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Articles 691 - 720 of 1578
Full-Text Articles in Entomology
Effects Of Hybrid Poplar (Salicaceae) Clone And Phenology On Gypsy Moth (Lepidoptera: Lymantriidae) Performance In Wisconsin, James J. Kruse, Kenneth F. Raffa
Effects Of Hybrid Poplar (Salicaceae) Clone And Phenology On Gypsy Moth (Lepidoptera: Lymantriidae) Performance In Wisconsin, James J. Kruse, Kenneth F. Raffa
The Great Lakes Entomologist
Gypsy moth (Lymantria dispar) developmental interactions with two hybrid Populus species clones were studied in laboratory trials. Significant differences in larval performance were found between clones and within the same clone at different phenological states. No larvae were able to complete development on clone NM6. All gypsy moth larvae feeding on clone NC5271 survived when leafflush was synchronized with gypsy moth eclosion in early May. However, neonates feeding on NC5271 foliage in July experienced in- creased mortality. Weights of surviving gypsy moth larvae feeding on NC5271 foliage in May versus July were not significantly different.
New Records Of Stoneflies (Plecoptera) With An Annotated Checklist Of The Species For Pennsylvania, E. C. Masteller
New Records Of Stoneflies (Plecoptera) With An Annotated Checklist Of The Species For Pennsylvania, E. C. Masteller
The Great Lakes Entomologist
Original collections now record 134 species in nine families and 42 gen- era. Seventeen new state records include, Allocapnia wrayi, Alloperla caudata, Leuctra maria, Soyedina carolinensis, Tallaperla elisa, Perlesta decipiens, P. placida, Neoperla catharae, N. occipitalis, N. stewarti, Cultus decisus decisus, Isoperla francesca, I. frisoni, I. lata, I. nana, 1. slossonae, Malirekus hastatus. Five species are removed from the list of species for Pennsylvania.
Factors Affecting Abundance Of Adult Karner Blues (Lycaeides Melissa Samuelis) (Lepidoptera: Lycaenidae) In Wisconsin Surveys 1987-95, Ann B. Swengel, Scott R. Swengel
Factors Affecting Abundance Of Adult Karner Blues (Lycaeides Melissa Samuelis) (Lepidoptera: Lycaenidae) In Wisconsin Surveys 1987-95, Ann B. Swengel, Scott R. Swengel
The Great Lakes Entomologist
At 141 pine-oak barrens in central and northwestern Wisconsin, 3,702 Karner blues (Lycaeides melissa samuelis Nabokov) were found in 81.1 hr of transect surveys during spring and 6,094 individuals in 116.6 hr during summer. Adults offive other closely related lycaenids occurred with Karner blues. The percentage of Karner blue males (of sexed individuals) correlated nega- tively with advancing date within brood, exceeded 50% on peak date within brood, but showed wide variability on a given date. Karner blues occasionally occurred up to 800 m from the nearest larval host, or in tiny, isolated host stands. However, all individuals were …
New State Record For The Riffle Beetle Microcylloepus Pusillus (Coleoptera: Elmidae), J. L. Snitgen
New State Record For The Riffle Beetle Microcylloepus Pusillus (Coleoptera: Elmidae), J. L. Snitgen
The Great Lakes Entomologist
The rime beetle Microcylloepus pusillus is reported from the Upper Peninsula of Michigan, representing a new state record.
Range Extension Of Stylogomphus Albistylus (Odonata: Gomphidae) For The Upper Peninsula Of Michigan, Michael A. Kielb, Ethan Bright, Mark F. O'Brien
Range Extension Of Stylogomphus Albistylus (Odonata: Gomphidae) For The Upper Peninsula Of Michigan, Michael A. Kielb, Ethan Bright, Mark F. O'Brien
The Great Lakes Entomologist
Larvae, exuviae, and teneral adults of Stylogomphus albistylus (Hagen) were collected from Mountain Stream, within the boundaries of the Huron Mountain Club, in the Upper Peninsula of Michigan (Marquette County). This represents the first published report of this species from the Upper Peninsula of Michigan, and only the second recorded site for the state of Michigan.
