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https://www.readbyqxmd.com/read/28076373/larvae-and-nests-of-aculeate-hymenoptera-hymenoptera-aculeata-nesting-in-reed-galls-induced-by-lipara-spp-diptera-chloropidae-with-a-review-of-species-recorded-part-ii
#1
Alena Astapenková, Petr Heneberg, Petr Bogusch
The ability of aculeate Hymenoptera to utilize wetlands is poorly understood, and descriptions of their nests and developmental stages are largely absent. Here we present results based on our survey of hymenopterans using galls induced by Lipara spp. flies on common reed Phragmites australis in the years 2015-2016. We studied 20,704 galls, of which 9,446 were longitudinally cut and the brood from them reared in the laboratory, while the remaining 11,258 galls reared in rearing bags also in laboratory conditions...
2017: PloS One
https://www.readbyqxmd.com/read/28074919/development-of-microsatellite-markers-and-estimation-of-inbreeding-frequency-in-the-parasitoid-wasp-melittobia
#2
Jun Abe, Bart A Pannebakker
The parasitoid wasp Melittobia is an important insect for basic and applied biology. Specifically, their extremely female-biased sex ratios, which contrast to the prediction of pre-existing theories, are needed to be explained from the aspect of evolutionary biology. In this study, using next-generation sequencing, 20 microsatellite loci were developed and characterized for M. australica. The developed loci were used to analyze two populations, one from a mainland Japan and one from the Okinawa island region...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28073975/modeling-environmental-influences-in-the-psyllaephagus-bliteus-hymenoptera-encyrtidae-glycaspis-brimblecombei-hemiptera-aphalaridae-parasitoid-host-system
#3
M Margiotta, S Bella, F Buffa, V Caleca, I Floris, V Giorno, G Lo Verde, C Rapisarda, R Sasso, P Suma, F Tortorici, S Laudonia
Glycaspis brimblecombei Moore (Hemiptera: Aphalaridae) is an invasive psyllid introduced into the Mediterranean area, where it affects several species of Eucalyptus Psyllaephagus bliteus Riek (Hymenoptera: Encyrtidae) is a specialized parasitoid of this psyllid that was accidentally introduced into Italy in 2011. We developed a model of this host-parasitoid system that accounts for the influence of environmental conditions on the G. brimblecombei population dynamics and P. bliteus parasitism rates in the natural ecosystem...
January 10, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28070291/an-exotic-parasitoid-provides-an-invasional-lifeline-for-native-parasitoids
#4
Joanna K Konopka, Tim Haye, Tara Gariepy, Peter Mason, David Gillespie, Jeremy N McNeil
The introduction of an exotic species may alter food webs within the ecosystem and significantly affect the biodiversity of indigenous species at different trophic levels. It has been postulated that recent introduction of the brown marmorated stinkbug (Halyomorpha halys (Stål)) represents an evolutionary trap for native parasitoids, as they accept H. halys egg masses as a host but produce no viable progeny. Interspecific interactions between European egg parasitoid, Trissolcus cultratus (Mayr), and an Asian parasitoid, Trissolcus japonicus (Ashmead), were assessed by providing egg masses to T...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28069731/an-old-remedy-for-a-new-problem-identification-of-ooencyrtus-kuvanae-hymenoptera-encyrtidae-an-egg-parasitoid-of-lycorma-delicatula-hemiptera-fulgoridae-in-north-america
#5
Houping Liu, Jason Mottern
Spotted Lanternfly, Lycorma delicatula (White) is a recently introduced pest of Tree-of-Heaven, Ailanthus altissima (Mill.) Swingle in North America. Natural enemy surveys for this pest in Pennsylvania in 2016 recovered an encyrtid egg parasitoid from both field collections and laboratory rearing of field-collected L. delicatula egg masses. Both molecular and morphological data confirm that the egg parasitoids are Ooencyrtus kuvanae (Howard) (Hymenoptera: Encyrtidae). Ooencyrtus kuvanae (Howard) is primarily an egg parasitoid of gypsy moth, Lymantria dispar (L...
