Vector
Guides
Mansonia
Mansonia mosquito
Mansonia is a genus of mosquitoes in the family Culicidae. Adults are large, dark-colored mosquitoes with distinctive iridescent scaling on wings and legs. The genus is notable for its unique larval and pupal biology: immature stages attach to submerged rootlets of aquatic plants using modified siphons to obtain oxygen, rather than surfacing to breathe. Several species serve as vectors of human and animal pathogens, including filarial worms and arboviruses. The genus has a global distribution, with particular abundance in tropical and subtropical regions associated with permanent freshwater habitats.
Mansoniini
Mansoniini is a tribe of mosquitoes comprising approximately 83 species in two genera: Mansonia (25 species) and Coquillettidia (58 species). Members exhibit unique larval biology, using aquatic plants as respiratory substrates rather than surfacing directly for air. Adults display preferentially crepuscular and nocturnal hematophagic activity. Several species have been implicated as vectors for arboviruses including Venezuelan Equine Encephalitis virus, Eastern Equine Encephalitis virus, and Mayaro virus. The tribe shows strong sensitivity to seasonal meteorological variation, with temperature and precipitation directly influencing population dynamics.
Microtechnites
garden fleahopper
Microtechnites is a genus of plant bugs in the family Miridae containing approximately six described species. The genus includes the garden fleahopper (M. bractatus), an economically significant agricultural pest with a broad host range spanning at least 17 plant families. Species in this genus are distributed across the Americas from Canada to Argentina. M. bractatus has been extensively studied for its developmental biology and host plant interactions.
Micrutalis
Micrutalis is a genus of treehoppers in the family Membracidae, containing at least 30 described species distributed throughout the Americas. Members of this genus are small to medium-sized treehoppers characterized by their distinctive pronotal morphology. Several species have been documented as vectors of plant pathogens, including Micrutalis malleifera, which transmits Pseudo-Curly Top Virus. The genus exhibits host plant associations primarily with herbaceous plants, including species in Solanaceae.
Micrutalis malleifera
pseudo-curly top treehopper
Micrutalis malleifera is a treehopper species in the family Membracidae, commonly known as the pseudo-curly top treehopper. It is the only known member of its family capable of transmitting a plant disease agent, specifically the Tomato pseudo-curly top virus (genus Topocuvirus). The species has been documented from the southern United States through Central America, with confirmed host plant associations including Physalis walteri and Solanum elaeagnifolium.
Monochamus carolinensis
Carolina Pine Sawyer
Monochamus carolinensis is a longhorn beetle in the subfamily Lamiinae, commonly known as the Carolina Pine Sawyer. It is a significant vector of the pinewood nematode Bursaphelenchus xylophilus, the causative agent of pine wilt disease. The species is native to North America, occurring in Canada and the United States, and has been detected in China. Adults are attracted to blacklights and are associated with pine forests.
Musca
house flies, face flies
Musca is a genus of calyptrate flies in the family Muscidae, containing approximately 70 species worldwide. The genus includes Musca domestica, the common house fly, one of the most widespread and synanthropic insects on Earth. Musca species are characterized by their association with human habitation and livestock, with larvae developing in decaying organic matter. Adults are medium-sized, robust flies with distinctive head morphology including aristate antennae and well-developed chaetotaxy.
Musca autumnalis
face fly, autumn housefly
Musca autumnalis, commonly known as the face fly or autumn housefly, is a nonbiting muscid fly native to the Palearctic region that was introduced to North America in the 1940s–1950s. Adults are obligate pests of cattle and horses, feeding on ocular and nasal secretions, tears, saliva, and blood from wounds. The species exhibits pronounced seasonal population dynamics, with peak abundance in late summer and autumn, and undergoes facultative diapause in adults triggered by short photoperiod and cool temperatures. Larval development occurs exclusively in fresh cattle dung, where larvae feed on microbial flora and fauna.
