bluuebunny/crossref_metadata_2025_split huggingface dataset:
A KEY TO AND NOTES ON THE GENERA OF BRACONINAE (HYMENOPTERA: BRACONIDAE) FROM AMERICA NORTH OF MEXICO WITH DESCRIPTIONS OF TWO NEW GENERA AND THREE NEW SPECIES
Authors: Quicke Donald L.J. , Sharkey Michael J. 
Published: November 2009

AbstractAn illustrated key to the genera of Braconinae from America north of Mexico is provided.Lapicida aquaticaQuicke gen.nov. and sp.nov. from Ontario and Iowa, andCompsobraconoides robustusQuicke gen.nov. and sp.nov. from Texas, Florida, and Mexico are described and illustrated.Bracon albispinaCameron is transferred toCompsobraconoidesand a key is provided to enable its separation fromCompsobraconoides rufusQuicke sp.nov.Chartobraconvan Achterberg is recorded from the New World for the first time and a new species,C.canadensisQuicke sp.nov. from Canada, is described, illustrated, and distinguished fromC.huggertivan Achterberg from Europe.SeliodusBrèthes is synonymized withBraconFabricius on the authority of C. van Achterberg. Relationships of the new genera are briefly discussed and notes are provided on all of the Nearctic genera.
A MULTIPLE-COHORT MODEL FOR SIMULATING JACK PINE BUDWORM (LEPIDOPTERA: TORTRICIDAE) DEVELOPMENT UNDER VARIABLE TEMPERATURE CONDITIONS
Authors: Lysyk T.J. 
Published: November 2009

AbstractA phenology model for jack pine budworm, Choristoneura pinus pinus Freeman, is presented. Linear and nonlinear relationships between temperature and the development of overwintering larvae, instars 2–7, and pupae are determined, as is variation in the development of each instar. The model uses as input daily maximum and minimum temperatures corrected for the effects of bark and bud microclimate and simulates the number of insects in each instar on a given calendar date. Variation in development of all stages is included. Simulations matched observed data well for north-central and northwestern Ontario in 1986, but overestimated time of development for northwestern Ontario in 1987. Simulations under low, medium, and high temperature conditions revealed that a nonlinear equation for rate of development was necessary for simulating emergence whereas linear rate equations were adequate for simulating development of the feeding instars. The combined effect of bud and bark microclimate on model performance was equal to that which resulted from the use of nonlinear developmental equations.
THE BIOGEOGRAPHY OF CANADIAN GRYLLOPTERA AND ORTHOPTERA
Authors: Vickery V.R. 
Published: November 2009

AbstractThe saltatorial orthopteroid insects did not originate in North America. Five avenues of entry were utilized in migration from other parts of the world. These were: (1) ancestral forms migrated to this region in Pangaean times when all continents formed a single land mass; (2) later in time, taxa migrated from Europe when Eurasia and North America were still joined, or later via an Atlantic land bridge; (3) ancestral forms migrated northward from the Neotropical region before the separation of the two continents or, much later, when the two continents became rejoined; (4) later arriving taxa entered North America during the Pleistocene via a Beringian land bridge; (5) some species are very recent immigrants, either because of the activities of man or by migration into Canadian territory from the south.The fossil record is very incomplete. It indicates past climatic conditions, but is of limited assistance concerning extant taxa.Pleistocene glaciation had a profound effect upon the distribution of extant species. Many species were forced to move southward to escape the advancing ice. Some species probably were eliminated. It is clear that most of the extant species have migrated northward since the recession of the Wisconsin glacier.
NEUROHORMONAL INDUCTION OF PHEROMONE BIOSYNTHESIS BY HELIOTHIS ZEA (BODDIE) DURING THE PHOTOPHASE
Authors: Teal P.E.A. , Tumlinson J.H. 
Published: November 2009

