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Actia
Actia is a genus of tachinid flies (Diptera: Tachinidae) in the tribe Siphonini. These flies are parasitoids of lepidopteran larvae, with species recorded from hosts including spruce budworm, black-headed budworm, and various noctuid moths. The genus contains at least eight Nearctic species, including four described relatively recently (A. dasymyia, A. dimorpha, A. radialis, A. sternalis). Species are grouped into three species groups based on morphological and phylogenetic affinities: autumnalis-group, lamia-group, and crassicornis-group.
parasitoid tachinid biological-control forest-entomology Lepidoptera-parasitoid spruce-budworm Siphonini internal-parasitoid larval-parasitoid Nearctic Palearctic-affinities competitive-displacement multiparasitism
Actia interrupta
Actia interrupta is a tachinid fly (Diptera: Tachinidae) described by Curran in 1933. It is an endoparasitoid of lepidopteran larvae, particularly species in the genus Choristoneura including the spruce budworm (Choristoneura fumiferana), a major forest pest in North America. The species undergoes 2-4 generations per year depending on geographic location, with its phenology closely tied to host larval availability. Research indicates it competes with other parasitoids such as the ichneumonid Tranosema rostrale within shared hosts, and may have a competitive advantage in multiparasitism situations. It has been studied as a biological control agent and can be reared through manual inoculation of host larvae with first instar maggots.
parasitoid biological-control forest-entomology spruce-budworm Tachinidae multiparasitism Choristoneura
Entedoninae
Entedoninae is a subfamily of chalcid wasps in the family Eulophidae comprising over 90 genera. Members are primarily parasitoids with documented associations across diverse host groups including gall-inducing insects, leafminers, sawflies, thrips, and ants. The subfamily exhibits considerable morphological and ecological diversity, with species found in tropical to temperate habitats worldwide.
parasitoid biological-control gall-associated leafminer-parasitoid Chalcidoidea Hymenoptera Eulophidae Entedoninae tropical-forest agricultural-pest-control sawfly-parasitoid thrips-parasitoid ant-associated rice-pest Cecidomyiidae Tenthredinidae Pontania Closterocerus Ceranisus Afronympha Ametallon Chrysonotomyia Omphale-genus-group canopy understorey ecological-plasticity Bangladesh Panama Africa New-Zealand Europe Senegal South-Africa Democratic-Republic-of-the-Congo Uganda endoparasitoid larval-parasitoid egg-parasitoid host-specificity forest-habitat degraded-habitat mid-altitude-rainforest lowland-rainforest tropical-America classical-biological-control augmentative-biological-control integrated-pest-management rice-hispa Dicladispa-armigera gall-wasp sawfly-gall leafminer ant-symbiosis Formicidae Khaya-senegalensis Ochna-pulchra morphological-taxonomy molecular-taxonomy 28S-rDNA COI CytB new-species-description generic-revision host-range parasitoid-complex food-web ecosystem-service natural-enemy pest-management entomophagous hyperparasitoid inquiline curculionid Apion-minimum Phyllocolpa-leucosticta Chrysocharis Entedon Asecodes Pleurotroppopsis Afrotroppopsis Zaommomentedon Apleurotropis Kratoysma Platocharis Schizocharis Parahorismenus Atullya Tropicharis Chrysochuris cruy mirabilis oryzamyntor eminpashai carinatum dussiae longicaudata machaeriae unimaculata claviger gorgonaense auripunctata galbina laeviscuta phenacapsia cecvora elongata pontaniae heyeri risbeci milletiae newbyi Förster-1856 Chalcidoidea-phylogeny biodiversity species-richness cryptic-species molecular-diagnostics host-plant-association habitat-specificity canopy-fauna understorey-fauna forest-stratification tropical-biodiversity Afrotropical Neotropical Palaearctic Nearctic Oriental Australasian Pacific Holarctic biogeography taxonomic-revision annotated-key catalogue type-specimen museum-collection slide-mounted-specimens morphometrics genitalia wing-venation antennae clypeus mandibles malar-space scape pedicel flagellum gaster vertex suture color-pattern pale-femora dark-gaster sexual-dimorphism male female ovipositor emergence rearing quarantine field-collection foreign-exploration augmentative-release pesticide-resistance sustainable-agriculture food-security rice-production cereal-pest vegetable-pest fruit-pest