January 9, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28066711/metagenomic-analysis-of-microbial-community-of-a-parasitoid-wasp-megaphragma-amalphitanum
#6
A V Nedoluzhko, F S Sharko, S V Tsygankova, E S Boulygina, A S Sokolov, S M Rastorguev, V V Kadnikov, A V Mardanov, N V Ravin, A M Mazur, A A Polilov, N M Gruzdeva, E B Prokhortchouk, K G Skryabin
The vast majority of multicellular organisms coexist with bacterial symbionts that may play various roles during their life cycle. Parasitoid wasp Megaphragma amalphitanum (Hymenoptera: Trichogrammatidae) belongs to the smallest known insects whose size is comparable with some bacteria. Using 16S rRNA gene sequencing and Whole Genome Sequencing (WGS), we described microbiota diversity for this arthropod and its potential impact on their lifecycle. Metagenomic sequences were deposited to SRA database which is available at NCBI with accession number SRX2363723 and SRX2363724...
March 2017: Genomics Data
https://www.readbyqxmd.com/read/28063085/can-toxicants-used-against-cotton-mealybug-phenacoccus-solenopsis-be-compatible-with-an-encyrtid-parasitoid-aenasius-bambawalei-under-laboratory-conditions
#7
Hayat Badshah, Farman Ullah, Paul Andre Calatayud, Hidayat Ullah, Bashir Ahmad
The cotton mealybug, Phenacoccus solenopsis Tinsley (Sternorrhyncha: Pseudococcidae) is a serious pest of various cultivated plants in Pakistan. Recent reports show that the parasitoid Aenasius bambawalei Hayat (Hymenoptera: Encyrtidae) is a good biocontrol agent of the pest. Compatibleness is important in any IPM programme, and the insecticide used must have little or no effects on the biological control agent. This study investigated the compatibility of neem treatments and a commercial insecticide, imidacloprid on A...
January 6, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28062793/self-and-conspecific-discrimination-between-unparasitized-and-parasitized-green-peach-aphid-hemiptera-aphididae-by-aphelinus-asychis-hymenoptera-aphelinidae
#8
Qifu Liang, Yujie Jia, Tongxian Liu
Aphelinus asychis Walker (Hymenoptera: Aphelinidae) is a solitary koinobiont endoparasitoid, which parasitizes the green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae). Host discrimination is the ability of a parasitoid to distinguish between unparasitized and parasitized hosts, so parasitoids can avoid wasting eggs and time. We determined the influence of host density (5, 10, 15, 20, and 25 aphids per experienced parasitoid during a 24-h period) on egg distribution, and tested the effects of different time intervals (0, 24, 48, and 72 h) between successive ovipositions on host discrimination between unparasitized and self- or conspecific-parasitized aphids...
January 6, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28054305/mexican-fruit-fly-populations-in-the-semi-arid-highlands-of-the-sierra-madre-oriental-in-northeastern-mexico
#9
V Vanoye-Eligio, A Mora-Olivo, G Gaona-García, F Reyes-Zepeda, M Rocandio-Rodríguez
The Mexican fruit fly, Anastrepha ludens Loew (Diptera: Tephritidae), is one of the most important pests of citrus in Mexico. We report the results of an analysis of A. ludens populations that inhabit the semi-arid highlands of the Sierra Madre Oriental in northeastern Mexico. This study aimed to provide information on population fluctuation of A. ludens and how it relates to climate variables, as well as insights into habitat and native parasitoids. Population peaked in the period July-November when ripe fruits of the wild host, Casimiroa pubescens Ramírez, were available...
January 4, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28041943/high-temperature-induces-downregulation-of-polydnavirus-gene-transcription-in-lepidopteran-host-and-enhances-accumulation-of-host-immunity-gene-transcripts
#10
M Lukas Seehausen, Michel Cusson, Jacques Régnière, Maxence Bory, Don Stewart, Abdelmadjid Djoumad, Sandy M Smith, Véronique Martel
Endoparasitoids face the challenge of overcoming the immune reaction of their hosts, which typically consists of encapsulation and melanisation of parasitoid eggs or larvae. Some endoparasitic wasps such as the solitary Tranosema rostrale (Hymenoptera: Ichneumonidae) that lay their eggs in larvae of the spruce budworm, Choristoneura fumiferana (Lepidoptera: Tortricidae), have evolved a symbiotic relationship with a polydnavirus (PDV), which in turn helps them suppress the host's immune response. We observed an increase in mortality of immature T...