AbstractFemales of Heliothis zea (Boddie) were stimulated to produce pheromone by injection of brain – subesophageal ganglion homogenates. Females injected with this homogenate during the photophase produced the same amount of pheromone and same ratio of components as neck-ligated females injected during the peak of pheromone production. Decapitated females and isolated abdomens also produced pheromone when injected with the brain – subesophageal ganglion homogenate during the photophase. These data show that the neurohormone which stimulates pheromone production is not degraded by enzymes during the photophase and that pheromone is not metabolized at a greater rate during periods when the insect is not producing pheromones.
LIMNOZETES(ACARI: ORIBATIDA: LIMNOZETIDAE) OF NORTHEASTERN NORTH AMERICA
Authors: Behan-Pelletier Valerie M. 
Published: November 2009

AbstractThe species ofLimnozetesof northeastern North America are treated. A new generic diagnosis is given. Eight new species are described:L.latilamellata,L.guyi,L.borealis,L.onondaga,L.amnicus, andL.palmeraeon the basis of adults and immatures, andL.lustrumandL.atmetoson the basis of adults. Identification of adults and immatures of these species is presented in tabular format. The range of morphological variation exhibited by these species is discussed. Transformation series for eight character states inLimnozetesare hypothesized on the basis of comparison withHydrozetes. A key is given to the adults of the nine species ofLimnozetesrecorded from northeastern North America.
RESISTANCE TO PYRAZOPHOS IN THE SERPENTINE LEAFMINER LIRIOMYZA TRIFOLII (BURGESS) (DIPTERA: AGROMYZIDAE) IN ONTARIO GREENHOUSES
Authors: Broadbent A.B. , Pree D.J. 
Published: November 2009

AbstractIn 1986 a greenhouse population of Liriomyza trifolii (Burgess) was shown to be highly resistant (155-fold at LC50) to the organophosphorus compound pyrazophos. However in 1987, the same population had only 35–40% resistant individuals remaining. A survey in 1986 of five other greenhouses reporting leafminer control failures indicated three other resistant populations in southern Ontario. Resistance was not affected by the addition of the synergists diethyl maleate or triphenyl phosphate to pyrazophos. Cross-resistance to the phosphorothioate insecticides demeton, chlorpyrifos, and triazophos was indicated.
IMMATURE STAGES AND BIOLOGY OF THE NORTH AMERICAN CADDISFLY GENUS PHANOCELIA BANKS (TRICHOPTERA: LIMNEPHILIDAE)
Authors: Fairchild Wayne L. , Wiggins Glenn B. 
Published: November 2009

AbstractLarvae of Phanocelia canadensis (Banks) were found inhabiting the floating sphagnum fringe of acidic bog ponds. Phanocelia canadensis has a 1-year life cycle with autumnal emergence. This is the first morphological and biological information available for immature stages of this genus.
IMMEDIATE AND 2ND-YEAR EFFECTS OF INSECTICIDE SPRAY AND BAIT TREATMENTS ON POPULATIONS OF RANGELAND GRASSHOPPERS
Authors: Quinn Mark A. , Kepner R.L. , Walgenbach D.D. , Bohls R.A. , Pooler P.D. , Foster R. Nelson , Reuter K.C. , Swain J.L. 
Published: November 2009

