Pest-species

Guides

Agrilus
jewel beetles, metallic woodboring beetles
Agrilus is a genus of jewel beetles (family Buprestidae) containing approximately 3,000-4,000 described species, making it one of the largest genera in the animal kingdom. Species are found on all continents except Antarctica and exhibit diverse ecological strategies, though most are wood-boring larvae developing in recently dead branches of woody flowering plants. A few notable species are economically significant pests that attack living trees, including the emerald ash borer (A. planipennis), bronze birch borer (A. anxius), and twolined chestnut borer (A. bilineatus).
Buprestidae wood-boring-beetles pest-species hyperdiverse-genus metallic-beetles
Ascia
great southern white (for sole species)
Ascia is a monotypic genus of butterflies in the family Pieridae, containing only the species Ascia monuste (great southern white). The genus is distributed from the Atlantic and Gulf coasts of the United States south through tropical America to Argentina. The sole species exhibits sexual dimorphism and seasonal migration patterns along the southeastern United States coast.
monotypic migratory pest-species sexual-dimorphism
Callidiellum villosulum
A small longhorn beetle (Cerambycidae: Cerambycinae: Callidiini) characterized by sexual dimorphism in mouthpart morphology. Adult females possess larger labial and maxillary palps with more developed sensilla basiconica IV, sensilla campaniformia, and sensilla chaetica II, structures associated with oviposition site selection. Males exhibit more developed sensilla basiconica I, potentially involved in mate recognition. The species has been subject to detailed scanning electron microscopy studies of its chemosensory and mechanosensory mouthpart structures.
Cerambycidae Callidiini sensilla sexual-dimorphism scanning-electron-microscopy mouthparts chemoreception pest-species
Choreutidae
metalmark moths
Choreutidae, commonly known as metalmark moths, are a family of small Lepidoptera now placed in their own superfamily Choreutoidea. The family contains approximately 19 genera in three subfamilies (Choreutinae, Brenthiinae, and possibly others), defined primarily by structural characteristics of larvae and pupae rather than adult morphology. Many species exhibit metallic scaling and distinctive diurnal behaviors, with some members of the genus Brenthia demonstrating documented predator mimicry of jumping spiders. The family has been subject to considerable taxonomic revision, having previously been placed in Yponomeutoidea and Sesioidea.
diurnal metallic-coloration predator-mimicry leaf-skeletonizer pest-species parasitoid-host
Diachlorus ferrugatus
Yellow Fly, Yellow Fly of the Dismal Swamp, Doctor Fly
Diachlorus ferrugatus is a biting horse fly native to North and Central America, ranging from the southeastern United States to Costa Rica. It is notorious for its aggressive biting behavior toward humans and is considered one of the most aggressive tabanid species in Florida. Females require blood meals for egg development and are active during daylight hours, with peak activity at sunset. The species is associated with aquatic habitats and nearby vegetation.
biting-fly horse-fly medical-entomology pest-species vector aggressive-biter
Ennominae
geometer moths
Ennominae is the largest subfamily of Geometridae, containing approximately 9,700 described species in 1,100 genera. Adults range from small to moderately large, with wingspans typically between 15 and 50 mm. The subfamily has a global distribution and includes several economically significant defoliating pest species. Larvae are characterized by having only two pairs of prolegs at the posterior end, producing the distinctive looping locomotion that gives the family its common name of inchworms or loopers.
geometridae inchworms loopers defoliators global-distribution pest-species industrial-melanism cryptic-larvae
Epimecis
Epimecis is a genus of geometer moths in the family Geometridae, subfamily Ennominae. The genus was established by Jacob Hübner in 1825 and contains approximately 22 described species distributed primarily in the Americas. Notable species include Epimecis hortaria (tulip-tree beauty) and Epimecis detexta (avocado spanworm moth). The genus is characterized by its placement within the diverse and species-rich Geometridae family.
geometridae ennominae moths americas pest-species
Erannis vancouverensis
Vancouver Looper
Erannis vancouverensis is a geometrid moth occurring from northern British Columbia to central California. Larvae feed on young leaves of deciduous trees. Adults emerge during late autumn, with females being wingless. The species occasionally reaches infestation levels and is subject to natural population control through virus disease and tachinid fly parasitism.
geometrid-moth wingless-female deciduous-forest Pacific-coast autumn-emergence tachinid-parasitism viral-disease herbivore pest-species
Forelius pruinosus
high noon ant
Forelius pruinosus, commonly known as the high noon ant, is a North American ant species in the subfamily Dolichoderinae. It is notable for its diurnal foraging activity during hot, dry conditions, its polygynous colony structure with multiple queens, and its documented mutualistic relationships with various plants and insects. The species has been observed in sea turtle nests on Georgia's barrier islands and has been studied as a native ant mutualist in contrast to invasive ant species.
ant native-mutualist diurnal polygynous North-America pest-species fire-adapted
Gynaephora
Arctic woolly bear moths, grassland caterpillars (Qinghai-Tibetan Plateau species)
A genus of tussock moths (Lymantriinae: Erebidae) distributed across the Holarctic in alpine, Arctic, and Subarctic regions. Best known for exceptionally slow larval development, with some species requiring multiple years to complete their life cycle. Females are flightless or nearly so, while males are strong fliers that actively search for mates. The genus includes both Arctic species (e.g., G. groenlandica, G. rossii) and high-altitude Asian species (e.g., G. alpherakii, G. menyuanensis) that are significant pests of alpine meadows on the Qinghai-Tibetan Plateau.