Natural Enemies Of Cranberry Fruitworm, Acrobasis Vaccinii, (Lepidoptera: Pyraudae) In Michigan Highbush Blueberries, Dogulas A. Murray, Robert D. Kriegel, James W. Johnson, Angus J. Howitt
Natural Enemies Of Cranberry Fruitworm, Acrobasis Vaccinii, (Lepidoptera: Pyraudae) In Michigan Highbush Blueberries, Dogulas A. Murray, Robert D. Kriegel, James W. Johnson, Angus J. Howitt
The Great Lakes Entomologist
A two-year study was conducted in Michigan highbush blueberries to determine the complex of parasitoids attacking cranberry fruitworm, Acrobasis vaccinii. Eight parasitoid species and one fungal pathogen were collected. Parasitism of collected hosts ranged from 6.6% to 28.1%. The more common larval parasitoid encountered was Campoletis patsuiketorum (Hymenoptera: Ichneumonidae). The more common parasitoid recovered from fruitworm hibernacula was Villa lateralis (Diptera: Bombyliidae). This study documented six unreported natural enemies of cranberry fruitworm, including C. patsuiketorum; V. lateralis; Diadegma compressum (Hymenoptera: Ichneumonidae); Compsilura concinnata (Diptera: Tachinidae); Memorilla pyste (Diptera: Tachinidae); an undescribed Microtypus species (Hymenoptera: Braconidae); and a fungal pathogen, …
Oviposition By The Banded Sunflower Moth, Cochylis Hospes (Lepidoptera: Cochylidae) In Response To Helianthus Annuus Pollen, John F. Barker, Sharon Grugel
Oviposition By The Banded Sunflower Moth, Cochylis Hospes (Lepidoptera: Cochylidae) In Response To Helianthus Annuus Pollen, John F. Barker, Sharon Grugel
The Great Lakes Entomologist
Oviposition on an artificial substrate by the banded sunflower moth Cochylis hospes Walsingham was examined in response to sunflower pollen (Helianthus annuus) and sunflower pollen extract. Sunflower pollen in quantities as small as 0.2 mg significantly reduced oviposition on an artificial substrate relative to a control without pollen. Aqueous pollen extract applied to the artificial substrate significantly reduced oviposition with respect to the control substrate that was treated with solvent. Banded sunflower moths have gained some reproductive or competitive advantage by ovipositing on the bracts of sunflower and a deterrent effect of pollen could, at least in part, have had …
Laboratory Rearing Of Lycaeides Melissa Samuelis (Lepidoptera: Lycaenidae), An Endangered Butterfly In Michigan, Catherine Papp Herms, Deborah G. Mccullough, Deborah L. Miller, Leah S. Bauer, Robert A. Haack
Laboratory Rearing Of Lycaeides Melissa Samuelis (Lepidoptera: Lycaenidae), An Endangered Butterfly In Michigan, Catherine Papp Herms, Deborah G. Mccullough, Deborah L. Miller, Leah S. Bauer, Robert A. Haack
The Great Lakes Entomologist
The Karner blue butterfly (Lycaeides melissa samuelis) is listed as a federally endangered species in the United States. It occurs in oak savanna and pine barren habitats from eastern Minnesota to New Hampshire. In 1994, we successfully reared Karner blue larvae under controlled laboratory conditions for experimental purposes, and report on those rearing methods here. We collected 20 female Karner blue adults of the spring generation from two areas in Michigan, and housed them in cages in an environmental chamber at 240 -26°C for 5 days. The female butterflies produced 154 eggs, of which 72 hatched in an average of …
