| occurrence and evolutionary significance of a california encephalitis-like virus in aedes squamiger (diptera: culicidae). | more than 12,000 aedes increpitus dyar and 4,600 aedes squamiger (coquillett) were tested for the presence of arboviruses to test the hypothesis that there is a coevolutionary relationship between aedes (ochlerotatus) mosquitoes and california serogroup viruses. five strains of a california encephalitis-like virus were isolated from adults reared from larvae of ae. squamiger collected in january 1989 from a coastal salt marsh at morro bay, san luis obispo county, california. viruses were isolate ... | 1991 | 1941932 |
| efficacy of cypermethrin for the control of mosquito larvae and pupae, and impact on non-target organisms, including fish. | in laboratory tests, cypermethrin was highly toxic to mosquito larvae and pupae. it was more toxic at low temperatures after a 24 hr exposure. larvae of aedes stimulans were less susceptible than culex restuans. technical cypermethrin was more toxic than an emulsifiable concentrate formulation. in outdoor simulated pools cypermethrin 40% ec was consistently effective against larvae and pupae of ae. stimulans at 10 g ai/ha and culex spp. at 50 g ai/ha. when stickleback fish were tested, no mortal ... | 1986 | 2466953 |
| virus-vector-host relationships of aedes stimulans and jamestown canyon virus in a northern indiana enzootic focus. | collections of hematophagous diptera at the kingsbury state fish and wildlife area in northern indiana between 1982 and 1984 yielded 118,972 mosquitoes from which 5 isolates of jamestown canyon virus and 3 isolates of trivittatus virus were obtained. all jamestown canyon isolates were from aedes stimulans, including 1 from a pool of newly emerged males and 2 from pools of newly emerged females. these 3 isolates suggest that jamestown canyon virus is transovarially transmitted by ae. stimulans. a ... | 1986 | 2878626 |
| species composition and feeding success of mosquitoes attracted to caged dogs in indiana. | a field study using caged dogs in mosquito bait traps was conducted in eastcentral indiana to determine the species composition of mosquitoes coming to feed. fourteen species of mosquitoes from 5 genera were collected; aedes trivittatus predominated. feeding success rates were measured as the percentage of mosquitoes collected that had a fresh blood meal. the species having the highest rates were: culex erraticus, aedes stimulans and ae. trivittatus. aedes vexans and cx. pipiens/restuans had mar ... | 1985 | 2906663 |
| ticks and biting insects infected with the etiologic agent of lyme disease, borrelia burgdorferi. | members of 18 species of ticks, mosquitoes, horse flies, and deer flies were collected in southeastern connecticut and tested by indirect fluorescent-antibody staining methods for borrelia burgdorferi, the etiologic agent of lyme disease. an infection rate of 36.2% (116 tested), recorded for immature ixodes dammini, exceeded positivity values for all other arthropod species. prevalence of infection for hematophagous insects ranged from 2.9% of 105 hybomitra lasiophthalma to 14.3% of seven hybomi ... | 1988 | 3170711 |
| effect of low temperature on feeding rate of aedes stimulans larvae and efficacy of bacillus thuringiensis var. israelensis (h-14). | experiments were conducted to determine the effects of low temperature (0 and 4 degrees c), vs. a high temperature (22 degrees c), on the feeding rate of aedes stimulans larvae, and their susceptibility to bacillus thuringiensis var. israelensis (h-14) (b.t.i.). third-instar ae. stimulans slowed but did not halt feeding at 0 and 4 degrees c compared to 22 degrees c. susceptibility of larvae, as measured by lc50 values, to b.t.i. was highest at 22 degrees c (lc50 = 0.1 ppm), and lower at 4 degree ... | 1995 | 7616175 |
| isolation of jamestown canyon and snowshoe hare viruses (california serogroup) from aedes mosquitoes in western massachusetts. | three isolates of jamestown canyon virus and one isolate of snowshoe hare virus (california serogroup) were obtained from adult aedes females collected in western massachusetts in 1982. jamestown canyon virus was isolated from aedes abserratus/punctor once, and from aedes intrudens twice. snowshoe hare virus was isolated from aedes stimulans group mosquitoes. la crosse encephalitis (lac) virus was not isolated from 1,552 adult aedes triseriatus, nor from 22,557 aedes triseriatus larvae. however, ... | 1993 | 8350066 |