Arctic alpine freeze-tolerance behavioral-thermoregulation slow-development flightless-females pest-species Qinghai-Tibetan-Plateau Lymantriinae tussock-moths olfactory-biology climate-change-indicator
Hieroxestinae
Hieroxestinae is a subfamily of moths within the family Tineidae, comprising approximately 275 valid species across six genera. The group shows notable biogeographic patterns, with significant radiations of Opogona and Amphixystis on Indian Ocean islands and a distinct radiation of Opogona on St Helena in the South Atlantic. The subfamily is predominantly tropical in distribution and depauperate in the Americas.
tineidae moths tropical island-radiation detritivory pest-species
Melanoplus devastator
devastating grasshopper
Melanoplus devastator, the devastating grasshopper, is a medium-sized spur-throated grasshopper endemic to the far western United States, primarily California, with limited occurrence in Oregon and Washington. It is a major agricultural pest known for irruptive population outbreaks that can cause extensive damage to rangeland forage, orchards, and crops. The species exhibits a unique life history among rangeland grasshoppers, with females entering reproductive diapause during summer and resuming egg development in fall triggered by decreasing photoperiod. When populations explode, nymphal bands and adult swarms migrate from depleted foothill rangelands into valley agricultural areas, sometimes traveling 30 miles or more.
pest-species agricultural-pest migratory diapause California-endemic outbreak-species rangeland orchard-pest
Mermiria
mermiria grasshoppers, slant-faced grasshoppers
Mermiria is a genus of slant-faced grasshoppers in the family Acrididae, comprising at least four described species distributed across North America. These grasshoppers are characterized by their strongly slanted faces, long wings, and association with tallgrass prairie habitats. The genus includes economically significant species that feed on native and introduced grasses.
grasshopper Acrididae Gomphocerinae tallgrass-prairie North-America graminivore slant-faced pest-species
Oedaleonotus
Oedaleonotus is a genus of spur-throated grasshoppers in the family Acrididae, subfamily Melanoplinae. The genus contains approximately nine described species distributed primarily in western North America. The best-known species, Oedaleonotus enigma (valley grasshopper), is a significant rangeland pest known for its migratory behavior and capacity to reach outbreak densities. Members of this genus are characterized by variable wing development, with some species having fully functional long wings and others having reduced or short wings.
spur-throated-grasshopper Melanoplinae pest-species rangeland wing-dimorphism migratory
Oryctini
rhinoceros beetles
Oryctini is a tribe of large, robust scarab beetles within the subfamily Dynastinae, commonly referred to as "rhinoceros beetles." Members range from 25–60 mm in length and are typically dark brown to black. The tribe includes approximately 25 genera distributed worldwide, with particular diversity in the Neotropical region. Several species are economically significant pests, notably in the genus Oryctes, which damages palms and sugarcane. Males frequently possess pronounced horns or armored projections on the head and pronotum, with horn development influenced by larval nutrition.
Scarabaeidae Dynastinae rhinoceros-beetles nocturnal horn-dimorphism pest-species decomposer Neotropical-diversity
Pacifastacus leniusculus
Signal Crayfish
The signal crayfish is a large North American freshwater crayfish introduced to Europe in the 1960s to replace declining native fisheries. It has become one of the most ecologically impactful invasive decapods in Europe, outcompeting native crayfish and serving as a carrier of crayfish plague (Aphanomyces astaci). The species establishes self-sustaining populations rapidly, with six age cohorts documented within a few years of introduction. It shows sex- and size-specific coloration patterns, with males displaying more saturated and brighter ventral claw surfaces than females, suggesting a role in intraspecific communication.
invasive-species crayfish-plague-carrier decapod freshwater-crustacean conservation-concern species-of-Union-concern early-detection-rapid-response ark-sites ecosystem-engineer bioaccumulation sexual-dimorphism nocturnal-activity invasion-gradient trapping electrofishing eradication Mediterranean-invasion headwater-threat native-crayfish-displacement fisheries-introduction 1960s-introduction Europe Japan California-native Pacifastacus Astacidae Decapoda Malacostraca Arthropoda Aphanomyces-astaci white-clawed-crayfish signal-crayfish control-planning removal-actions catch-per-unit-effort color-variation carotenoids camouflage conspicuousness intraspecific-communication elemental-accumulation contaminant trophic-level macroinvertebrate plant-detritus riffle stream river lake tributary invasion-front core-population exploratory-behavior migration-patterns ontogenetic-color-change kick-sampling detection-protocol false-negative Catalonia Italy Portugal Spain Poland Scandinavia British-Isles Segura-River Clitunno-River Valla-stream Rabaçal-River Fosso-Vecchio Union-concern LIFE-IMAGINE eradication-attempt biosecurity pathway-action-plans INNS-inspectorate environmental-DNA eDNA host-pathogen-dynamics conservation-translocation ark-site aggregates-levy environment-agency BBC-wildlife-fund defra habitats-directive favourable-conservation-status unfavourable-bad extinction-risk funding-cuts ecosystem-services keystone-species woodland pollination decomposition nutrient-cycling predation water-purification citizen-science ex-situ-conservation-rearing zoos aquaria Fen-Raft-Spider Pond-Mud-Snail Large-Marsh-Grasshopper Freshwater-Pearl-Mussel Marbled-White-Butterfly Small-Skipper climate-change assisted-colonization range-margin biotic-response abiotic-driver warming pollution eutrophication functional-trait thermal-limit embryogenesis competitive-advantage alien-aquatic-species artificial-light-at-night nutrient-enrichment brown-trout biological-control clearance-rate parasite-load sympatry global-invader predatory-interaction experimental-approach epiphytic-algae submerged-plant-community molecular-tools informatics social-media