AbstractTwo, 1400-ha blocks of rangeland in western South Dakota were treated aerially with malathion liquid spray or carbaryl – bran bait in early July 1986 to determine the immediate and 2nd-year impact of treatments on grasshopper populations. Total grasshopper populations were reduced by 92 and 47% in the malathion and carbaryl – bran bait treatment plots, respectively, within 48 h after treatment and remained at a low level throughout the summer. Populations did not change in the control plots. Populations of the two most abundant species,Ageneotettix deorum(Scudder) andMelanoplus sanguinipes(F.), declined by 65 and 87%, respectively, in the carbaryl – bran bait plots but populations of bran "rejectors" (predominantlyTrachyrhachys kiowa[Thomas]) did not change.Densities of the bran "acceptors" (Melanoplusspp.,Phoetaliotes nebrascensis[Thomas], andA.deorum), as a group, did not change significantly in the control plots between the pre-treatment and July 1987 sampling dates. Densities within both sets of treatment plots were significantly lower in the 2nd year of the study than on the pre-treatment sampling date. Although 2nd-year populations of bran acceptors, as a group, did not increase to pre-treatment levels in the treated plots, populations ofM.sanguinipesdid increase to pre-treatment levels in both sets of treatment plots. Populations of bran rejectors generally remained low in treatment and control plots.Analysis of covariance of the densities of 2nd-year populations of total grasshoppers and bran rejectors indicated that treatment had no significant effect on populations of these grasshoppers, but the covariable, pre-treatment density, was significantly correlated with 2nd-year densities. Densities of 2nd-year populations of bran acceptors were also significantly correlated with pre-treatment densities.It was concluded that both the insecticidal spray and bait were effective in controlling most economically important species of rangeland grasshoppers. Although both treatments may have suppressed populations of bran acceptors, as a group, in the 2nd year of the study, neither suppressed populations ofM.sanguinipeswhich increased to pre-treatment levels regardless of treatment. The effect of treatments on 2nd-year populations of bran rejectors could not be determined because populations of this group also declined in control plots.
A NEW SAWFLY, PRISTIPHORA HARAI (HYMENOPTERA: TENTHREDINIDAE), COLLECTED FROM RED SPRUCE, PICEA GLEHNII MASTERS, IN JAPAN
Authors: Togashi Ichiji 
Published: November 2009

AbstractPristiphora harai sp.nov. collected on red spruce, Picea glehnii Masters, in Hokkaido is described, illustrated, and compared with P. ezomatsuvora Togashi.
DESCRIPTION OF THE GALLERY AND LARVA OF DENDROCTONUS PUNCTATUS LECONTE (COLEOPTERA: SCOLYTIDAE)
Authors: Furniss Malcolm M. , Johnson James B. 
Published: November 2009

AbstractA gallery system and the mature larva of Dendroctonus punctatus LeConte are described from white spruce in Montana. The gallery is allied to that of the Eurasian D. micans (Kugelann) but the larva differs particularly in having a sclerotized area on the eighth abdominal tergum that is lacking in D. micans. Similar native species are D. murrayanae Hopkins, which infests pines, and D. rufipennis (Kirby), which infests spruces. A key and diagnostic characters are presented for identifying D. punctatus larvae.
COMPARISON OF LEAF DISC AND PETRI DISH ASSAYS FOR THE ASSESSMENT OF DICOFOL RESISTANCE IN POPULATIONS OF EUROPEAN RED MITE FROM SOUTHERN ONTARIO
Authors: Pree D.J. , Cole K.J. , Fisher P.A. 
Published: November 2009

AbstractTwo bioassay methods using leaf discs and Petri dishes as the treated medium were compared. Resistance levels were approximately 11-fold with the leaf disc method and 7-fold using the Petri dish assay. Comparisons of the two methods on six wild populations indicated that the Petri dish assay was more sensitive in identifying low frequencies of resistance. Advantages of the Petri dish assay over the previously used leaf disc method for rapid, field-type surveys are discussed.Surveys of populations from the Simcoe and Niagara areas, using the Petri dish assay, indicated resistance to dicofol in 11 of 22 samples. Resistance was generally correlated with sites where dicofol had been used at least once a year for 2–3 consecutive years. The data indicate a resurgence of dicofol resistance since 1984 when resistance was detected at 4% of the surveyed sites.
TOXICITY OF INSECTICIDES TO FIRST-INSTAR LARVAE OF THE SPRUCE BUDMOTH, ZEIRAPHERA CANADENSIS MUT. AND FREE. (LEPIDOPTERA: TORTRICIDAE): LABORATORY AND FIELD STUDIES
Authors: Helson B.V. , de Groot P. , Turgeon J.J. , Kettela E.G. 
Published: November 2009