ornamental-pest forest-pest urban-pest invasive-species native-range introduced-range establishment spread impact non-target-effects host-specificity risk-assessment environmental-safety regulatory-approval research-symposium proceedings peer-reviewed Zootaxa ZooKeys Insect-Systematics-&-Evolution Australian-Journal-of-Entomology Far-Eastern-Entomologist Russian-Entomological-Journal Belgian-Journal-of-Entomology Florida-Entomologist Pan-Pacific-Entomologist Entomological-News Proceedings-of-the-Hawaiian-Entomological-Society Transactions-of-the-American-Entomological-Society Journal-of-Natural-History Zoological-Journal-of-the-Linnean-Society BioControl Journal-of-Economic-Entomology Entomologia-Experimentalis-et-Applicata Environmental-Entomology Oecologia Cladistics Molecular-Phylogenetics-and-Evolution Heredity Canadian-Entomologist Proceedings-of-the-Entomological-Society-of-Washington Annals-of-the-Entomological-Society-of-America Bulletin-of-Entomological-Research Neotropical-Entomology Journal-of-Asia-Pacific-Entomology Turkish-Journal-of-Zoology Polish-Journal-of-Entomology North-Western-Journal-of-Zoology Entomologica-Americana Entomologische-Berichten Sahlbergia Dugesiana Acta-Zoologica-Lilloana Folia-Entomologica-Mexicana Revista-de-la-Sociedad-Entomologica-Argentina Boletin-de-la-Asociacion-Espanola-de-Entomologia Entomologicheskoe-Obozrenie Entomological-Review Zoological-Institute-RAS Proceedings-of-the-Zoological-Institute-of-the-Russian-Academy-of-Sciences Taiwan-Agricultural-Research-Institute Council-of-Agriculture University-of-California Riverside Entomology-Research-Museum California-Department-of-Food-and-Agriculture Pierce's-Disease-Control-Program biological-control-program integrated-pest-management-program research-progress-report annual-summary technical-report symposium-proceedings conference-abstract poster-presentation invited-paper monograph book-chapter identification-guide illustrated-key annotated-catalogue type-material voucher-specimen collection-curation taxonomy systematics phylogenetics molecular-systematics DNA-barcoding species-complex sibling-species species-boundaries geographic-variation population-genetics gene-flow reproductive-isolation host-race biotype strain laboratory-rearing insectary mass-production release monitoring impact-assessment efficacy economic-evaluation cost-benefit-analysis farmer-adoption extension education policy regulation international-cooperation capacity-building training workshop field-day demonstration on-farm-research participatory-research farmer-field-school sustainable-intensification agroecology conservation-biological-control habitat-management floral-resources refuge buffer-zone landscape-complexity connectivity spillover natural-enemy-diversity food-web-structure trophic-interactions multitrophic indirect-effects trait-mediated density-dependent inverse-density-dependent functional-response numerical-response searching-efficiency handling-time oviposition-behavior host-selection host-acceptance host-suitability host-quality host-stage-preference egg-load progeny-allocation sex-ratio local-mate-competition sib-mating inbreeding fitness longevity fecundity development-time thermal-requirements degree-days phenology synchrony asynchrony seasonal-adaptation diapause quiescence cold-hardiness heat-tolerance desiccation-resistance starvation-resistance dispersal flight walking foraging patch-use area-restricted-search oviposition-marking host-marking superparasitism multiparasitism intraguild-predation hyperparasitism autoparasitism heteronomous-hyperparasitism facultative-hyperparasitism obligate-hyperparasitism primary-parasitoid secondary-parasitoid tertiary-parasitoid mummy aphid-mummy scale-mummy pupal-parasitoid egg-larval-parasitoid larval-pupal-parasitoid idiobiont koinobiont ectoparasitoid solitary gregarious polyembryony thelytoky arrhenotoky diploid haplodiploid chromosome-number genome-size transcriptome proteome metabolome morphome phenome extended-phenotype niche-construction ecosystem-engineering keystone-species ecosystem-service-provider functional-group guild trophic-level energy-flow nutrient-cycling decomposition predation herbivory parasitism mutualism commensalism competition apparent-competition exploitative-competition interference-competition scramble-competition contest-competition resource-partitioning niche-differentiation character-displacement