pooled-sampling integrative-taxonomy hybrid bryozoan cost-efficient-methodology policy-effectiveness legislative-tools LIFE-INVASAQUA networking prevention awareness marine-protected-area citizen-science-data non-native-freshwater-fish knowledge-gaps invasive-alien-freshwater-plants naturalised-plants aquatic-habitats pot-plants horticulture New-Guinea-flatworm Partula-tree-snails Lob-worm Lumbricus-terrestris Harlequin-ladybird Oak-processionary-moth New-Zealand-flatworm Australian-flatworm Lily-beetle Rosemary-leaf-beetle Spanish-slug Girdled-snail Australian-landhopper Light-brown-apple-moth Asian-hornet Argentine-ant Linepithema-humile Vespa-velutina ash-dieback Hymenoscyphus-fraxineus Floating-Pennywort Giant-Hogweed Chinese-Mitten-Crab Eriocheir-sinensis Ballast-Water-Convention Office-for-Environmental-Protection Environmental-Improvement-Plan Global-Biodiversity-Framework delisting listing rapid-response Great-Britain-Non-native-Species-Strategy Nature-2030 Wildlife-and-Countryside-Link Buglife invertebrate conservation reintroduction reinforcement assisted-colonisation habitat-management genetic-diversity donor-stock stakeholder-collaboration Natural-England eNGO landowner public-engagement media-attention tabloid sensationalism spider size-of-rats Marvellous-Mud-Snails-Cornwall Citizen-Zoo Hop-of-Hope volunteer ex-situ-rearing long-life-cycle glochidia salmonid-fish-host Freshwater-Biology-Association juvenile-mussel habitat-restoration micro-habitat Field-Cricket Wart-biter-Bush-cricket Barberry-Carpet-Moth Marsh-Fritillary-Butterfly Fisher's-Estuarine-Moth Southern-Damselfly White-faced-Darter-Dragonfly Pine-Hoverfly Dark-bordered-Beauty-Moth Medicinal-Leech Tadpole-Shrimp Netted-Carpet-Moth Ladybird-Spider Narrow-headed-Ant Cumbria Dorset Devon microhabitat low-mobility natural-colonization short-haired-bumblebee Bombus-subterraneus sub-optimal-management Barberry-bush Paul-Waring Benoit-Guénard conservation-funding vertebrate-bias invertebrate-neglect beaver Castor-fiber pine-marten Martes-martes bird-of-prey Large-Blue-Butterfly Phengaris-arion Chequered-Skipper Carterocephalus-palaemon mainland-Europe national-reintroduction local-reintroduction donor-population receptor-site county 400-m isolated-habitat England-Species-Reintroduction-Task-Force Karim-Vahed half-a-century diverse-species logistically-easier guidelines code government habitat-conditions site-conditions targeted-habitat-management mobility recovery unsuccessful-case lack-of-genetic-diversity optimal-management establishment-failure care knowledge funding-allocation PNAS threatened-species 80%6%species-numbers imbalance legislation wild-release high-profile main-image Decticus-verrucivorus Dr-Sarah-Henshall share Facebook LinkedIn Trinity-Audio tweet NEOBIOTA-2024 Lisbon 421-participants 47-countries invasion-science aquatic-studies marine freshwater oral-session poster workshop NeoBiota-Special-Issue editorial Pedro-Anastácio Filipe-Ribeiro Paula-Chainho 23-papers five-themes 100th-issue ZooKeys digital-taxonomy environmental-stressor invasion-success salinity sea-level-rise Alternanthera-philoxeroides stress-tolerance avoidance escape Gonçalves physiological-performance Callinectes-sapidus climate-warming Phymactis-papillosa environmental-tolerance ecological-impact Portuguese-intertidal synergistic-effect Zhang ecological-interaction invasion-impact population-dynamics Salmo-trutta Matos bivalve capture-efficiency natural-seston Cabral Eupercaria Tkachenko global-aquatic-invader Reshetnikov Pontederia-crassipes Pistia-stratiotes Shen detection monitoring surveillance early-detection Dias Xenopus-laevis pooled-eDNA Everts Squalius Gkenas Chilean-SE-Pacific Rech management policy legislative-tool EU-policy sectoral-impact Magliozzi freshwater-turtle Rato Carosi habitat-use trapping-efficiency hypersaline-lagoon Herrero-Reyes Iberian-Peninsula López-Cañizares African-marine-protected-area global-database Ackland Indian-freshwater-fish evidence-gap Kumar European-freshwater-plant ecosystem-impact Di-Lernia global-synthesis naturalised-plant aquatic-habitat Kortz interdisciplinarity translational-relevance issue-4930 Bluesky scholarly-publishing ecology invasion-ecology aquatic-ecosystem flatworm snail gang-attack extinction pot-plant soil-sterilization fumigation hot-water-immersion biosecurity-measure international-trade Hirudo-medicinalis Neil-Phillips Steven-Falk Sarah-Henshall omphiscola-glabra Cornwall Scotland Blera-fallax Epione-vespertaria Triops-cancriformis Eustroma-reticulatum Eresus-sandaliatus Formica-exsecta Gryllus-campestris Decticus-verrucivorous Pareulype-berberata Euphydryas-aurinia Margaritifera-margaritifera Gortyna-borelii-lunata Dolomedes-plantarius Coenagrion-mercuriale Leucorrhinia-dubia Stethophyma-grossum Melanargia-galathea Thymelicus-sylvestris Formica-rufa Kielder-Forest Northumberland Liz-Oldring Stephen-Wills Durham-University climate-suitability limited-funding biased-funding vertebrate nature-positive-trade 2024-General-Election Manifesto-for-Bugs seven-actions commitments halting-nature-loss reversing-invertebrate-decline Andrew-Whitehouse South-West-Manager Lord-De-Mauley wildlife-minister mineral-extraction Treasury George-Entwistle 50%-cut badger-cull river-dredging £100K £12.75 £420 £1,616 2012 2014 21-projects 2-projects reporting Bedstraw-hawk-moth national-pride leadership David-Smith Social-Change-and-Advocacy-Officer Lisa-Manning Policy-and-Engagement-Officer February-2024 GB-Non-Native-Species-Strategy one-year-anniversary measurability timeline off-track 2030 time-lag establishment Red-Imported-Fire-Ant Solenopsis-invicta world's-worst-invasive-species PaPs draft-form consultation-delay 2023-State-of-Nature-Report Environmental-Audit-Committee £6-million animal-health plant-health resourcing long-term-future slipped-timelines inefficient-process fully-resourced-implementation-plans general-election manifesto smallest-creatures foundations healthy-environment ecosystem-function nature's-decline action commitment England-Manager deliberate-movement release wild conservation-purpose feathered furred multitude large-scale 1980s 1990s 2018 England small-size small-scale region 2005 2007 2008 2010-2015 2009 2010 2019 2022 2023 isolated high-reproductive-potential cost-effective zoo aquarium collaboration