December 29, 2016: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28040876/host-coexistence-in-a-model-for-two-host-one-parasitoid-interactions
#11
Valentina Clamer, Andrea Pugliese, Davide Liessi, Dimitri Breda
Building from a continuous-time host-parasitoid model introduced by Murdoch et al. (Am Nat 129:263-282, 1987), we study the dynamics of a 2 host-parasitoid model assuming, for the sake of simplicity, that larval stages have a fixed duration. If each host is subjected to density-dependent mortality in its larval stage, we obtain explicit conditions for the existence of an equilibrium where the two host species coexist with the parasitoid. However, if host demography is density-independent, equilibrium coexistence is impossible...
December 31, 2016: Journal of Mathematical Biology
https://www.readbyqxmd.com/read/28040222/elicitation-of-superparasitization-behavior-from-the-parasitoid-wasp-leptopilina-boulardi-by-the-organophosphorus-insecticide-chlorpyrifos
#12
Jean-Marie Delpuech
Chlorpyrifos is an organophosphorus insecticide that largely contributes to environmental pollution. Parasitoids, as any other non-target species, can be exposed to insecticides through environmental pollution. Parasitoids are key species because they regulate natural populations of other insects. The hymenopterous parasitoid Leptopilina boulardi, whose larvae develop inside Drosophila larvae, is a solitary parasitoid; thus, only one larva can successfully develop per host. Therefore, females generally lay only one egg per host because any increase in the number of eggs laid will decrease its fitness...
December 28, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/28035894/sweet-tetra-trophic-interactions-multiple-evolution-of-nectar-secretion-a-defensive-extended-phenotype-in-cynipid-gall-wasps
#13
James A Nicholls, George Melika, Graham N Stone
Many herbivores employ reward-based mutualisms with ants to gain protection from natural enemies. We examine the evolutionary dynamics of a tetra-trophic interaction in which gall wasp herbivores induce their host oaks to produce nectar-secreting galls, which attract ants that provide protection from parasitoids. We show that, consistent with other gall defensive traits, nectar secretion has evolved repeatedly across the oak gall wasp tribe and also within a single genus (Disholcaspis) that includes many nectar-inducing species...
January 2017: American Naturalist
https://www.readbyqxmd.com/read/28031813/host-plant-associated-genetic-divergence-of-two-diatraea-spp-lepidoptera-crambidae-stemborers-on-novel-crop-plants
#14
Andrea L Joyce, Miguel Sermeno Chicas, Leopoldo Serrano Cervantes, Miguel Paniagua, Sonja J Scheffer, M Alma Solis
Diatraea lineolata and Diatraea saccharalis (Lepidoptera: Crambidae) are moths with stemboring larvae that feed and develop on economically important grasses. This study investigated whether these moths have diverged from a native host plant, corn, onto introduced crop plants including sorghum, sugarcane, and rice. Diatraea larvae were collected from these four host plants throughout the year in El Salvador and were reared on artificial diet until moths or parasitoids emerged. Adult moths were subsequently identified to species...
December 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28028170/influences-of-temperature-and-ootheca-age-on-the-life-history-of-the-cockroach-ootheca-parasitoid-aprostocetus-hagenowii-hymenoptera-eulophidae
#15
Hui-Siang Tee, Chow-Yang Lee
The influences of ootheca age and temperature on the life history of Aprostocetus hagenowii (Ratzeburg) (Hymenoptera: Eulophidae), a gregarious ootheca parasitoid of the American cockroach Periplaneta americana (L.) (Dictyoptera: Blattidae), were evaluated. Oothecae were incubated at 20, 25, and 30 °C to produce oothecae aged 1-60, 1-40, and 1-30 d old, respectively. Fitness traits (development time, percentage emergence, number of progeny, percentage female progeny, and female body size) of A. hagenowii developing in these different-aged oothecae were determined...