Musca domestica
house fly, common house fly
Musca domestica is a cosmopolitan synanthropic fly and the most abundant insect in confined cattle operations. Adults are small (6–7 mm), gray with four dark longitudinal stripes on the thorax and creamy yellow abdominal sides. They do not bite but feed on blood, sweat, tears, saliva, and other bodily fluids, causing cattle to exhibit defensive behaviors including ear flapping, head shaking, and feeding hesitancy. The species completes development from egg to adult in as little as two weeks under optimal conditions, with up to 12 generations annually in temperate climates. Females deposit 75–150 eggs per batch in decaying organic matter, particularly manure and rotting vegetation. House flies are mechanical vectors of over 200 pathogens including E. coli, and can infest cattle wounds with maggots.
Muscina
false stable flies
Muscina is a genus of muscid flies comprising approximately 27 species with worldwide distribution. The genus includes several synanthropic species frequently associated with livestock facilities, manure, and human structures. M. stabulans (false stable fly) is the most extensively studied species, serving as a model for flight biomechanics research and forensic entomology. Members of this genus are notable for their epidemiological significance as mechanical vectors of pathogens, forensic utility in post-mortem interval estimation, and facultative predatory behavior by third-instar larvae.
Muscina stabulans
False Stable Fly
Muscina stabulans, commonly known as the false stable fly, is a cosmopolitan synanthropic muscid fly distributed worldwide. Adults are medium-sized flies averaging 8 mm in length, distinguished by four dark thoracic stripes, partially reddish-brown legs, and a pale spot above the thorax. The species exhibits strong synanthropic tendencies, with higher abundance in urban-suburban environments compared to rural areas. It has significant economic and public health importance as a mechanical vector of pathogens, a facultative predator of house fly larvae in poultry facilities, and a forensic indicator species for post-mortem interval estimation. Rare cases of intestinal myiasis in humans have been documented.
Neoaliturus tenellus
Beet Leafhopper
Neoaliturus tenellus, commonly known as the beet leafhopper, is a significant agricultural pest in western North America. This leafhopper species is a documented vector of Candidatus Phytoplasma trifolii (CPt) and beet curly top virus (BCTV), pathogens that affect potato, sugar beet, and other vegetable and seed crops. The species exhibits complex seasonal movement patterns between crop and noncrop hosts, utilizing weedy vegetation for overwintering and summer development. Its population dynamics and pathogen transmission ecology have been studied extensively in the Columbia River Basin and southern New Mexico to improve pest management forecasting.
Neophilaenus
spittlebugs
Neophilaenus is a genus of spittlebugs (family Aphrophoridae) containing approximately 10 described species distributed primarily across the Palearctic region. Nymphs are known for producing characteristic foam masses ("cuckoo spit") that provide protection and moisture retention during development. Several species, particularly N. campestris and N. lineatus, have been extensively studied due to their role as vectors of the plant pathogen Xylella fastidiosa, which threatens Mediterranean agriculture including olive, almond, and grapevine crops. The genus exhibits temperature-dependent phenology, with development rates and adult emergence timing varying predictably with altitude and latitude.
Neotoxoptera
Neotoxoptera is a genus of aphids in the family Aphididae, comprising at least seven described species. The genus is best known for N. formosana, the onion aphid, a significant agricultural pest of Allium crops. Species in this genus are oligophagous, specializing on plants in the Allium genus, and are distributed across Asia, North America, South America, Europe, Oceania, and Africa.
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.
Ochlerotatus communis
Ochlerotatus communis is a mosquito species distributed across northern regions of North America, Europe, and Asia. Studies have documented its role as a vector for orbiviruses, with isolations of Kevo orbivirus and Mobuck virus from specimens collected in Finland. Research on male specimens indicates elevated catalase enzyme activity during the teneral period and early post-emergence, suggesting physiological adaptations to oxidative stress during metamorphosis.
Ochlerotatus diantaeus
Ochlerotatus diantaeus is a mosquito species in the family Culicidae, originally described as Aedes diantaeus in 1913. The species has undergone taxonomic reclassification, now placed in the genus Ochlerotatus. It occurs across parts of Europe, northern Asia, and North America. Like other members of its genus, females require blood meals for egg production.
Ochlerotatus dorsalis
Salt Marsh Mosquito
Ochlerotatus dorsalis is a Holarctic mosquito species with a transcontinental distribution spanning the Palearctic and Nearctic regions. Genetic studies have identified two highly distinctive COI mtDNA phylogroups corresponding to these regions, suggesting Pleistocene vicariance of an ancestral range due to geographical barriers and climatic changes. The species is epidemiologically relevant as a potential pathogen vector.