ten-different-zoos thousands spiderlings four-new-populations Norfolk Suffolk media-response 2024 headline homeowner urgent-warning relatively-easy-to-rear local-schools colleges volunteers small-aquaria 500-snails four-new-sites 6,000 47-volunteers long-complex-life-cycle long-lived many-years 50,000 specialised-facilities hundreds juvenile-mussels ageing-populations Northern-England natural-range conservation-status 2000 climatically-suitable nine-years pest-species Forestry-England Wood-Ant keystone-woodland-species rescue immediate-danger Austropotamobius-pallipes North-American-Signal-Crayfish Pacifastacus-leniusculus outcompetes fungal Crayfish-Plague susceptible successful-reintroduction rigorous-planning appropriate-guidelines reintroduction-code natural-habitat restoration micro-habitat-requirements life-cycle-stage conservation-tool-kit targeted-habitat-restoration mobile-species species-specialist public 2010s 2004 thousands-of-caterpillars multiple-attempts public-attention vertebrate-relative 2025 opposite-pattern celebration
Phyllophaga zavalana
Zavala Phyllophaga
Phyllophaga zavalana is a species of scarab beetle in the family Scarabaeidae, subfamily Melolonthinae. It is one of several flightless species within the large genus Phyllophaga, which contains over 400 North American species. P. zavalana is restricted to Texas and closely resembles P. cribrosa and P. epigaea, differing primarily in the absence of distinct longitudinal elytral furrows.
flightless grassland Texas-endemic pest-species
Psychidae
Bagworm Moths, Bagworms, Bagmoths
Psychidae, commonly known as bagworm moths, is a family of approximately 1,350 described species of Lepidoptera. The family is distinguished by the larval behavior of constructing portable protective cases from silk and environmental materials such as twigs, leaves, or bark. These cases, which give the group its common name, are carried throughout larval development and serve as pupal shelters. Adult males are typically winged, while females of many species are flightless and remain within their cases.
case-building sexual-dimorphism pest-species folivore parasitoid-host
Rhamphini
Flea Weevils
Rhamphini is a tribe of weevils (Curculionidae: Curculioninae) commonly known as flea weevils, characterized by their jumping ability. The tribe includes economically significant leaf-mining species that feed on diverse host plants including poplars, elms, willows, and various herbs. Members exhibit diverse biogeographic distributions across the Palearctic, Oriental, and Neotropical regions, with notable diversity in Asia and Europe.
leaf-miners jumping-weevils pest-species parasitoid-hosts
Stictocephala stimulea
Stictocephala stimulea is a treehopper species in the family Membracidae, first described by Van Duzee in 1914. Treehoppers in this genus are characterized by their enlarged, often ornate pronotum that extends over the body like a helmet or thorn. The specific epithet 'stimulea' suggests possible resemblance to or association with stinging organisms, though this refers to appearance rather than actual sting. Like other membracids, this species likely feeds on plant phloem sap using piercing-sucking mouthparts.
Membracidae treehopper Auchenorrhyncha Cicadomorpha Stictocephala Ceresini Smiliinae Hemiptera sap-feeder pronotum helmet thorn-mimicry plant-feeding-insect phloem-feeder cryptic-coloration camouflage Van-Duzee-1914 Nearctic North-America Florida North-Carolina South-Dakota understudied-species data-deficient taxonomy entomology insect arthropod true-bug auchenorrhynchan cicadomorph leafhopper-relative plant-hopper ornate-pronotum pronotal-extension dorsal-helmet insect-morphology insect-systematics biodiversity natural-history conservation insect-ecology insect-behavior insect-development insect-distribution biogeography species-description type-specimen original-description historical-taxonomy museum-specimen collection-record occurrence-data GBIF iNaturalist citizen-science observation-record range-map distribution-data geographic-range endemic native-species regional-fauna local-biodiversity habitat-specificity host-plant feeding-guild phytophagous herbivore plant-insect-interaction coevolution mimicry defense crypsis evolutionary-adaptation morphological-adaptation exoskeleton-modification structural-coloration insect-identification field-guide diagnostic-character taxonomic-key species-complex cryptic-species morphological-variation geographic-variation phenotypic-plasticity life-history reproduction oviposition nymph instar metamorphosis hemimetabolous incomplete-metamorphosis population-dynamics community-ecology food-web trophic-level primary-consumer ecosystem-function nutrient-cycling energy-flow biological-control pest-status agricultural-relevance forestry urban-ecology invasive-potential climate-change habitat-loss conservation-status data-gap research-need taxonomic-revision phylogenetics molecular-systematics DNA-barcoding integrative-taxonomy natural-history-collection specimen-digitization open-data FAIR-data biodiversity-informatics biological-database taxonomic-authority nomenclature zoological-nomenclature International-Code-of-Zoological-Nomenclature type-locality type-specimen-deposition author-citation original-combination current-combination synonymy homonymy nomenclatural-act taxonomic-history classification-system phylogenetic-classification evolutionary-relationships monophyly clade lineage stem-group crown-group divergence-time molecular-clock fossil-record paleontology extant extinct living-fossil evolutionary-history biogeographic-history dispersal vicariance range-expansion range-contraction refugium glacial-relict postglacial-colonization anthropogenic-impact human-disturbance land-use-change urbanization agricultural-intensification pesticide-use habitat-fragmentation connectivity corridor protected-area conservation-planning systematic-conservation-planning priority-area hotspot endemic-area center-of-origin center-of-diversity evolutionary-significant-unit management-unit population metapopulation source-sink-dynamics demography vital-rates survival fecundity generation-time population-growth-rate carrying-capacity density-dependence regulation limiting-factor environmental-stochasticity demographic-stochasticity genetic-stochasticity