co-evolution arms-race Red-Queen geographic-mosaic local-adaptation phenotypic-plasticity genetic-adaptation epigenetics transgenerational-effects maternal-effects paternal-effects parental-care mating-system sexual-selection sperm-competition cryptic-female-choice mate-choice lek territory aggression alarm defense venom allomone kairomone synomone semiochemical pheromone trail-pheromone alarm-pheromone aggregation-pheromone sex-pheromone marking-pheromone oviposition-deterrent host-marking-pheromone plant-volatile induced-plant-defense systemic-acquired-resistance induced-systemic-resistance priming volatile-organic-compound green-leaf-volatile terpenoid phenylpropanoid jasmonic-acid salicylic-acid ethylene abscisic-acid gibberellin auxin cytokinin brassinosteroid strigolactone nitric-oxide reactive-oxygen-species hypersensitive-response programmed-cell-death autophagy apoptosis necrosis pathogen-associated-molecular-pattern damage-associated-molecular-pattern pattern-recognition-receptor effector-triggered-immunity gene-for-gene avirulence virulence effector toxin phytotoxin mycotoxin bacterial-toxin viral-toxin insecticidal-protein cry-protein vip-protein cyt-protein spore conidium appressorium haustorium mycelium sclerotium fruiting-body basidiocarp ascocarp perithecium cleistothecium pycnidium acervulus sporodochium symptom sign disease-triangle disease-cycle epidemic endemic pandemic outbreak eradication containment management control prevention forecasting warning-system decision-support-system expert-system model simulation economic-threshold economic-injury-level action-threshold treatment-threshold damage-threshold aesthetic-injury-level cultural-control physical-control mechanical-control chemical-control genetic-control sterile-insect-technique incompatible-insect-technique precision-agriculture site-specific-management variable-rate-application remote-sensing geographic-information-system global-positioning-system unmanned-aerial-vehicle drone sensor imaging spectroscopy machine-learning artificial-intelligence deep-learning neural-network computer-vision image-analysis pattern-recognition classification segmentation detection tracking counting sampling sampling-plan sequential-sampling binomial-sampling presence-absence-sampling fixed-precision-sampling variable-precision-sampling spatial-sampling temporal-sampling stratified-sampling cluster-sampling systematic-sampling random-sampling convenience-sampling judgment-sampling expert-sampling quota-sampling snowball-sampling respondent-driven-sampling capture-recapture mark-recapture mark-resight distance-sampling line-transect point-transect strip-transect plot quadrat pitfall-trap Malaise-trap pan-trap water-pan yellow-pan blue-pan white-pan flight-interception-trap window-trap canopy-fogging beating-tray sweep-net aerial-net ground-net aquatic-net D-vac vacuum-sampler aspirator mouth-aspirator mechanical-aspirator berlese-funnel Tullgren-funnel Winkler-extractor pitfall barber-trap pitfall-array drift-fence funnel-trap light-trap UV-light black-light mercury-vapor sodium-vapor LED actinic color-trap sticky-trap pheromone-trap synthetic-pheromone natural-pheromone kairomone-trap food-bait protein-bait sugar-bait fermentation-bait alcohol-bait vinegar-bait molasses-bait fruit-bait meat-bait fish-bait dung-bait carrion-bait decoy lure attractant repellent deterrent antifeedant oviposition-stimulant arrestant suppressant toxicant stomach-poison contact-poison fumigant systemic translaminar residual persistent non-persistent broad-spectrum narrow-spectrum selective non-selective target-specific host-specific mode-of-action nerve-poison acetylcholinesterase-inhibitor GABA-antagonist sodium-channel-modulator nicotinic-acetylcholine-receptor-agonist ryanodine-receptor-modulator chitin-synthesis-inhibitor juvenile-hormone-mimic ecdysone-agonist microbial-pesticide entomopathogenic-nematode entomopathogenic-fungus entomopathogenic-bacterium entomopathogenic-virus entomopathogenic-protozoa Bacillus-thuringiensis Bt Bacillus-sphaericus Paenibacillus-popilliae Serratia-entomophila Metarhizium-anisopliae Beauveria-bassiana Lecanicillium-lecanii Isaria-fumosorosea Nomuraea-rileyi Hirsutella-thompsonii Entomophthora Neozygites Nosema Vairimorpha Thelohania Anticarsia-gemmatalis-nucleopolyhedrovirus AgMNPV Cydia-pomonella-granulovirus CpGV Spodoptera-exigua-multiple-nucleopolyhedrovirus SeMNPV