Ochlerotatus implicatus
Ochlerotatus implicatus is a mosquito species in the family Culicidae, first described by Vockeroth in 1954. It has been documented in Arctic and sub-Arctic regions of North America, where recent surveillance studies have recorded new distribution records for this species. The species belongs to the Aedes genus complex, which includes many floodwater mosquitoes. Research in northern Canada detected Jamestown Canyon virus in this species, indicating potential vector competence for California serogroup viruses.
Ochlerotatus provocans
Ochlerotatus provocans is a mosquito species in the family Culicidae, first described by Walker in 1848. The species has been documented in North America, with confirmed presence in Vermont. It is part of the Ochlerotatus genus, which was formerly treated as a subgenus of Aedes but is now recognized as distinct by many authorities. The species is known to occur north of the 60th parallel, placing it within Arctic and sub-Arctic regions where it has been investigated as a potential vector for Jamestown Canyon virus.
Ochlerotatus scapularis
Aedes scapularis
Ochlerotatus scapularis is a neotropical mosquito species with expanding distribution, now established in mainland Florida after first detection in the Florida Keys in 1945. The species exhibits strong anthropophilic feeding behavior, with documented human blood meals comprising 83% of engorged females. It is known to transmit multiple pathogens of medical and veterinary importance, including yellow fever virus, Venezuelan equine encephalitis virus, and Dirofilaria immitis. Recent ecological niche modeling predicts potential for further northward expansion along the US Gulf Coast.
Ochlerotatus sierrensis
Ochlerotatus sierrensis is a mosquito species in the family Culicidae, first described by Lynch-Arribalzaga in 1891. The species belongs to the genus Ochlerotatus, a group of floodwater mosquitoes whose taxonomy has undergone revision from formerly being classified within Aedes. As with other Ochlerotatus species, females require blood meals for egg development while males feed on nectar.
Ochlerotatus sollicitans
eastern saltmarsh mosquito, salt marsh mosquito
Ochlerotatus sollicitans, commonly known as the eastern saltmarsh mosquito, is a floodwater mosquito species native to coastal regions of eastern North America. It is a significant pest species known for aggressive biting behavior and daytime activity. The species is a competent vector for several arboviruses including Eastern equine encephalitis virus and West Nile virus. Its populations can explode following tidal flooding or heavy rainfall events in salt marsh habitats.
Ochlerotatus togoi
Ochlerotatus togoi is a salt-tolerant euryhaline mosquito that inhabits coastal rock pools with salinities ranging from freshwater to seawater. It is a known vector of flaviviruses and filarial worms affecting humans, including Wuchereria bancrofti and Brugia species. Rising sea levels have expanded its suitable habitat, increasing public health concerns in coastal regions. Laboratory studies show complex salinity-dependent life history traits: highest oviposition preference occurs in freshwater, yet optimal adult development occurs at moderate salinities around 25 psu.
Ochlerotatus triseriatus
eastern treehole mosquito, treehole mosquito
Ochlerotatus triseriatus, the eastern treehole mosquito, is a container-breeding mosquito native to North America. It is the primary enzootic vector of La Crosse virus, the leading cause of arboviral encephalitis in children in the United States. Larvae develop in natural tree holes and artificial water-holding containers, feeding on microbial communities associated with decaying organic matter. The species exhibits strong density-dependent survival, with larval crowding significantly reducing per-capita survival rates—a trait that has important implications for mosquito control strategies.
Ochlerotatus trivittatus
Ochlerotatus trivittatus is a mosquito species in the Culicidae family, originally described by Coquillett in 1902 as Culex trivittatus. It belongs to the Ochlerotatus Group, a clade of related mosquitoes found in the Americas. The species has been documented across North America, Middle America, and South America. Genetic studies have examined its relationship to other Ochlerotatus Group species to clarify species boundaries within this taxonomically complex group.