inbreeding-depression outbreeding-depression genetic-diversity heterozygosity allelic-richness effective-population-size genetic-drift gene-flow migration isolation-by-distance isolation-by-resistance landscape-genetics population-genomics phylogeography historical-demography coalescent-theory approximate-Bayesian-computation species-distribution-model ecological-niche-model habitat-suitability bioclimatic-envelope climate-envelope niche-conservatism niche-evolution realized-niche fundamental-niche biotic-interaction competition predation parasitism mutualism commensalism amensalism facilitation apparent-competition indirect-interaction trophic-cascade top-down-control bottom-up-control mesopredator-release keystone-species ecosystem-engineer foundation-species dominant-species characteristic-species indicator-species umbrella-species flagship-species surrogate-species focal-species target-species pest-species invasive-species naturalized-species alien-species non-native-species introduced-species cryptogenic-species range-shift poleward-shift elevational-shift phenological-shift temporal-mismatch trophic-mismatch phenology seasonality voltinism univoltine bivoltine multivoltine partial-generation prolonged-diapause aestivation hibernation overwintering overwintering-strategy cold-hardiness freeze-tolerance freeze-avoidance supercooling cryoprotectant thermal-biology thermoregulation behavioral-thermoregulation microclimate-selection habitat-selection oviposition-site-selection host-selection mate-choice sexual-selection sperm-competition cryptic-female-choice reproductive-isolation prezygotic-isolation postzygotic-isolation speciation allopatric-speciation sympatric-speciation parapatric-speciation peripatric-speciation reinforcement hybridization introgression hybrid-zone cline ecotone contact-zone secondary-contact exogenous-selection endogenous-selection ecological-speciation mutation-order-speciation sexual-conflict sexual-dimorphism sexual-size-dimorphism sexual-dichromatism polymorphism color-polymorphism morph phase gregarious-phase solitary-phase density-dependent-polyphenism reaction-norm genotype-environment-interaction plasticity canalization genetic-assimilation acclimation acclimatization hardening stress-response heat-shock-protein oxidative-stress hypoxia desiccation starvation immune-response innate-immunity humoral-immunity cellular-immunity encapsulation nodulation phagocytosis melanization antimicrobial-peptide phenoloxidase prophenoloxidase lysozyme defensin cecropin diptericin attacin immune-gene immune-pathway Toll-pathway Imd-pathway JAK-STAT-pathway NF-κB relish dorsal immune-memory specific-immunity transgenerational-immune-priming gut-microbiome symbiosis obligate-symbiont facultative-symbiont primary-symbiont secondary-symbiont vertical-transmission horizontal-transmission mixed-mode-transmission nutritional-symbiosis defensive-symbiosis digestive-symbiosis detoxification metabolism biosynthesis vitamin-synthesis amino-acid-synthesis steroid-synthesis cuticle-synthesis chitin-synthesis molting ecdysis ecdysteroid juvenile-hormone insulin-signaling TOR-signaling nutrient-sensing energy-storage lipid-metabolism carbohydrate-metabolism protein-metabolism flight-metabolism respiration tracheal-system spiracle gas-exchange water-balance osmoregulation excretion Malpighian-tubule hindgut rectum cryptonephridial-system ion-transport water-reabsorption nitrogenous-waste uric-acid urea ammonia detoxification-enzyme cytochrome-P450 glutathione-S-transferase carboxylesterase mixed-function-oxidase resistance insecticide-resistance acaricide-resistance herbicide-resistance antibiotic-resistance resistance-management resistance-evolution resistance-mechanism target-site-resistance metabolic-resistance behavioral-resistance cuticular-resistance resistance-allele resistance-gene fitness-cost fitness-benefit pleiotropy trade-off life-history-trade-off allocation resource-allocation energy-allocation time-allocation foraging optimal-foraging central-place-foraging patch-use marginal-value-theorem predator-avoidance antipredator-defense masquerade Batesian-mimicry Müllerian-mimicry automimicry intraspecific-mimicry intersexual-mimicry aggressive-mimicry social-parasitism brood-parasitism kleptoparasitism defense-behavior thanatosis death-feigning startle-display deimatic-display eyespot deflection-mark autotomy reflex-bleeding regurgitation defensive-secretion venom toxin allomone kairomone synomone semiochemical pheromone sex-pheromone aggregation-pheromone alarm-pheromone trail-pheromone territorial-pheromone recognition-pheromone signature-mixture cuticular-hydrocarbon volatile-organic-compound olfaction gustation mechanoreception thermoreception hygroreception photoreception vision compound-eye ommatidium rhabdom visual-pigment opsin color-vision polarization-vision motion-detection optomotor-response phototaxis photoperiodism circadian-rhythm biological-clock entrainment zeitgeber circannual-rhythm photoperiod day-length critical-day-length critical-photoperiod diapause-induction diapause-termination diapause-maintenance diapause-development endocrine-control neuroendocrine corpus-allatum corpus-cardiacum prothoracic-gland ecdysiotropin ecdysiostatin allatostatin allatotropin neuropeptide hormone hormone-receptor signal-transduction gene-expression transcription-factor regulatory-gene structural-gene gene-network gene-regulatory-network developmental-gene Hox-gene homeobox segment-polarity-gene gap-gene pair-rule-gene maternal-effect-gene zygotic-gene embryonic-development embryogenesis cleavage blastoderm gastrulation segmentation tagmosis appendage-development imaginal-disc holometabolous complete-metamorphosis larva pupa adult apolysis teneral sclerotization tanning cuticle exoskeleton epicuticle procuticle exocuticle endocuticle resilin sclerotin chitin protein lipid wax cement-layer wax-layer surface-lipid waterproofing anti-wetting anti-fouling self-cleaning structural-color pigmentary-color ommin pteridine carotenoid melanin papiliochrome flavonoid anthocyanin betalain iridescence photonic-crystal diffraction-grating thin-film-interference multilayer-reflector scattering Tyndall-scattering Rayleigh-scattering Mie-scattering non-iridescent-structural-color biochrome biofluorescence bioluminescence luciferin