| phylogeny of amblyospora (microsporida: amblyosporidae) and related genera based on small subunit ribosomal dna data: a possible example of host parasite cospeciation. | small subunit ribosomal rna (ssu rrna) gene sequences were analyzed for six species and four genera of microsporidia from mosquito hosts; amblyospora stimuli (aedes stimulans), amblyospora californica (culex tarsalis), amblyospora sp. (culex salinarius), edhazardia aedis (aedes aegypti), culicosporella lunata (culex pilosus), and parathelohania anophelis (anopheles quadrimaculatus). comparison of these sequences to those of other microsporidia show that these sequences are longer with the ssu rr ... | 1998 | 9538024 |
| epizootiology of amblyospora stimuli (microsporidiida: amblyosporidae) infections in field populations of a univoltine mosquito, aedes stimulans (diptera: culicidae), inhabiting a temporary vernal pool. | the epizootiology of the microsporidium amblyospora stimuli was studied in natural populations of a univoltine mosquito, aedes stimulans, inhabiting a temporary vernal pool over an 18-year period. the yearly prevalence of benign oenocytic infections in adult females was variable, ranging from 1.0 to 9.6% (mean = 5.1%). the yearly prevalence of transovarially transmitted meiospore infections in larval populations was consistently lower but less variable, ranging from 1.3 to 5.9% (mean = 3.5%). me ... | 1999 | 10486233 |
| effects of absence of saliva on blood feeding by mosquitoes. | the salivary glands of aedes stimulans (walker) are the source of an antigen which produces typical bite reactions in men and laboratory rabbits. if the main salivary duct is cut, the reaction is not produced when the mosquito bites. lack of saliva does not affect the intake or movement of blood into the mid-gut, nor does it prevent the development of eggs. the presence of ain a-nesthetic component in saliva is suggested. | 1960 | 14403733 |
| infectivity and pathogenicity of a novel baculovirus, cuninpv from culex nigripalpus (diptera: culicidae) for thirteen species and four genera of mosquitoes. | the infectivity and pathogenicity of newly discovered baculovirus, cuninpv (family baculoviridae, genus nucleopolyhedrovirus) originally isolated from the mosquito culex nigripalpus theobald, was evaluated in laboratory bioassys against thirteen species and four genera of mosquitoes native to the northeastern u.s. purified virus at a dosage rate of 1.6 x 10(7) occlusion bodies/ml with 10 mm mg2+ added was used in exposures with second through fourth instars at temperatures ranging from 17 to 27 ... | 2003 | 14680119 |
| entomopathogenic fungi for mosquito control: a review. | fungal diseases in insects are common and widespread and can decimate their populations in spectacular epizootics. virtually all insect orders are susceptible to fungal diseases, including dipterans. fungal pathogens such as lagenidium, coelomomyces and culicinomyces are known to affect mosquito populations, and have been studied extensively. there are, however, many other fungi that infect and kill mosquitoes at the larval and/or adult stage. the discovery, in 1977, of the selective mosquito-pa ... | 2004 | 15861235 |
| mosquito surveillance for west nile virus in southeastern wisconsin--2002. | in 2001, west nile virus (wnv) was identified among dead american crows and bluejays in five counties in southeastern wisconsin. in response to the introduction of wnv, a pilot mosquito surveillance program was initiated in these five southeastern wisconsin counties during the summer of 2002. forty sites were selected for surveillance one night each week during a 17-week period. mosquitoes were collected in carbon dioxide-baited light traps and gravid traps. during the study period 31,419 mosqui ... | 2003 | 15931283 |
| novel rna sequences associated with late male killing in homona magnanima. | maternally inherited female-biased sex ratios have been documented in many invertebrate species. one cause of such biased sex ratios is male killing, i.e. only males die. in most species, male killing occurs during embryonic stages (early male killing) and is associated with cytoplasmic bacteria, including wolbachia, spiroplasma, rickettsia, flavobacteria and gamma proteobacteria. however, the oriental tea tortrix, homona magnanima, is one of the few species in which male death occurs in the lar ... | 2008 | 18302997 |
| effect of sugar on male anopheles gambiae mating performance, as modified by temperature, space, and body size. | abstract: | 2009 | 19386114 |