December 27, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28028102/parasitism-and-predation-on-sentinel-egg-masses-of-the-brown-marmorated-stink-bug-hemiptera-pentatomidae-in-three-vegetable-crops-importance-of-dissections-for-evaluating-the-impact-of-native-parasitoids-on-an-exotic-pest
#16
Mary L Cornelius, Christine Dieckhoff, Bryan T Vinyard, Kim A Hoelmer
We conducted a survey to examine parasitism, predation, and the species composition of native parasitoids attacking sentinel egg masses of the invasive pest, the brown marmorated stink bug, Halyomorpha halys (Stål), in bell pepper, squash, and tomato. A 2-yr survey was conducted for each crop. The species composition of parasitoids was determined for parasitoids that successfully emerged from eggs, parasitoids that were identified from dissections, and parasitoids that were found attending egg masses at the time of collection...
December 2016: Environmental Entomology
https://www.readbyqxmd.com/read/28028097/behavior-and-survival-of-the-filth-fly-parasitoids-spalangia-endius-and-urolepis-rufipes-hymenoptera-pteromalidae-in-response-to-three-granular-house-fly-baits-and-components
#17
Edwin R Burgess, B H King
Behaviors and mortality of two filth fly parasitoid wasps, Spalangia endius Walker and Urolepis rufipes Ashmead, were tested in response to granular fly baits containing one of the three active ingredients (AI): Golden Malrin (methomyl), QuickBayt (imidacloprid), or Quikstrike (dinotefuran). Behavioral responses to each of the two components of the baits, the AIs and the fly attractant pheromone (Z)-9-tricosene, were also examined independently. Spalangia endius avoided contact with bait granules, regardless of bait type...
December 2016: Environmental Entomology
https://www.readbyqxmd.com/read/28028096/finding-prospective-mates-by-the-parasitoid-wasp-urolepis-rufipes-hymenoptera-pteromalidae
#18
T N Wittman, K A Miller, B H King
Cues from emergence sites may be predictive of mating opportunities if potential mates are slow to disperse after emergence, and particularly if emergence sites are clumped, as in the solitary parasitoid wasp Urolepis rufipes Ashmead. Males emerge before females, and the present study suggests that males may use emergence sites of conspecific males to locate mates. In choice experiments, virgin males spent more time on a male-emerged host (a host from which a male had recently emerged) than on a female-emerged host...
December 2016: Environmental Entomology
https://www.readbyqxmd.com/read/28028089/wolbachia-in-parasitoids-attacking-native-european-and-introduced-eastern-cherry-fruit-flies-in-europe
#19
Hannes Schuler, Peter Kern, Wolfgang Arthofer, Heidrun Vogt, Maximilian Fischer, Christian Stauffer, Markus Riegler
The eastern cherry fruit fly, Rhagoletis cingulata Loew (Diptera: Tephritidae), is an economically important pest of cherries in North America. In 1983 it was first reported in Europe where it shares its ecological niche with the native European cherry fruit fly, Rhagoletis cerasi L. (Diptera: Tephritidae). Their coexistence in Europe led to the recent horizontal transmission of the Wolbachia strain wCer1 from R. cerasi to R. cingulata Horizontal Wolbachia transmission is mediated by either sharing of ecological niches or by interacting species such as parasitoids...
December 2016: Environmental Entomology
https://www.readbyqxmd.com/read/28025222/mechanisms-underlying-the-nonconsumptive-effects-of-parasitoid-wasps-on-aphids
#20
K S Ingerslew, D L Finke
Natural enemies need not consume herbivores to suppress herbivore populations. Behavioral interactions can adversely impact herbivore fitness from reduced time feeding, investment in defense, or injury from failed attacks. The importance of such "nonconsumptive effects" for herbivore suppression may vary across species based on the specificity and intensity of the herbivore defensive response. In a series of manipulative studies, we quantified the nature and consequences of nonconsumptive interactions between two parasitoid wasps, Aphidius ervi Haliday and Aphidius colemani Viereck, on two aphid species, pea aphids (Acyrthosiphon pisum (Harris)) and green peach aphids (Myzus persicae (Sulzer))...
December 26, 2016: Environmental Entomology
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