Observations Of Incisalia Irus (Lepidoptera: Lycaenidael In Central Wisconsin 1988-95, Ann B. Swengel
Observations Of Incisalia Irus (Lepidoptera: Lycaenidael In Central Wisconsin 1988-95, Ann B. Swengel
The Great Lakes Entomologist
In surveys conducted during 1988-95, 164 individuals of the frosted elfin (Incisalia irus) were found, 139 of them during formal transects that totaled 92.9 hr and 179.4 km of survey effort during the frosted elfin flight period. Individuals were observed between 10 May and 14 June, with maximum . t spans in a single year of 27-31 days. Peak flight occurred just before or e beginning of peak flowering of the larval host, wild lupine (Lupinus perennis), and the first spring adults of Karner blue (Lycaeides melissa samuelis), also monophagous as larvae on wild lupine. Fourteen individuals exhibited …
Polistes Dominulus (Hymenoptera: Vespidae) Found In Michigan, Timothy M. Judd, James M. Carpenter
Polistes Dominulus (Hymenoptera: Vespidae) Found In Michigan, Timothy M. Judd, James M. Carpenter
The Great Lakes Entomologist
(excerpt)
On 25 May 1995, a single foundress colony of Polistes dominulus (Christ) was discovered on a study site at Oakland University in Rochester, Michigan (Oakland County). This is the first record of Polistes dominulus in the state of Michigan.
New Records Of Five Ground Beetles From Ohio (Coleoptera: Carabidae), Foster F. Purrington, R. Chris Stanton
New Records Of Five Ground Beetles From Ohio (Coleoptera: Carabidae), Foster F. Purrington, R. Chris Stanton
The Great Lakes Entomologist
Five ground beetles (Carabidae), Carabus sylvosus, Elaphrus americanus, Cyclotrachelus incisus, Piesmus submarginatus and Amara crassispina are reported from Ohio for the first time.
A New Larval Record Of Perlinella Drymo (Plecoptera: Perlidae) For Michigan, Ethan Bright
A New Larval Record Of Perlinella Drymo (Plecoptera: Perlidae) For Michigan, Ethan Bright
The Great Lakes Entomologist
The presence of larvae of Perlinella drymo in Michigan is documented for the first time. A total of 7 individuals were collected from Iron Creek, a tributary of the River Raisin watershed located in southeastern Michigan. Gut analysis of one specimen provided evidence for a carnivorous diet. The location from which larvae were collected indicate a preference during winter for stabilized undercut banks with little or no flow and accumulated organic debris upon sand and gravel substrate.
Callibaetis Pretiosus (Ephemeroptera: Baetidae) From Pennsylvania: New Distribution Record, R. D. Waltz, James B. Munro
Callibaetis Pretiosus (Ephemeroptera: Baetidae) From Pennsylvania: New Distribution Record, R. D. Waltz, James B. Munro
The Great Lakes Entomologist
Larvae of Callibaetis pretiosus were collected from a wet-weather pool in Monroe County, Pennsylvania. This record represents a significant northward increase in the known distribution of this species which had previously been reported only from Alabama, Florida, Georgia, North CarolIna, Tennessee, Texas, and Virginia.