Oeciacus vicarius
American swallow bug, cliff swallow bug, swallow nest bug
Oeciacus vicarius is a blood-feeding cimicid bug specialized as an ectoparasite of colonially nesting American cliff swallows (Petrochelidon pyrrhonota). It is widely distributed across North America, where it inhabits swallow nests in natural and anthropogenic structures. The species is a known vector of Buggy Creek Virus (Alphavirus, Togaviridae). Though it will bite humans when encountered, it does not establish persistent infestations in human dwellings.
Ollarianus
Ollarianus is a genus of leafhoppers in the family Cicadellidae, subfamily Deltocephalinae, tribe Platymetopiini. The genus was established by Ball in 1936. The best-documented species, Ollarianus balli, is a rare leafhopper in Jamaica and a known vector of disease-associated mycoplasma-like organisms affecting plants. Members of this genus are associated with leguminous host plants.
Oncometopia
sharpshooters
Oncometopia is a genus of sharpshooters (leafhoppers in the family Cicadellidae) found in North and South America, erected by Carl Stål in 1869. Species range from 9.4 to 15.0 mm in length and are characterized by distinctive morphological features including a moderately produced head, coriaceous forewings with apical membranes, and specialized hindleg tarsomere proportions. Several species are economically important as vectors of plant pathogens, particularly Xylella fastidiosa, which causes diseases such as phony peach disease and citrus variegated chlorosis.
Oncometopia nigricans
Black-winged Sharpshooter
Oncometopia nigricans, commonly known as the Black-winged Sharpshooter, is a leafhopper species in the family Cicadellidae, tribe Proconiini. It is a suspected vector of lethal yellowing disease of coconut palms, a devastating phytoplasma disease affecting coconut production. The species has been documented in Florida and Brazil (Bahia), with studies focusing on its molting patterns and longevity across various host plants.
Ornithodoros turicata
relapsing fever tick
Ornithodoros turicata is a soft tick (family Argasidae) found in the midwestern and southwestern United States. It is the primary vector of Borrelia turicatae, the spirochete agent of tick-borne relapsing fever in humans. The tick has been documented feeding on at least 27 vertebrate host species across mammals, birds, reptiles, and amphibians. It exhibits autogenous reproduction (egg production without a bloodmeal) and transovarial transmission of spirochetes, enabling pathogen maintenance across generations.
Ornithomya
bird louse flies
Ornithomya is a genus of louse flies (family Hippoboscidae) comprising approximately 31 species of obligate avian ectoparasites. All species are blood-feeding parasites of birds, primarily Passeriformes. Adults are dorsoventrally flattened with reduced or absent wings in many individuals. The genus exhibits adenotrophic viviparity, with larvae developing entirely within the female and deposited as fully mature third instars that immediately pupate. Species show varying degrees of host specificity correlated with bird nesting ecology.
Ornithonyssus
bird mites, fowl mites, rat mites
Ornithonyssus is a genus of hematophagous mites in the family Macronyssidae. The genus includes economically important poultry pests such as the northern fowl mite (O. sylviarum) and tropical fowl mite (O. bursa), as well as the tropical rat mite (O. bacoti) which affects rodents and can bite humans. Species in this genus are obligate blood-feeders that complete their entire life cycle on the host or in close association with host nesting material. Several species have significant veterinary and medical importance due to their impacts on poultry production and potential to cause human dermatitis.
Ornithonyssus bacoti
tropical rat mite
Ornithonyssus bacoti, commonly called the tropical rat mite, is a hematophagous mesostigmatid mite in the family Macronyssidae. It is an obligate blood-feeding ectoparasite primarily associated with rats and other rodents, but will opportunistically bite humans and domestic animals when primary hosts are unavailable. The mite is of significant medical and veterinary importance due to its role in causing rat mite dermatitis in humans and its potential to vector several pathogens. It exhibits remarkable survival capabilities, traveling hundreds of feet to locate hosts and surviving extended periods without feeding.
Orthotomicus
Orthotomicus is a genus of bark beetles in the family Curculionidae, subfamily Scolytinae, containing approximately nine described species. The genus is primarily associated with coniferous trees, particularly pines (Pinus spp.) and cedars (Cedrus spp.). Several species, notably Orthotomicus erosus (Mediterranean pine engraver) and O. laricis, have become significant forest pests through native population outbreaks and invasive range expansions. Species in this genus are known for their associations with ophiostomatoid fungi, which they vector and which contribute to tree decline.
