, Mark F. O'Brien, Julie A. Craves

The Great Lakes Entomologist

[excerpt]

Phyllopalpus pulchellus Uhler is a member of the Trigonidiinae, also called trigs, sword-tail crickets (Capinera et al. 2004), or more informally, bush crickets; the common name is the Handsome Trig or Red-headed Bush Cricket. The distinctive features of this small cricket (less than 15 mm)—the large black palps, light yellow legs, shiny black wings, and red pronotum and head—are not seen in any other crickets within its range. The Handsome Trig can be found throughout much of the U.S. east of extreme east Texas and south of approximately 41.5° latitude, just south of the Michigan state border (Walker 2003).


Xiphydria Prolongata (Hymenoptera: Xiphydriidae): First North American Hosts And State Records For Connecticut And New York, Chris T. Maier, David R. Smith 2025 Connecticut Agricultural Experiment Station

Xiphydria Prolongata (Hymenoptera: Xiphydriidae): First North American Hosts And State Records For Connecticut And New York, Chris T. Maier, David R. Smith

The Great Lakes Entomologist

Adults of the Eurasian sawfly, Xiphydria prolongata (Geoffroy) (Hymenoptera: Xiphydriidae), were reared from Salix nigra Marshall in Connecticut and from Salix alba L. in New York. These are the first reported hosts for North America, and the collecting localities represent the first state records.


Assessing The Contribution Of Geography And Host Use To Genetic Structure In New York Populations Of The Parasitoid Wasp, Aphidius Ervi, Haley J. Plasman, David M. Althoff 2025 Syracuse University

Assessing The Contribution Of Geography And Host Use To Genetic Structure In New York Populations Of The Parasitoid Wasp, Aphidius Ervi, Haley J. Plasman, David M. Althoff

The Great Lakes Entomologist

Host-associated differentiation (HAD) been proposed as a general mechanism for differentiation of many groups of parasitic organisms including plant-feeding insects and their natural enemies. In particular, parasitoid wasps that attack herbivorous insects have many life habits similar to other parasitic taxa, suggesting that HAD also may be important in differentiation. We tested for the population genetic signature of HAD in a parasitoid wasp, Aphidius ervi (Haliday), a biocontrol agent that uses many species of aphids throughout Europe, but is mainly limited to the clover and alfalfa host-races of the pea aphid Acyrthosiphon pisum (Harris) in North America. We assessed allelic …


Sirex Nigricornis (Hymenoptera: Siricidae) Oviposition Preference And Development In Relation To Host Age, And A Novel Live-Trapping System For Wood-Borers, Jessica A. Hartshorn, Larry D. Galligan, Ace J.W. Lynn-Miller, Fred M. Stephen 2025 University of Arkansas

Sirex Nigricornis (Hymenoptera: Siricidae) Oviposition Preference And Development In Relation To Host Age, And A Novel Live-Trapping System For Wood-Borers, Jessica A. Hartshorn, Larry D. Galligan, Ace J.W. Lynn-Miller, Fred M. Stephen

The Great Lakes Entomologist

Sirex nigricornis F. (Hymenoptera: Siricidae) is a pine-inhabiting woodwasp native to eastern North America. A non-native congener, S. noctilio F., was discovered along the southeastern shore of Lake Ontario in New York in 2004 and its current distribution now includes seven northeastern states, Ontario, and Quebec. Its discovery led to a sharp increase in research focusing on S. noctilio as well as S. nigricornis. Research on these two species, and their associates, requires efficient methods for field collection and laboratory rearing. Success of these programs relies on successful collection of, and oviposition by, live females in artificial conditions. Moisture content …


Gallery Characteristics And Life History Of The Ambrosia Beetle Anisandrus Obesus (Coleoptera: Curculionidae: Scolytinae) In Big Tooth Aspen, Steven Cassar, Richard Roeper, Robert Beck, Todd Pomeroy, Mark Bruce 2025 Alma College

Gallery Characteristics And Life History Of The Ambrosia Beetle Anisandrus Obesus (Coleoptera: Curculionidae: Scolytinae) In Big Tooth Aspen, Steven Cassar, Richard Roeper, Robert Beck, Todd Pomeroy, Mark Bruce

The Great Lakes Entomologist

Anisandrus obesus LeConte constructs entrance holes uniformly over the surface of Big Tooth Aspen (Populus grandidenta Michx.) in April each year. An individual female bores a single entrance tunnel about 7 mm into the sapwood and then two lateral tunnels parallel to the surface. After symbiotic fungal growth, eggs are laid along the gallery walls by May. Three larval instars consume the beetle’s symbiotic fungus and do not expand the gallery. Pupae develop through June with progeny adults appearing by mid-July. Progeny sex ratio of approximately 6 females to 1 male was observed. Progeny adults overwinter within the parental gallery; …


Attraction Of Diabrotica Barberi Smith And Lawrence (Coleoptera: Chrysomelidae) To Eugenol-Baited Traps In Soybean, Louis S. Hesler 2025 USDA, Agricultural Research Service

Attraction Of Diabrotica Barberi Smith And Lawrence (Coleoptera: Chrysomelidae) To Eugenol-Baited Traps In Soybean, Louis S. Hesler

The Great Lakes Entomologist

Diabrotica barberi Smith and Lawrence (the northern corn rootworm) is a native North American leaf beetle and a major pest of corn. However, adult D. barberi forage in various habitats outside of corn fields, including soybean, roadside vegetation, and prairie. Eugenol is a common floral volatile that has been shown to increase trap catch of D. barberi within corn and prairie habitat. This paper documents the first report of increased catch of D. barberi on eugenol- baited traps in soybean fields. In two successive tests, catch of D. barberi was increased eight-fold or more by baiting traps with eugenol compared …


Invertebrate Communities Associated With Three Early Phases Of A Prairie Restoration Project, Tracy R. Evans, Meredith J. Mahoney, E. D. Cashatt, Bryon W. Cross, Geert R. de Snoo, C. J.M. Musters 2025 Leiden University

Invertebrate Communities Associated With Three Early Phases Of A Prairie Restoration Project, Tracy R. Evans, Meredith J. Mahoney, E. D. Cashatt, Bryon W. Cross, Geert R. De Snoo, C. J.M. Musters

The Great Lakes Entomologist

While specific invertebrate groups have been studied in prairie restorations, there are few studies that look at terrestrial invertebrate assemblages. We surveyed invertebrates in three phases of plant restoration that were part of a larger restoration project. This cross-sectional study of invertebrate recovery at two, four and five years post-restoration shows there was no overall difference in invertebrate taxa richness and diversity between restoration phases. Overall abundance was greatest in the most recently restored area. Richness, diversity and abundance of six functional groups did not differ. The conclusion is that all phases are still characterized by pioneer invertebrate assemblages, and …


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