AbstractLaboratory tests with selected carbamate, organophosphorus, and pyrethroid insecticides demonstrated that the pyrethroid permethrin has the best potential for controlling newly hatched larvae of Zeiraphera canadensis Mut. and Free. Permethrin possessed high crawling contact toxicity (toxicity of insecticide deposits on foliage when contacted by crawling larvae) and direct contact toxicity to first-instar larvae and exhibited long residual effectiveness on potted, white spruce trees. Chlorpyrifos, fenitrothion, mexacarbate, and methomyl had high crawling contact toxicity but short residual activity. Azinphos-methyl appeared to possess long residual effectiveness but relatively low crawling contact toxicity. Aminocarb and thiodicarb exhibited short residual effectiveness and relatively low toxicity. In field trials, an aerial application of permethrin (70 g/ha) at egg hatch resulted in an 81% population reduction and limited the destruction of tree leaders to 9%. Leader destruction was greater than 19% after treatments of permethrin at 35 g AI/ha or aminocarb at 180 g AI/ha or aminocarb twice at 90 g AI/ha. Leader destruction in an untreated plantation was 51%.
INTERACTIONS AT THREE TROPHIC LEVELS: EDOVUM PUTTLERI GRISSELL (HYMENOPTERA: EULOPHIDAE), THE COLORADO POTATO BEETLE, AND INSECT-RESISTANT POTATOES
Authors: Ruberson John R. , Tauber Maurice J. , Tauber Catherine A. , Tingey Ward M. 
Published: November 2009

AbstractResistant potato plants influenced the parasitoid Edovum puttleri Grissell directly, as well as indirectly through eggs of the parasitoid’s host, the Colorado potato beetle, Leptinotarsa decemlineata (Say). In the field, E. puttleri parasitized more egg masses on plants with no glandular trichomes or with glandular trichomes bearing only enclosed droplets of exudate than on plants with two types of glandular trichomes (one with exposed droplets and the other bearing enclosed droplets). Trichomes with exposed droplets entrapped numerous parasitoids. Although rearing L. decemlineata on resistant plants influenced many of the beetle’s life-history traits, it did not affect the suitability of their eggs for development and survival of preimaginal E. puttleri. However, eggs from L. decemlineata that were reared on resistant potato plants reduced the longevity of the parasitoids and also reduced the number of hosts (eggs) killed by parasitoids.
THE LIFE HISTORY OF TOUMEYELLA PINI (KING) (HOMOPTERA: COCCIDAE) IN LOBLOLLY PINE SEED ORCHARDS IN GEORGIA
Authors: Clarke Stephen R. , DeBarr Gary L. , Berisford C. Wayne 
Published: November 2009

AbstractThe striped pine scale, Toumeyella pini (King), had three generations per year in south Georgia. Females developed on snoots and males developed on needles of loblolly pine, Pinus taeda L. Generations overlapped and crawlers were most abundant in May, mid-July to early August, and late October to early November. The average fecundity was 1865 crawlers per female. Parasitism averaged ca. 15%, but the predation rate reached 50%. Coccophagus lycimnia Walker (Hymenoptera: Aphelinidae) was the most common parasitoid reared from both males and females. A pyralid larva, Laetitia coccidivora (Comstock), was a frequent predator of females.
REVISION OF NORTH AMERICANAGABUSLEACH (COLEOPTERA: DYTISCIDAE): INTRODUCTION, KEY TO SPECIES GROUPS, AND CLASSIFICATION OF THEAMBIGUUS-,TRISTIS-, ANDARCTICUS-GROUPS
Authors: Larson D.J. 
Published: November 2009

