West-nile-virus

Guides

Aedes japonicus
Asian bush mosquito, Asian rock pool mosquito
Aedes japonicus is an invasive mosquito species native to East Asia, first described from Tokyo in 1901. It has established populations in North America, Europe, and Hawaii through human-mediated transport of eggs in used tires and containers. The species is a competent vector for West Nile virus, La Crosse virus, Japanese encephalitis virus, and St. Louis encephalitis virus, with experimental evidence for dengue and chikungunya viruses. Its cold-hardiness, ecological plasticity, and ability to exploit diverse container habitats contribute to its invasive success.
invasive-species arbovirus-vector container-breeder day-biter cold-hardy medical-entomology West-Nile-virus La-Crosse-virus Japanese-encephalitis-virus
Aedes vexans
inland floodwater mosquito, tomguito
Aedes vexans is a cosmopolitan floodwater mosquito native to North America, Europe, Asia, and Africa, and is now established in Australia. It is frequently the most abundant mosquito species across much of its range, particularly in northern latitudes. Females are aggressive human biters active at dusk, while males feed exclusively on nectar. The species is a documented vector for multiple pathogens including dog heartworm, Tahyna virus, and West Nile virus, and has demonstrated laboratory competence for Zika virus transmission. Its eggs survive winter in dry flood-prone soils, hatching when inundated by rainfall.
mosquito vector floodwater nuisance-pest arbovirus Dirofilaria-immitis Tahyna-virus West-Nile-virus Zika-virus cosmopolitan-distribution climate-change range-expansion pollinator predator-prey integrated-mosquito-management
Coquillettidia perturbans
Cattail Mosquito
Coquillettidia perturbans is a mosquito species with a broad intercontinental distribution spanning Africa, Asia, Australia, Europe, North America, and South America. It is a documented vector of Eastern equine encephalomyelitis virus and West Nile virus, with particular significance in disease ecology due to its ability to fly long distances and feed on large mammals including humans. The species exhibits a distinctive larval adaptation: specialized siphons that pierce aquatic plant aerenchyma to obtain oxygen, allowing larvae and pupae to remain submerged and avoid surface predators and insecticides.
vector mosquito medical-entomology veterinary-entomology Eastern-equine-encephalomyelitis West-Nile-virus marsh-habitat Typha-association plant-piercing-respiration North-America range-expansion
Culex
typical mosquitoes
Culex is a diverse genus of mosquitoes comprising over 1,000 species across more than 20 subgenera. Several species serve as important disease vectors, transmitting arboviruses including West Nile virus, Japanese encephalitis, and St. Louis encephalitis, as well as filariasis and avian malaria. The genus occurs worldwide except for extreme northern temperate regions and is the most commonly encountered mosquito in many major U.S. cities. While most Culex species exhibit characteristic raft-forming egg-laying behavior, at least one species, Culex antillummagnorum, has been documented with unique aerial and "barrage" oviposition strategies.
vector mosquito disease-vector arbovirus West-Nile-virus urban-pest freshwater-breeder holometabolous diapause invasive-species
Culex coronator
Culex coronator is a highly invasive Neotropical mosquito species first described from Trinidad and Tobago in 1906. It was first detected in the United States in Louisiana in 2004 and has since spread rapidly across the southeastern USA, now documented in 14 states and 386 counties. The species has been implicated as a potential vector of West Nile virus and other arboviruses, with laboratory studies confirming vector competence under certain temperature conditions. Its rapid expansion and adaptation to urban environments pose significant public health concerns.
invasive-species vector West-Nile-virus urban-adapter Neotropical-origin ornithophilic container-breeder public-health mosquito Culicidae
Culex erraticus
Erratic Mosquito
Culex erraticus is a mosquito species in the family Culicidae, subgenus Melanoconion. It is a documented vector of eastern equine encephalitis virus (EEEV) and West Nile virus, with females exhibiting aggressive biting behavior toward birds, mammals, amphibians, and reptiles. The species shows distinctive seasonal host-shifting behavior, feeding primarily on ectothermic hosts during warmer months and shifting to endothermic hosts during cooler periods. It has been observed overwintering as adults in gopher tortoise burrows in Florida and in swamp habitats elsewhere.