A Migration Study Of Stelidota Geminata (Coleoptera: Nitidulidae), Roger N. Williams, M. Sean Ellis, Dan S. Fickle, Scott T. Bloom
A Migration Study Of Stelidota Geminata (Coleoptera: Nitidulidae), Roger N. Williams, M. Sean Ellis, Dan S. Fickle, Scott T. Bloom
The Great Lakes Entomologist
The strawberry sap beetle, Stelidota geminata (Say), is a major pest of strawberries in the northeastern United States. Further knowledge of the migratory habits of this insect pest can enhance the effectiveness of pest management strategies. This nitidulid was shown to migrate from its overwintering sites to one of its primary reproductive sites, strawberry fields, in late May. The beetle population peaked in the third week in July, 1993 in the strawberry field and then gradually declined. In 1994, the peak, as well as the total population, was much greater than in 1993. Furthermore, S. geminata was concentrated in the …
Evidence Of Pre-Imaginal Overwintering Of Diamondback Moth, Plutella Xylostella (Lepidoptera: Plutellidae) In Michigan, A. B. Idris, Edward J. Grafius
Evidence Of Pre-Imaginal Overwintering Of Diamondback Moth, Plutella Xylostella (Lepidoptera: Plutellidae) In Michigan, A. B. Idris, Edward J. Grafius
The Great Lakes Entomologist
We investigated the possibility of overwintering of the diamondback moth, Plutella xylostella L., in central Michigan. In the spring of 1993, counts of immature stages on brassicaceous weeds in a field previously planted to broccoli revealed a small but significant number of late instars that could not be attributed to oviposition of immigrant moths from the southern United States. We suggest that crop debris and snow cover played an important role in sheltering the larvae, which are known to tolerate sub·freezing temperatures. There was no indication of adult survival.
Spread Of Acentria Ephemerella (Lepidoptera: Pyralidae) In Central North America, B. G. Scholtens, G. J. Balogh
Spread Of Acentria Ephemerella (Lepidoptera: Pyralidae) In Central North America, B. G. Scholtens, G. J. Balogh
The Great Lakes Entomologist
The aquatic moth, Acentria ephemerella, was first reported from North America in 1927. Recent records from widespread localities in central North America indicate that the range of this European introduction continues to expand. The moth is well established in the western Great Lakes region and is recorded west to the Missouri River valley in Iowa.
Terrestrial Isopods (Isopoda: Oniscidea) Of Wisconsin, Joan Jass, Barbara Klausmeier
Terrestrial Isopods (Isopoda: Oniscidea) Of Wisconsin, Joan Jass, Barbara Klausmeier
The Great Lakes Entomologist
Eleven species of terrestrial isopods are recorded from Wisconsin. Species treatments include morphological, habitat and life history data. Wisconsin county distribution records are presented.
Occurrence Of Libellulid Dragonflies (Odonata: Libellulidae) In Southeastern Michigan And Adjacent Essex County, Ontario, Michael A. Kielb
Occurrence Of Libellulid Dragonflies (Odonata: Libellulidae) In Southeastern Michigan And Adjacent Essex County, Ontario, Michael A. Kielb
The Great Lakes Entomologist
During 1994-1995 extensive field work was conducted in southeastern Michigan in an attempt to assess the species population and composition of libellulid dragonflies. Additional field work was conducted on dragonflies from southwestern Ontario migrating into southeastern Michigan. Comparisons were made with the species listed for this area 37 years earlier in Kormondy (1958) anticipating changes due to wetland reductions and the effects of pesticides. With one exception, all species listed in Kormondy were observed. Ad- ditionally, one species, unknown from this area as of 1958, was encountered.
Three New Food Plants And First Wisconsin Record Of Publilia Reticulata (Hemiptera: Membracidae), Andrew H. Williams
Three New Food Plants And First Wisconsin Record Of Publilia Reticulata (Hemiptera: Membracidae), Andrew H. Williams
The Great Lakes Entomologist
Publilia reticulata was found feeding on the composites Silphium perfoliatum, S. integrifolium and Ambrosia trifida at eight sites in five Wisconsin counties in 1993-1995. This is the first report of P. reticulata using these plants and of its occurrence in Wisconsin.
First County Records For Acarapis Woodi (Acari: Tarsonemidae) In Michigan, Murray Hanna, Sharon Pratt Anzaldua
First County Records For Acarapis Woodi (Acari: Tarsonemidae) In Michigan, Murray Hanna, Sharon Pratt Anzaldua
The Great Lakes Entomologist
Acarapis woodi is an internal parasite of Apis mellifera. Surveys conducted by the Michigan Department of Agriculture in years 1986-1990 produced first county records for A. woodi in 63 of the 83 counties of Michigan.