luciferase photoprotein bioluminescent-system counter-illumination burglar-alarm lure communication mate-recognition predator-deterrence aposematism warning-coloration honest-signal dishonest-signal signal-evolution signal-design receiver-psychology sensory-bias sensory-exploitation sensory-trap amplifier attenuator signal-efficacy signal-honesty handicap-principle index-signal conventional-signal assessment-signal territorial-signal dominance-signal submissive-signal aggressive-signal courtship-signal copulatory-signal postcopulatory-signal antagonistic-coevolution chase-away-selection sensory-drive reproductive-character-displacement genetic-exchange admixture hybrid-fitness hybrid-breakdown hybrid-vigor heterosis genetic-load mutational-meltdown founder-effect bottleneck population-expansion invasion-genetics propagule-pressure introduction-effort establishment spread lag-phase exponential-growth logistic-growth Allee-effect demographic-Allee-effect component-Allee-effect strong-Allee-effect weak-Allee-effect critical-population-size minimum-viable-population extinction-risk population-viability-analysis stochastic-model deterministic-model individual-based-model agent-based-model spatially-explicit-model metapopulation-model source-sink-model integrated-population-model state-space-model hierarchical-model Bayesian-model machine-learning artificial-intelligence computer-vision image-recognition automated-identification deep-learning neural-network convolutional-neural-network transfer-learning data-augmentation training-set validation-set test-set accuracy precision recall F1-score confusion-matrix receiver-operating-characteristic area-under-curve model-selection model-validation cross-validation bootstrapping permutation-test null-model randomization-test Monte-Carlo-simulation Markov-chain-Monte-Carlo Gibbs-sampling Metropolis-Hastings-algorithm Bayesian-inference prior-distribution posterior-distribution likelihood-function evidence model-comparison Bayes-factor information-criterion Akaike-information-criterion corrected-AIC Bayesian-information-criterion deviance-information-criterion Watanabe-Akaike-information-criterion cross-validation-information-criterion stacking model-averaging ensemble-model prediction forecasting scenario-analysis sensitivity-analysis uncertainty-analysis propagation-of-uncertainty error-budget confidence-interval credible-interval prediction-interval tolerance-interval statistical-power sample-size effect-size significance-test hypothesis-testing null-hypothesis alternative-hypothesis type-I-error type-II-error false-positive false-negative multiple-comparison Bonferroni-correction false-discovery-rate q-value p-value significance-level alpha-level beta-level statistical-test parametric-test nonparametric-test robust-test exact-test asymptotic-test bootstrap-test jackknife resampling subsampling leave-one-out k-fold stratified-sampling balanced-sampling imbalanced-data class-imbalance oversampling undersampling synthetic-minority-oversampling SMOTE ADASYN cost-sensitive-learning ensemble-method bagging boosting random-forest gradient-boosting XGBoost LightGBM CatBoost support-vector-machine kernel-method radial-basis-function polynomial-kernel linear-kernel sigmoid-kernel decision-tree classification-tree regression-tree pruning cost-complexity-pruning minimum-description-length rule-based-classifier association-rule frequent-pattern apriori-algorithm FP-growth sequential-pattern temporal-pattern spatial-pattern spatiotemporal-pattern time-series-analysis trend-analysis seasonal-decomposition autoregressive-model moving-average-model ARIMA SARIMA exponential-smoothing state-space-model Kalman-filter particle-filter hidden-Markov-model dynamic-Bayesian-network recurrent-neural-network long-short-term-memory gated-recurrent-unit transformer attention-mechanism self-attention multi-head-attention encoder decoder encoder-decoder-architecture sequence-to-sequence-model generative-model generative-adversarial-network variational-autoencoder normalizing-flow diffusion-model energy-based-model Boltzmann-machine restricted-Boltzmann-machine deep-belief-network autoencoder denoising-autoencoder sparse-autoencoder contractive-autoencoder variational-inference expectation-maximization maximum-likelihood maximum-a-posteriori maximum-entropy Occam's-razor parsimony model-complexity overfitting underfitting bias-variance-tradeoff regularization L1-regularization L2-regularization elastic-net dropout early-stopping batch-normalization layer-normalization group-normalization instance-normalization weight-decay mixup cutout cutmix random-erasing autoaugment fast-autoaugment population-based-augmentation neural-architecture-search automated-machine-learning hyperparameter-optimization grid-search random-search Bayesian-optimization sequential-model-based-optimization multi-fidelity-optimization knowledge-distillation teacher-student-model model-compression quantization knowledge-transfer domain-adaptation few-shot-learning zero-shot-learning one-shot-learning meta-learning learning-to-learn metric-learning siamese-network triplet-loss contrastive-learning self-supervised-learning unsupervised-learning semi-supervised-learning weakly-supervised-learning active-learning online-learning incremental-learning continual-learning lifelong-learning curriculum-learning multi-task-learning multi-modal-learning cross-modal-learning representation-learning feature-learning embedding-learning manifold-learning dimensionality-reduction principal-component-analysis t-SNE UMAP word-embedding sentence-embedding document-embedding knowledge-graph-embedding graph-neural-network graph-convolutional-network graph-attention-network message-passing-neural-network relational-graph-convolutional-network inductive-learning transductive-learning homophily heterophily graph-isomorphism Weisfeiler-Lehman-test subgraph-isomorphism graph-matching network-alignment network-embedding node-embedding edge-embedding graph-classification node-classification link-prediction graph-generation graph-synthesis molecular-generation de-novo-design inverse-design retrosynthesis reaction-prediction property-prediction quantitative-structure-activity-relationship QSAR quantitative-structure-property-relationship QSPR molecular-descriptor fingerprint