| blood feeding patterns of mosquitoes: random or structured? | abstract: | 2010 | 20205866 |
| host associations of mosquitoes at eastern equine encephalitis virus foci in connecticut, usa. | eastern equine encephalitis virus (eeev) is a highly pathogenic mosquito-borne arbovirus, with active transmission foci in freshwater hardwood swamps in eastern north america, where enzootic transmission is maintained between the ornithophilic mosquito, culiseta melanura, and wild passerine birds. the role of other locally abundant mosquito species in virus transmission and their associations with vertebrate hosts as sources of blood meals within these foci are largely unknown but are of importa ... | 2016 | 27577939 |
| jamestown canyon virus disease in the united states-2000-2013. | jamestown canyon virus (jcv) is a mosquito-borne orthobunyavirus in the california serogroup that can cause an acute febrile illness, meningitis, or meningoencephalitis. we describe epidemiologic and clinical features for jcv disease cases occurring in the united states during 2000-2013. a case of jcv disease was defined as an acute illness in a person with laboratory evidence of a recent jcv infection. during 2000-2013, we identified 31 cases of jcv disease in residents of 13 states. the median ... | 2015 | 26033022 |
| anthropogenic impacts on mosquito populations in north america over the past century. | the recent emergence and spread of vector-borne viruses including zika, chikungunya and dengue has raised concerns that climate change may cause mosquito vectors of these diseases to expand into more temperate regions. however, the long-term impact of other anthropogenic factors on mosquito abundance and distributions is less studied. here, we show that anthropogenic chemical use (ddt; dichlorodiphenyltrichloroethane) and increasing urbanization were the strongest drivers of changes in mosquito ... | 2016 | 27922001 |
| thermally induced genital appendages on mosquitoes. | temperatures above those normally present in larval sites of certain mosquitoes (for example, aedes stimulans) cause larvae of potential males to be feminized in all degrees. certain combinations of temperatures will affect these larvae so that an abnormal pair of genital appendages consistently appears in addition to the usual pair. these appendages appear to be masculine and are presumed to come from imaginal discs that are latent in present-day diptera. | 1963 | 14043361 |
| suppression of male characteristics of mosquitoes by thermal means. | dimorphism in aedes stimulans, a northern floodwater mosquito, may be decreased possibly to obliteration by exposing larvae for most of their lives to abnormally high temperature. determiners for maleness fail to express themselves when larvae are exposed to a temperature of 29 degrees c throughout their lives. not only are male characteristics eliminated, but normal female ones such as ovaries, spermathecae, and cerci develop. the resultant adult is structurally a female. forms showing characte ... | 1961 | 17819001 |
| geospatial analysis and seasonal distribution of west nile virus vectors (diptera: culicidae) in southern ontario, canada. | the purpose of this study was to establish geospatial and seasonal distributions of west nile virus vectors in southern ontario, canada using historical surveillance data from 2002 to 2014. we set out to produce mosquito abundance prediction surfaces for each of ontario's thirteen west nile virus vectors. we also set out to determine whether elevation and proximity to conservation areas and provincial parks, wetlands, and population centres could be used to improve our model. our results indicat ... | 2018 | 29597256 |
| the evolving puzzle of autosomal versus y-linked male determination in musca domestica. | sex determination is one of the most rapidly evolving developmental pathways, but the factors responsible for this fast evolution are not well resolved. the house fly, musca domestica, is an ideal model for studying sex determination because house fly sex determination is polygenic and varies considerably between populations. male house flies possess a male-determining locus, the m factor, which can be located on the y or x chromosome or any of the five autosomes. there can be a single m or mult ... | 2014 | 25552607 |
| thermal stress and anomalous development of mosquitoes (diptera: culicidae). i. effect of constant temperature on dimorphism of adults of aedes stimulans. | | 1963 | 14066572 |