Orthotomicus erosus
Mediterranean pine engraver
Orthotomicus erosus, the Mediterranean pine engraver, is a bark beetle native to the Mediterranean region, southern Europe, Asia, and North Africa. It is primarily a secondary pest that colonizes stressed, weakened, or recently dead pine trees, but can reach outbreak levels and attack healthy trees during drought conditions or following fire. The species has expanded its range through domestic and international trade, with established populations in South America (Argentina and Uruguay) and South Africa. It vectors multiple ophiostomatoid fungi, including Ophiostoma ips, which contribute to blue staining and tree decline.
Paraphlepsius irroratus
bespeckled leafhopper, irrorate leafhopper, brown-speckled leafhopper, irrorate spittlebug
Paraphlepsius irroratus is a leafhopper species in the family Cicadellidae, commonly known as the bespeckled leafhopper. It is a documented vector of plant pathogens, specifically the clover phyllody mycoplasmalike organism (phytoplasma) and Peach X-disease. The species has been successfully reared in laboratory conditions, revealing broad host plant associations and a development period of 31.8–59.2 days across five nymphal instars.
Parthenolecanium
soft scales, lecanium scales
Parthenolecanium is a genus of soft scale insects in the family Coccidae. These hemipterans are dome-shaped, sap-feeding pests of woody plants including oaks, fruit trees, and grapevines. Several species are significant urban tree pests, notably P. quercifex (oak lecanium scale) and P. corni (European fruit lecanium scale). The genus exhibits variation in reproductive mode: some species reproduce by parthenogenesis, while P. corni reproduces sexually (gamogenesis). Many species have been documented as vectors of grapevine viruses.
Pediculidae
Ape Lice
Pediculidae is a family of sucking lice (suborder Anoplura) that includes obligate ectoparasites of primates. The family contains Pediculus humanus, the human head and body louse, which exists as two morphologically similar but ecologically distinct forms: P. h. capitis (head louse) and P. h. humanus (body louse). Pediculidae also includes P. schaeffi, which infests chimpanzees and bonobos. These lice are wingless, dorsoventrally flattened insects with specialized mouthparts for piercing skin and feeding on blood. They complete their entire life cycle on the host and are of significant medical importance as vectors of epidemic typhus, trench fever, and relapsing fever.
Pediculus
sucking lice
Pediculus is the sole genus in the family Pediculidae, comprising obligate ectoparasitic sucking lice that infest primates. The genus includes species specialized to exploit distinct microhabitats on their hosts: Pediculus humanus humanus (body louse) inhabits clothing and body hair, while P. humanus capitis (head louse) is restricted to scalp hair. These insects are dorsoventrally flattened, wingless, and possess highly modified legs with clawed tarsi adapted for gripping hair shafts. All species feed exclusively on blood, making them significant pests and disease vectors of humans.
Pediculus humanus
Human Louse
Pediculus humanus is an obligate ectoparasite of humans comprising two subspecies: P. h. humanus (body louse) and P. h. capitis (head louse). This wingless insect has been associated with humans throughout recorded history and serves as a vector for several serious human diseases including epidemic typhus, trench fever, and relapsing fever. The body louse is larger and more robust than the head louse, with females capable of laying up to 295 eggs in their lifetime under optimal conditions. Both subspecies feed exclusively on human blood and complete their entire life cycle on the host.
Pediculus humanus humanus
Human Body Louse, Body Louse
Pediculus humanus humanus is a wingless, dorsoventrally flattened insect that parasitizes humans exclusively. Unlike its sibling subspecies P. h. capitis (head louse), it inhabits clothing and bedding, moving to skin only for blood meals. It serves as the primary vector for epidemic typhus, trench fever, and louse-borne relapsing fever—diseases that have shaped human history, particularly during wars and famines. Genetic studies confirm head and body lice are conspecific, with body lice representing a more recently derived form adapted to clothing.