Morgan-fingerprint extended-connectivity-fingerprint circular-fingerprint atom-pair-fingerprint topological-torsion-fingerprint pharmacophore shape-similarity electrostatic-similarity docking scoring-function binding-affinity-prediction protein-ligand-interaction protein-protein-interaction protein-structure-prediction AlphaFold protein-folding contact-prediction distance-prediction angle-prediction torsion-prediction secondary-structure-prediction tertiary-structure-prediction quaternary-structure-prediction protein-design protein-engineering directed-evolution rational-design computational-design de-novo-protein-design enzyme-design catalytic-antibody ribozyme aptamer DNAzyme synthetic-biology genetic-circuit metabolic-engineering metabolic-flux-analysis flux-balance-analysis genome-scale-metabolic-model dynamic-metabolic-model kinetic-modeling stoichiometric-modeling constraint-based-modeling optimization linear-programming mixed-integer-linear-programming quadratic-programming nonlinear-programming dynamic-programming stochastic-programming robust-optimization multi-objective-optimization Pareto-optimality evolutionary-algorithm genetic-algorithm genetic-programming differential-evolution particle-swarm-optimization ant-colony-optimization simulated-annealing tabu-search variable-neighborhood-search iterated-local-search greedy-randomized-adaptive-search scatter-search path-relinking memetic-algorithm hyper-heuristic metaheuristic local-search neighborhood-search hill-climbing random-walk randomized-search Monte-Carlo-tree-search upper-confidence-bound Thompson-sampling multi-armed-bandit contextual-bandit reinforcement-learning policy-gradient actor-critic Q-learning deep-Q-network policy-iteration value-iteration temporal-difference-learning SARSA expected-SARSA double-Q-learning dueling-Q-network prioritized-experience-replay distributed-reinforcement-learning impala A3C asynchronous-advantage-actor-critic PPO proximal-policy-optimization TRPO trust-region-policy-optimization DDPG deep-deterministic-policy-gradient TD3 twin-delayed-deep-deterministic-policy-gradient SAC soft-actor-critic model-based-reinforcement-learning model-predictive-control guided-policy-search imitation-learning inverse-reinforcement-learning apprenticeship-learning behavior-cloning dataset-aggregation DAgger generative-adversarial-imitation-learning third-person-imitation-learning one-shot-imitation-learning meta-reinforcement-learning hierarchical-reinforcement-learning option skill subgoal intrinsic-motivation curiosity-driven-exploration empowerment information-gain prediction-error novelty-seeking diversity-seeking multi-agent-reinforcement-learning mean-field fictitious-play correlated-equilibrium Nash-equilibrium game-theory mechanism-design auction-theory incentive-design social-choice-theory voting-theory fair-division matching-theory market-design algorithmic-game-theory computational-social-choice computational-complexity NP-completeness NP-hardness approximation-algorithm approximation-ratio inapproximability fixed-parameter-tractability parameterized-complexity kernelization treewidth graph-minor forbidden-minor-characterization well-quasi-ordering Robertson-Seymour-theorem graph-structure-theorem bidimensionality-theory meta-theorem Courcelle's-theorem automata-theory finite-automaton pushdown-automaton Turing-machine computability decidability halting-problem Rice's-theorem Gödel's-incompleteness-theorems lambda-calculus combinatory-logic type-theory proof-theory model-theory set-theory forcing large-cardinal axiom-of-choice continuum-hypothesis independence-result consistency-strength reverse-mathematics constructive-mathematics intuitionistic-logic modal-logic temporal-logic epistemic-logic deontic-logic description-logic ontology knowledge-representation semantic-web linked-data RDF SPARQL OWL knowledge-graph entity-linking relation-extraction event-extraction coreference-resolution named-entity-recognition part-of-speech-tagging dependency-parsing constituency-parsing semantic-parsing natural-language-inference textual-entailment natural-language-generation machine-translation summarization question-answering dialogue-system conversational-AI chatbot virtual-assistant speech-recognition speech-synthesis speaker-recognition emotion-recognition sentiment-analysis opinion-mining aspect-based-sentiment-analysis target-dependent-sentiment-analysis stance-detection rumor-detection fake-news-detection fact-checking claim-verification evidence-retrieval argument-mining persuasion-detection deception-detection personality-prediction mental-health-detection suicide-prevention crisis-intervention social-media-mining network-analysis community-detection influence-maximization information-diffusion cascade-modeling epidemic-modeling SEIR-model SIR-model agent-based-epidemic-model compartmental-model network-epidemic-model metapopulation-epidemic-model spatial-epidemic-model stochastic-epidemic-model branching-process renewal-equation generation-interval serial-interval incubation-period latent-period infectious-period basic-reproduction-number effective-reproduction-number herd-immunity-threshold vaccination-coverage vaccine-efficacy vaccine-effectiveness breakthrough-infection waning-immunity immune-escape variant-of-concern variant-of-interest variant-under-monitoring phylogenetic-analysis molecular-clock-analysis phylodynamics viral-evolution antigenic-drift antigenic-shift zoonotic-spillover reservoir-host intermediate-host amplifying-host dead-end-host vector-borne-disease mosquito-borne-disease tick-borne-disease flea-borne-disease lice-borne-disease midge-borne-disease sandfly-borne-disease tsetse-borne-disease blackfly-borne-disease triatomine-borne-disease kissing-bug Chagas-disease trypanosomiasis leishmaniasis malaria dengue yellow-fever Zika-virus chikungunya West-Nile-virus Japanese-encephalitis tick-borne-encephalitis Lyme-disease Rocky-Mountain-spotted-fever ehlichiosis anaplasmosis babesiosis tularemia plague murine-typhus epidemic-typhus endemic-typhus scrub-typhus Q-fever trench-fever bartonellosis cat-scratch-disease rat-bite-fever leptospirosis brucellosis anthrax melioidosis glanders tularaemia francisellosis coxiellosis rickettsiosis orientia-infection ehrlichiosis neoehrlichiosis neorickettsiosis anaplasmataceae