Urophora Quadrifasciata (Diptera: Tephritidae), An Introduced Seedhead Fly New To Midwestern North America, A. G. Wheeler Jr.
Urophora Quadrifasciata (Diptera: Tephritidae), An Introduced Seedhead Fly New To Midwestern North America, A. G. Wheeler Jr.
The Great Lakes Entomologist
The Old World tephritid Urophora quadrifasciata, a gall-inducing seed- head fly, was released in western and eastern North America for the biological control of knapweeds, Centaurea spp. (Asteraceae). Its establishment in the West (BC, CA, ID, MT, OR, WA) and in the East (CT, MA, MD, NH, NJ, NY, PA, RI, VA, VT, WV) has been previously reported. Collections from eastern Minnesota and western Michigan in 1995 are the first for the Northcentral region of North America.
A Michigan Record For Clytus Marginicollis (Coleoptera: Cerambycidae: Clytini), James E. Zablotny
A Michigan Record For Clytus Marginicollis (Coleoptera: Cerambycidae: Clytini), James E. Zablotny
The Great Lakes Entomologist
Clytus marginicollis Castlenau and Gory is a small, rarely collected clytine cerambycid endemic to coniferous forests of Eastern North America (Knull 1943, Linsley 1964). Gosling (1973) did not mention any records for it in his survey of Michigan cerambycids. Knull (1943) reports that this species probably occurs in Ohio but he had seen no specimens to confirm its presence.
Adult Female Mydas Clavatus (Diptera: Mydidae) Feeding On Flowers In Wisconsin, Andrew H. Williams
Adult Female Mydas Clavatus (Diptera: Mydidae) Feeding On Flowers In Wisconsin, Andrew H. Williams
The Great Lakes Entomologist
An adult female of Mydas clavatus was observed feeding on flowers. This confirms that females of this species feed as adults and that they feed on flowers. This species is reported for the first time from Wisconsin and Minnesota.
Distribution Of The Milliped Narceus Americanus Annularis (Spirobolida: Spirobolidae) In Wisconsin, Dreux J. Watermolen
Distribution Of The Milliped Narceus Americanus Annularis (Spirobolida: Spirobolidae) In Wisconsin, Dreux J. Watermolen
The Great Lakes Entomologist
(excerpt)
The spirobolid milliped Narceus americanus annularis Rafmesque 1820 is common and widespread throughout the eastern United States and Canada (Keeton 1960, Shelley 1988, Hoffman 1990). It has previously been recorded \ from Wisconsin. Cahn (1915) reported it from the Wingra Springs region in \ central Dane County, and Keeton (1960) reported it from Clark and Sauk Counties.
Economics Of Cell Partitions And Closures Produced By Passaloecus Cuspidatus (Hymenoptera: Sphecidae), John M. Fricke
Economics Of Cell Partitions And Closures Produced By Passaloecus Cuspidatus (Hymenoptera: Sphecidae), John M. Fricke
The Great Lakes Entomologist
Sphecid wasps, Passaloecus cuspidatus were observed gathering fresh pine resin (Pinus strobus) which they used for creating partitions and closures in their nests. Based upon measurements taken of the cells, and an estimate of the load carried by the wasps, the number of collecting trips made by the wasps was correlated with the quantity of resin contained within the nest partitions and closures.
A Note On The Sympatric Collection Of Chymomyza (Diptera: Drosophilidae) In Virginia's Allegheny Mountains, Henretta Trent Band
A Note On The Sympatric Collection Of Chymomyza (Diptera: Drosophilidae) In Virginia's Allegheny Mountains, Henretta Trent Band
The Great Lakes Entomologist
The attraction of two Chymomyza species, C. procnemoides and C. aldrichii, to the same damaged tree over 19 days in summer 1987 near Mt. Lake Hotel, Giles Co., Virginia is documented, confirming a previous report that Chymomyza species may be sympatric on the same fresh damaged tree/cut wood. A total of 17 males and 7 females were captured. An excess of males to females captured has been reported in Japan and Hungary.