| dimorphic development of transplanted juvenile gonads of mosquitoes. | potentially masculine gonads of aedes stimulans (diptera: culicidae) can be induced to become ovaries by exposing larvae to elevated temperatures. a juvenile gonad when transplanted into another larva will become a testis or an ovary in response to stimuli which are wholly intrinsic in the implanted gonad. humoral factors in the hemocoel of the larval host do not influence the direction of morphogenesis of the implanted organ. | 1965 | 14241414 |
| thermal stress and anomalous development of mosquitoes (diptera: culicidae). v. effect of temperature on embryogeny of aedes stimulans. | | 1965 | 14330752 |
| an iridescent virus infecting the mosquito aedes stimulans. | | 1970 | 5435795 |
| longevity of embryos of aedes stimulans. | | 1972 | 5063723 |
| enzyme variation in some mosquito species related to aedes (ochlerotatus) stimulans (diptera: culicidae). | | 1986 | 3735350 |
| the species composition and seasonal distribution of mosquitoes in vernal pools in suburban montreal, quebec. | a study was conducted in the spring and summer of 1998 to determine the invertebrate community in vernal pools on the western portion of the island of montreal. this paper examines the mosquitoes (diptera: culicidae) found in 10 pools. fifteen species in 4 genera (aedes, anopheles, culex, and ochlerotatus) were collected and the seasonal distribution of each species was determined. ochlerotatus stimulans was the most abundant species. two peaks occurred in larval abundance, in late april and ear ... | 2003 | 14710734 |
| first record of aedes stimulans from louisiana. | the first confirmed collection of aedes stimulans in louisiana was made in st. tammany parish, la. a single adult female was collected by a large-bore aspirator in march 2011, and identified by microscopic and molecular methods. notes are provided on the morphology, location, habitat, and potential mosquito associates that may be found with ae. stimulans. | 2014 | 25843137 |
| beaver ponds in upstate new york as a source of anthropophilic mosquitoes. | surveys for anthropophilic mosquitoes conducted over a 30-year period in proximity of beaver ponds in 3 research sites in otsego county, new york, indicate that none of the ponds seemed to support significant populations of permanent water mosquitoes. the only site sampled before impoundment previously had supported large populations of aedes punctor and aedes stimulans and lesser numbers of other "northern aedes"-type anthropophilic species. | 2001 | 11345428 |
| a checklist of the mosquitoes of idaho and two new state records: ochlerotatus decticus and ochlerotatus euedes. | this checklist of the mosquitoes of idaho updates the list of brothers (1971), adding 5 species. from the literature. 3, ochlerotatus mercurator, ochlerotatus nevadensis, and ochlerotatus punctor, are added and 1, ochlerotatus stimulans, is deleted. we are reporting 2 new state records, ochlerotatus decticus and ochlerotatus euedes, and extending their ranges westward in the united states. one new genus and 2 new subgenera are also added. | 2003 | 14524548 |
| laboratory evaluation of acanthocyclops vernalis and diacyclops bicuspidatus thomasi (copepoda: cyclopidae) as predators of aedes canadensis and ae. stimulans (diptera: culicidae). | predatory effectiveness of two vernal-pool copepods, acanthocyclops vernalis (fischer) and diacyclops bicuspidatus thomasi (forbes), was assessed against cohabiting larvae of aedes canadensis (theobold) and aedes stimulans (walker) in laboratory bioassays. d. b. thomasi did not exhibit predatory behavior toward first instars, even when both organisms were confined in 35-mm wells for 7 d and alternative food sources were not available. a. vernalis did feed on early instars, but its effectiveness ... | 1992 | 1460638 |
| genesis of the reproductive system of mosquitoes. iii. supernumerary male genitalia. | the origin of supernumerary gonapophyses in a polymorphic variant of aedes stimulans has been determined histologically. genotypic males (mm) will develop gonapophyses on abdominal segment 8 when primordia on the larvae are subjected to a high-to-low thermal regimen. the gonapophyses develop from the normally evanescent podal buds of the eighth imaginal disc. their course of development is similar to that of the normal gonapophyses that arise from the podal buds of the ninth imaginal disc. | 1971 | 30366488 |
| energy reserves in aedes canadensis, aedes stimulans, aedes provocans (diptera: culicidae), and mochlonyx cinctipes (diptera: chaoboridae) in connecticut. | | 1987 | 3585926 |