rickettsiaceae coxiellaceae bartonellaceae brucellaceae francisellaceae pasteurellaceae legionellaceae chlamydiaceae mycoplasmataceae ureaplasmataceae spiroplasmataceae achaenoplasmataceae entomoplasmataceae haloplasmataceae tenericutes mollicutes bacteroidetes fusobacteria spirochaetes synergistetes deferribacteres thermotogae aquificae caldiserica caldithrix deferrisoma desulfurobacterium thermovibrio thermocrinis hydrogenobacter sulfurihydrogenibium persephonella hydrogenobaculum hydrothermus thermothrix sulfuricurvum sulfurimonas sulfurovum thiovulum thiomicrospira pseudomonas vibrio aeromonas photobacterium aliivibrio gracilibacillus halobacillus halomonas chromohalobacter cobetia salinicola kushneria halotalea halovibrio salinivibrio thioalkalivibrio thiohalophilus ectothiorhodospira halorhodospira thiorhodospira halochromatium thioflavicoccus marichromatium thiocapsa lamprocystis thiodictyon thiopedia amoebobacter thiocystis chromatium allo-chromatium thermochromatium rhabdochromatium thiobaca thiohalocapsa halocapsa thiolamprovum thioploca thiomargarita beggiatoa methylococcus methylomonas methylomicrobium methylosinus methylocystis methylocella methylocapsa methylacidiphilum verrucomicrobia planctomycetes chlamydiae lentisphaerae kiritimatiellaeota calditrichaeota fervidibacteria
Synanthedonini
clearwing moths
Synanthedonini is a tribe of clearwing moths within the family Sesiidae, characterized by wasp-mimicking appearance and larval boring habits in plant tissues. Members exhibit diverse host plant associations across multiple families including Lauraceae, Fagaceae, Rosaceae, Fabaceae, and Proteaceae. The tribe has been documented across North America, Central and South America, Taiwan, and other regions, with several species recognized as economically significant pests of ornamental and native plants. Molecular studies using COI barcoding support species-level identification but reveal phylogenetic complexities, including the atypical placement of some genera previously separated based on morphology.
clearwing-moth Sesiidae boring-larvae host-plant-associations DNA-barcoding Hymenoptera-mimicry pest-species biological-control
Tricholochmaea
Tricholochmaea is a genus of leaf beetles in the family Chrysomelidae, comprising 21 described species and two subspecies. Members are known as skeletonizing leaf beetles and flea beetles, feeding on plant foliage in a characteristic pattern that leaves leaf veins intact. The genus includes several species associated with specific host plants, such as the cherry leaf beetle (T. cavicollis), Pacific willow leaf beetle (T. decora), and blueberry leaf beetle (T. vaccinii). Taxonomic treatment varies, with some authors treating Tricholochmaea as a synonym of Pyrrhalta.
leaf-beetles Chrysomelidae skeletonizing-beetles flea-beetles North-America herbivores pest-species host-specific taxonomic-uncertainty
Umbonia
Thorn Treehoppers
Umbonia is a genus of treehoppers in the family Membracidae, characterized by pronounced pronotal modifications that form thorn-like or horn-like projections. The genus occurs primarily in the Neotropics, with species distributed from the southern United States through Central America to South America. Members of this genus exhibit subsocial behavior, with females providing extended parental care to nymphal offspring. Several species, particularly Umbonia crassicornis, have been studied intensively for their complex maternal care systems involving vibrational communication between mothers and offspring. The genus includes approximately 16 described species, with Umbonia crassicornis being the most commonly encountered and economically significant species.
subsocial-behavior parental-care vibrational-communication sexual-dimorphism pronotal-modification pest-species Neotropical-distribution invasive-species-(Puerto-Rico)
Umbonia crassicornis
Thorn bug, Thorn Treehopper
Umbonia crassicornis is a treehopper species in the family Membracidae, notable for its pronounced sexual dimorphism in pronotal horn structure and extensive maternal care. Adult females deposit approximately 100 eggs into plant stems or under bark, then remain with the developing nymphs until adulthood—a rare subsocial behavior among insects. Nymphs and adults form dense aggregations, with offspring communicating danger to the mother through synchronized vibrational signals that trigger her antipredator defense. The species feeds on plant sap and is occasionally a pest of ornamental and fruit trees in southern Florida and Puerto Rico.
subsocial-behavior maternal-care vibrational-communication sexual-dimorphism thorn-mimicry pest-species introduced-species
Vespula alascensis
Alaska yellowjacket, American yellowjacket
Vespula alascensis is a social wasp native to North America, recognized as a distinct species in 2010 after being treated as a taxonomic synonym of Vespula vulgaris for over a century. It belongs to the 'vulgaris group' of yellowjackets, characterized by scavenging behavior and ground-nesting habits. The species is known to occur across northern and western regions of the continent, with confirmed records from Vermont to Hawaii.
social-wasp yellowjacket ground-nesting scavenger pest-species vulgaris-group
Vespula squamosa
southern yellowjacket
Vespula squamosa, the southern yellowjacket, is a social wasp native to eastern North America, ranging from the Great Lakes to the Atlantic coast and south through Mexico to Guatemala. The species exhibits remarkable social plasticity: most colonies are annual and headed by a single queen, but in warmer climates colonies may become perennial, persisting multiple years and reaching extreme sizes with multiple reproductive queens (polygyny). Approximately 85% of colonies begin through facultative social parasitism, with V. squamosa queens usurping nests of V. maculifrons (eastern yellowjacket) or V. vidua (widow yellowjacket). Workers are approximately 13 mm long with black and yellow striping; queens are larger and more orange in coloration. The species is expanding its range northward and is now common in the Mid-Atlantic region.
social-wasp yellowjacket social-parasite polygyny perennial-colony range-expansion stinging-insect pest-species Vespidae Hymenoptera facultative-parasitism alarm-pheromone queen-polymorphism climate-change-response