Pentalonia
Pentalonia is a genus of aphids in the family Aphididae, established by Coquerel in 1859. The genus contains at least four recognized species distributed across tropical and subtropical regions. Pentalonia nigronervosa, the banana aphid, is the most extensively studied species due to its role as the primary vector of Banana Bunchy Top Virus (BBTV), a devastating disease of banana crops worldwide. Recent morphometric and molecular studies have clarified that P. nigronervosa and P. caladii are distinct cryptic species with different host plant preferences.
Perkinsiella
Perkinsiella is a genus of delphacid planthoppers in the family Delphacidae, containing more than 30 described species. Several species are significant agricultural pests, particularly of sugarcane. Perkinsiella saccharicida and P. vastatrix are known vectors of Fiji disease virus (FDV), which causes Fiji leaf gall in sugarcane. The genus has a broad distribution across Africa, Asia, Australasia, and the Pacific Islands.
Philaenus
meadow spittlebug, spittlebug, froghopper
Philaenus is a genus of spittlebugs in the family Aphrophoridae containing eight described species. The genus is best known for Philaenus spumarius (meadow spittlebug), a widespread insect in the Northern Hemisphere and the primary vector of Xylella fastidiosa in Europe. Most species exhibit striking color polymorphism with up to sixteen distinct phenotypes including dark, pale, mottled, and striped patterns. Nymphs produce protective foam masses from excreted xylem fluid and glandular secretions. The genus has been extensively studied for genetic diversity, climate change responses, and vector ecology.
Phloeosinus armatus
Phloeosinus armatus is a bark beetle in the subfamily Scolytinae, the largest species in its genus. Native to the Middle East and eastern Mediterranean, it has been introduced to Italy, Russia, and North America. The species colonizes Cupressus sempervirens (Mediterranean cypress), forming gallery systems on trunks and large branches. It acts as a vector for phytopathogenic fungi, including Seiridium cardinale, the agent of cypress canker disease.
Phortica
Phortica is a genus of small flies in the family Drosophilidae, subfamily Steganinae. Several species are medically significant as biological vectors of the zoonotic eyeworm Thelazia callipaeda, which causes ocular infections in humans, domestic animals, and wildlife. The genus includes at least five species in Europe and the Middle East, with P. variegata and P. okadai being the best-documented vectors. These flies exhibit unusual zoophilic feeding behaviors, including lachryphagy (tear-feeding) in adult males of some species. The genus has gained increasing attention due to climate-driven range shifts and expanding transmission of thelaziosis.
Phortica variegata
variegated fruit fly
Phortica variegata is a small vinegar fly in the family Drosophilidae, distinguished by its unusual zoophilic behavior. Unlike most drosophilids, adult males feed on the lacrimal secretions (tears) of mammals, including humans, dogs, foxes, and other carnivores. This lachryphagous behavior makes it the primary European vector of Thelazia callipaeda, a zoonotic eyeworm that causes ocular infections in mammals. The species is native to Europe and has been introduced to the United States, where it has demonstrated vector competence for the parasite. Climate change is projected to alter its distribution significantly, with suitable habitats shifting toward Mediterranean coastal regions while declining in central-southern-eastern European transitional areas.
Piesma
ash-grey leaf bugs
Piesma is a genus of small ash-grey leaf bugs in the family Piesmatidae, serving as the type genus of the family. Members are less than 4 mm in length and occur across North America, Europe, Africa, and Asia. The genus is distinguished from the similar genus Parapiesma by a notch in the side margins of the pronotum. Species in this genus are primarily phytophagous and include economically significant pests such as Piesma quadratum, which transmits viral and rickettsia-like pathogens to sugar beet and related crops.
Proconiini
sharpshooters
Proconiini is a large tribe of xylem-feeding leafhoppers (Cicadellidae: Cicadellinae) comprising approximately 422 species in 58 genera, restricted to the New World. Members are commonly known as sharpshooters due to their rapid, directed flight patterns. The tribe includes major agricultural pests and vectors of Xylella fastidiosa, a phytopathogenic bacterium causing diseases in citrus, grapes, almonds, and other crops. Proconiini species exhibit distinctive morphological adaptations including brachyptery in high-altitude Andean forms and unique egg brochosome production for offspring protection.