Autographa-californica-multiple-nucleopolyhedrovirus AcMNPV nucleopolyhedrovirus granulovirus cypovirus entomopoxvirus iridovirus parvovirus tetravirus nodavirus reovirus picornavirus iflavirus densovirus birnavirus totivirus partitivirus hypovirulence mycovirus bacteriophage phage transduction conjugation transformation horizontal-gene-transfer vertical-gene-transfer mobile-genetic-element transposon plasmid integron genomic-island pathogenicity-island symbiosis-island metabolic-island resistance-island virulence-factor antibiotic-resistance insecticide-resistance acaricide-resistance herbicide-resistance fungicide-resistance bactericide-resistance nematicide-resistance molluscicide-resistance rodenticide-resistance resistance-management resistance-monitoring resistance-detection resistance-diagnosis resistance-mechanism metabolic-resistance target-site-resistance penetration-resistance behavioral-resistance cross-resistance multiple-resistance negative-cross-resistance synergism antagonism potentiation safener adjuvant surfactant spreader sticker extender buffer acidifier defoamer drift-retardant rainfastness UV-protectant formulation emulsifiable-concentrate wettable-powder water-dispersible-granule suspension-concentrate capsule-suspension microencapsulation nanotechnology controlled-release slow-release attract-and-kill sterile-insect-release inundative-release inoculative-release conservation augmentation classical neoclassical new-association targeted area-wide suppression protection production integrated-crop-management integrated-production organic-farming biodynamic-farming permaculture agroforestry silvopasture climate-smart-agriculture 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Exenterus amictorius
Exenterus amictorius is an ichneumonid parasitoid wasp introduced to North America that attacks sawfly larvae (Hymenoptera: Diprionidae), particularly during the pre-spinning eonymph stage. The species exhibits adaptive host discrimination behavior that changes during the host's spinning period, lacks discrimination initially but rapidly acquires and maintains this ability. It shows strong positive density-dependent responses to host abundance and has established successfully on multiple diprionid hosts across North America. In multiparasitism situations with the native E. diprionis, E. amictorius consistently survives due to faster larval development.
parasitoid biological-control sawfly-parasite introduced-species forest-entomology Ichneumonidae Diprionidae host-discrimination density-dependent-response multiparasitism competitive-displacement jack-pine pine-sawfly Quebec Ontario Europe North-America koinobiont idiobiont oviposition-behavior adaptive-behavior learning egg-complement Morisita's-Index power-function sex-ratio-bias seasonal-emergence invasive-species-success population-regulation host-switching establishment spread dominance competition exclusion phenology temporal-partitioning spatial-distribution aggregation functional-response numerical-response discrimination-learning associative-learning reproductive-strategy life-history development-rate survival interspecific-competition community-ecology species-interactions trophic-cascade ecosystem-service natural-enemy pest-management integrated-pest-management silviculture forest-health coniferous-forest boreal-forest temperate-forest pine-forest habitat-specificity host-specificity host-range-expansion biogeography colonization invasion-biology establishment-success population-dynamics density-dependence spatial-heterogeneity temporal-heterogeneity behavioral-plasticity phenotypic-plasticity memory decision-making foraging-behavior oviposition-strategy reproductive-allocation sex-allocation local-mate-competition fitness development emergence overwintering diapause voltinism univoltine partially-bivoltine seasonality synchrony asynchrony host-parasitoid-interactions biological-control-efficacy non-target-effects environmental-risk beneficial-insect conservation-biological-control augmentative-biological-control classical-biological-control introduced-natural-enemy exotic-species non-native-species invasive-species range-expansion distribution occurrence abundance population-density sampling monitoring survey inventory phylogeography molecular-ecology systematics taxonomy identification morphology anatomy behavior ecology reproduction 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