AbstractThe first of a planned series of papers revising the Nearctic species of the predaceous diving beetle genus,AgabusLeach, is presented. The genus is defined in the broad sense of Sharp (1882) and Fall (1922). The North American species are divided into species groups and diagnostic characters for group recognition are summarized in a key. Assignment of species to these groups is indicated in a checklist of North American species. Theambiguus-,tristis-, andarcticus-groups are defined, their relationships discussed, and included species revised. Theambiguus-group, which is restricted to North America, contains the speciesA.ambiguus(Say),A.strigulosis(Crotch),A.erythropterus(Say),A.austiniiSharp, andA.klamathensissp.nov. Thetristis-group, which has a Holarctic distribution, contains two species in North America,A.tristisAubé andA.leptapsis(LeConte). The Holarcticarcticus-group is represented byA.arcticus(Paykull) andA.anthracinus(Mannerheim) in North America. For each species, patterns of variation are described, the North American distributions mapped, and ecological information summarized.
NOTE ONCYRTOGASTER VULGARISWALKER (HYMENOPTERA: PTEROMALIDAE), A SECONDARY PARASITE OF THE ALFALFA BLOTCH LEAFMINER (DIPTERA: AGROMYZIDAE), WITH DESCRIPTIONS OF THE IMMATURE STAGES
Authors: Guppy J.C. , Meloche F. 
Published: November 2009

AbstractCyrtogaster vulgarisWalker, a pupal parasite of the alfalfa blotch leafminer,Agromyza frontella(Rondani), acts as a secondary agent as well. The adults, which deposit their eggs within host puparia, apparently do not discriminate between healthy leafminers and those parasitized byDacnusa dryas(Nixon). The egg and larval cephalic structures ofC.vulgarisare described and illustrated and the final-instar larval skins of the two parasite species are compared.
DO BALSAM TWIG APHIDS (HOMOPTERA: APHIDIDAE) LOWER TREE SUSCEPTIBILITY TO SPRUCE BUDWORM?
Authors: Mattson William J. , Haack Robert A. , Lawrence Robert K. , Herms Daniel A. 
Published: November 2009

AbstractThe balsam twig aphid, Mindarus abietinus Koch, infested nearly all trees in a range-wide provenance plantation of balsam fir, Abies balsamea (L.) Mill., in Michigan. Infestation levels were highest on eastern and lowest on western seed sources of fir. Large populations of the aphid were correlated with low survival and reduced developmental rates of the spruce budworm, Choristoneura fumiferana (Clemens). We propose that chronic, high susceptibility of trees to aphids could reduce concomitant susceptibility to budworm through direct (competition) and indirect (host and community-level) effects.
PHEROMONE-BASED AGGREGATION INORTHOTOMICUS CAELATUS(EICHHOFF) (COLEOPTERA: SCOLYTIDAE)
Authors: Phillips Thomas W. , Atkinson Thomas H. , Foltz John L. 
Published: November 2009

AbstractTwo field experiments were conducted to determine ifOrthotomicus caelatus(Eichhoff) was attracted to pine bolts infested with conspecifics and to assess the roles of the sexes in attraction. Traps baited with pine bolts artificially infested with males attracted both males and females, but traps baited with uninfested bolts or bolts with females caught very low numbers of beetles. The addition of females to bolts with males reduced the attraction produced by males in a second experiment. Bolts with males and females did not reduce the attraction produced by other males in adjacent bolts, suggesting that females do not produce a masking pheromone. The pheromone system ofO.caelatusis similar to those known for other species in the Ipini in which males initiate gallery construction, produce an attractant, and attract females and opportunistic males. Preliminary gas chromatographic analyses of extracts of hindguts and frass from males boring on pine bolts suggested the presence of ipsdienol and ipsenol, two commonly occurring pheromones in other species of the Ipini. The pheromone system ofO.caelatusis discussed with regard to the complexity of the pine bark beetle guild in the southeastern United States.
On Geometric Flats in the CAT(0) Realization of Coxeter Groups and Tits Buildings
Authors: Caprace Pierre-Emmanuel , Haglund Frédéric 
Published: November 2009

Abstract.Given a complete CAT(0) spaceXendowed with a geometric action of a group Ⲅ, it is known that if Ⲅ contains a free abelian group of rankn, thenXcontains a geometric flat of dimensionn. We prove the converse of this statement in the special case whereXis a convex subcomplex of the CAT(0) realization of a Coxeter groupW, and Ⲅ is a subgroup ofW. In particular a convex cocompact subgroup of a Coxeter group is Gromov-hyperbolic if and only if it does not contain a free abelian group of rank 2. Our result also provides an explicit control on geometric flats in the CAT(0) realization of arbitrary Tits buildings.
The Face Semigroup Algebra of a Hyperplane Arrangement
Authors: Saliola Franco V. 
Published: November 2009