Slaterobius Insignis (Heteroptera: Lygaeidae): Association With Granite Ledges And Outcrops In Minnesota, A. G. Wheeler Jr.
Slaterobius Insignis (Heteroptera: Lygaeidae): Association With Granite Ledges And Outcrops In Minnesota, A. G. Wheeler Jr.
The Great Lakes Entomologist
Adults and late-instar nymphs of the wide-ranging myrmecomorphic lygaeid Slaterobius insignis were collected in northern Minnesota from cracks of granite outcrops and ledges, a habitat differing somewhat from that reported elsewhere. At two of the four sites, S. insignis was observed in plant-and litter-filled cracks with nymphs of the lygaeid Trapezonotus arenarius. All adults of the polymorphic S. insignis observed on granite were brachypters that belonged to the dark color morph of the species. Individuals occurred on rock surfaces with a black ant, Formica subsericea, which they resembled in appearance and behavior.
An Allometric Study Of The Boxelder Bug, Boisea Trivittata (Heteroptera: Rhopalidae), Scott M. Bouldrey, Karin A. Grimnes
An Allometric Study Of The Boxelder Bug, Boisea Trivittata (Heteroptera: Rhopalidae), Scott M. Bouldrey, Karin A. Grimnes
The Great Lakes Entomologist
An allometric study was conducted on the boxelder bug, Boisea trivittata, to confirm the number ofinstars and to identify characteristics most useful for rapid instar identification of field samples. Analysis of field populations collected throughout the 1990-92 seasons indicated that there were five instars, clearly defined on the basis of size and the presence of wing pads. This finding is in contrast with the only other published study on stages of the boxelder bug, which claims there are six nymphal instars.
Size data gathered from field populations were substantiated by laboratory growth studies. Head width and/or second antennal segment …
Parasitism Of Plathypena Scabra (Lepidoptera: Noctuidae) By Sinophorus Teratis (Hymenoptera: Ichneumonidae), Daniel M. Pavuk, Charles E. Williams, Douglas H. Taylor
Parasitism Of Plathypena Scabra (Lepidoptera: Noctuidae) By Sinophorus Teratis (Hymenoptera: Ichneumonidae), Daniel M. Pavuk, Charles E. Williams, Douglas H. Taylor
The Great Lakes Entomologist
(excerpt)
A study was conducted at the Ecology Research Center, Miami University, Butler County, Ohio, during the summer of 1990 to examine the effects of strip intercropping sorghum and soybean on the occurrence of parasitoids and incidence of disease in larvae ofthe green cloverworm, Plathypena scabra (F.) (Lepidoptera: Noctuidae), a sporadic pest of soybeans. The details of the experimental design and results are reported elsewhere (Williams et al. 1995).
Temperature Effects On Development Of Three Cereal Aphid Parasitoids (Hymenoptera: Aphidiidae), N. C. Elliot, J. D. Burd, S. D. Kindler, J. H. Lee
Temperature Effects On Development Of Three Cereal Aphid Parasitoids (Hymenoptera: Aphidiidae), N. C. Elliot, J. D. Burd, S. D. Kindler, J. H. Lee
The Great Lakes Entomologist
Temperature is an important climatological variable that influences the biology and ecology of insects. Poor climatic adaptation can limit the effectiveness of parasitic insects in biological control. Two exotic parasites (Syrian Diaeretiella rapae (M'Intosh) and Argentinean Aphidius colemani Viereck) imported for biological control of the Russian wheat aphid, Diuraphis noxia (Mordvilko), and one native parasite (Diaeretiella rapae) were reared in growth chambers in three fluctuating temperature regimes with average daily temperatures of 12, 18, and 24°C. Estimates of temperature thresholds for immature development were 3.3, 3.5, and 2.8°C, for Oklahoman D. rapae, Syrian D. rapae, and …