vector arbovirus EEEV West-Nile-virus overwintering gopher-tortoise host-shift swamp wetland
Culex nigripalpus
Florida SLE mosquito
Culex nigripalpus, commonly known as the Florida SLE mosquito, is a medium-sized, dark-colored blood-feeding mosquito and a significant disease vector in subtropical regions. It serves as the primary enzootic vector of Saint Louis encephalitis (SLE) virus to wild birds and the primary epidemic vector to humans in Florida. The species has been demonstrated capable of transmitting West Nile virus, Eastern equine encephalitis virus, dog heartworm, and Avian malaria. Its habit of feeding on both birds and mammals gives it substantial potential for zoonotic transmission from birds to humans.
vector arbovirus Saint-Louis-encephalitis West-Nile-virus mosquito Culicidae Florida subtropical zoonotic public-health
Culex pipiens
common house mosquito, northern house mosquito
Culex pipiens is a globally distributed mosquito species native to Africa, Asia, and Europe, now found in temperate regions worldwide except Antarctica. It is the type species for the genus Culex and one of the most common mosquitoes in human habitats in the northern hemisphere. The species includes two morphologically indistinguishable but ecologically distinct forms: C. p. form pipiens, which lives above ground and feeds primarily on birds, and C. p. form molestus, which lives underground and bites mammals including humans. Hybrids between these forms exhibit intermediate feeding behavior and are implicated as bridge vectors for West Nile virus transmission from birds to humans.
mosquito vector West-Nile-virus urban-pest medical-entomology Culex-pipiens-complex form-pipiens form-molestus autogeny diapause bridge-vector
Culex quinquefasciatus
Southern House Mosquito
Culex quinquefasciatus, the southern house mosquito, is a medium-sized brown mosquito distributed throughout tropical and subtropical regions worldwide. It is a significant disease vector, transmitting pathogens including West Nile virus, St. Louis encephalitis virus, lymphatic filariasis (Wuchereria bancrofti), and potentially Zika virus. The species is taxonomically part of the Culex pipiens species complex and is one of the most abundant peridomestic mosquitoes globally. Its genome was sequenced in 2010, revealing 18,883 protein-coding genes.
vector mosquito West-Nile-virus filariasis urban nocturnal insecticide-resistance genome-sequenced
Culex restuans
White-dotted Mosquito
Culex restuans is a medium-sized brown mosquito distributed across North America, Central America, and the Caribbean. It is a significant vector of West Nile virus and St. Louis encephalitis, serving as both an enzootic vector among birds and a potential bridge vector to mammals. Adults are occasionally called the 'white-dotted mosquito' due to two white dots sometimes present on the dorsal scutum, though these are not reliable identification characters. The species is frequently confused with Culex pipiens, requiring detailed morphological examination for accurate identification.
vector West-Nile-virus St.-Louis-encephalitis mosquito Culex North-America
Culex stigmatosoma
Banded Foul Water Mosquito
Culex stigmatosoma is a mosquito species distributed across the southwestern United States and northern South America. Bloodmeal analysis from southern California populations reveals it feeds primarily on birds (71.3%) with opportunistic mammalian feeding (28.7%, including humans 1.4%). The species exhibits seasonal host-shifting behavior, increasing mammalian feeding in late summer and early fall. It is a confirmed vector of West Nile virus and considered a potential bridge vector between enzootic bird reservoirs and humans.
mosquito vector West-Nile-virus bridge-vector ornithophilic seasonal-host-shifting
Culex tarsalis
Western Encephalitis Mosquito
Culex tarsalis is a mosquito species distributed across North America, with particular importance in the western United States as a vector of multiple arboviruses. The species is distinguished by black and white banding on the legs. It serves as the primary vector for West Nile virus in agricultural areas of California and transmits Saint Louis encephalitis virus, Western equine encephalitis virus, and avian malaria parasites. Some populations exhibit autogeny, the ability to produce eggs without blood feeding. The species has been the subject of extensive genetic research, with a reference genome published in 2020.
vector mosquito arbovirus West-Nile-virus encephalitis medical-entomology autogeny diapause
Ochlerotatus cantator
brown saltmarsh mosquito
Ochlerotatus cantator, commonly known as the brown saltmarsh mosquito, is a floodplain mosquito species native to eastern North America. It was reclassified from Aedes cantator to Ochlerotatus cantator following taxonomic revision of the genus. The species is particularly abundant in coastal and inland salt marsh habitats, where it serves as a significant nuisance biter and potential disease vector.
mosquito vector nuisance-pest floodplain-species salt-marsh West-Nile-virus Eastern-equine-encephalitis
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 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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 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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 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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 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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