Abstract.This article presents a study of an algebra spanned by the faces of a hyperplane arrangement. The quiver with relations of the algebra is computed and the algebra is shown to be a Koszul algebra. It is shown that the algebra depends only on the intersection lattice of the hyperplane arrangement. A complete systemof primitive orthogonal idempotents for the algebra is constructed and other algebraic structure is determined including: a description of the projective indecomposablemodules, the Cartan invariants, projective resolutions of the simple modules, the Hochschild homology and cohomology, and the Koszul dual algebra. A new cohomology construction on posets is introduced, and it is shown that the face semigroup algebra is isomorphic to the cohomology algebra when this construction is applied to the intersection lattice of the hyperplane arrangement.
Group Gradings on Associative Algebras with Involution
Authors: Bahturin Y. A. , Giambruno A. 
Published: November 2009

AbstractIn this paper we describe the group gradings by a finite abelian group G of the matrix algebra Mn(F) over an algebraically closed field F of characteristic different from 2, which respect an involution (involution gradings). We also describe, under somewhat heavier restrictions on the base field, all G-gradings on all finite-dimensional involution simple algebras.
On the Inner Radius of a Nodal Domain
Authors: Mangoubi Dan 
Published: November 2009

AbstractLet M be a closed Riemannian manifold. We consider the inner radius of a nodal domain for a large eigenvalue λ. We give upper and lower bounds on the inner radius of the type C/λα(log λ)β. Our proof is based on a local behavior of eigenfunctions discovered by Donnelly and Fefferman and a Poincaré type inequality proved by Maz’ya. Sharp lower bounds are known only in dimension two. We give an account of this case too.
On the Classification of Rational Quantum Tori and the Structure of Their Automorphism Groups
Authors: Neeb Karl-Hermann 
Published: November 2009

AbstractAnn-dimensional quantum torus is a twisted group algebra of the group ℤn. It is called rational if all invertible commutators are roots of unity. In the present note we describe a normal form for rationaln-dimensional quantum tori over any field. Moreover, we show that forn= 2 the natural exact sequence describing the automorphism group of the quantum torus splits over any field.
Differences between Perfect Powers
Authors: Bennett Michael A. 
Published: November 2009

AbstractWe apply the hypergeometric method of Thue and Siegel to prove that if a and b are positive integers, then the inequality 0 < |ax – by | < ¼ max ﹛ax/2, by/2﹜ has at most a single solution in positive integers x and y. This essentially sharpens a classic result of LeVeque.
Coupled Vortex Equations on Complete Kähler Manifolds
Authors: Wang Yue 
Published: November 2009

AbstractIn this paper, we first investigate the Dirichlet problem for coupled vortex equations. Secondly, we give existence results for solutions of the coupled vortex equations on a class of complete noncompact Kähler manifolds which include simply-connected strictly negative curved manifolds, Hermitian symmetric spaces of noncompact type and strictly pseudo-convex domains equipped with the Bergmann metric.
Laplace Transform Type Multipliers for Hankel Transforms
Authors: Betancor Jorge J. , Martínez Teresa , Rodríguez-Mesa Lourdes 
Published: November 2009

AbstractIn this paper we establish that Hankel multipliers of Laplace transform type are bounded from Lp(w) into itself when 1 < p < ∞, and from L1(w) into L1,∞(w), provided that w is in the Muckenhoupt class Ap on ((0,∞), dx).
On the Simple ℤ2-homotopy Types of Graph Complexes and Their Simple ℤ2-universality
Authors: Csorba Péter 
Published: November 2009

AbstractWe prove that the neighborhood complex N(G), the box complex B(G), the homomorphism complex Hom(K2, G) and the Lovász complex L(G) have the same simple ℤ2-homotopy type in the sense of Whitehead. We show that these graph complexes are simple ℤ2-universal.