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laboratory transmission of japanese b encephalitis virus by seven species (three genera) of north american mosquitoes.in the present studies ten common species of western north american mosquitoes have been tested for their ability to act as vectors of japanese b encephalitis virus (see summary table xii). the strain of japanese b encephalitis virus which was used was adapted to direct mouse brain passage, probably a disadvantage, but no freshly isolated strain was available. of the ten species of mosquitoes tested, seven were demonstrated to be laboratory vectors. these seven species represent three genera (cu ...194619871524
six generations of culex pipiens without a blood meal. 194620283804
notes on the experimental infection of culex pipiens var. pallens coq. with microfilaria malayl brug. 194620294627
prophase behavior a key to the mechanism of somatic reduction in culex pipiens. 194621066144
failure of aedes aegypti and culex pipiens to transmit plasmodium vaughani. 194720294091
[not available]. 194818874696
experiments on the role of the chicken mite, dermanyssus gallinae. and the mosquito in the epidemiology of st. louis encephalitis.the present experimental results concern primarily the question, whether or not mosquitoes feeding on chickens having viremia, as a result of the bite of infected mites, can acquire the virus of st. louis encephalitis and whether or not mosquitoes thus infected, can transmit the virus to chickens and hamsters. during the course of the investigation, 7 species of mosquitoes of 3 genera were infected with the virus in one or two or all of three ways: by feeding on a suspension of infected mouse br ...194818911174
relationships between certain populations of culex pipiens linnaeus and culex quinquefasciatus say in the united states. 194918108524
experimental transmission of japanese b encephalitis virus by culex tritaeniorhynchus and culex pipiens var. pallens, suspected natural vectors. 194918135589
biometrical studies on intergradation in the genitalia of certain populations of culex pipiens and culex quinquefasciatus in the united states. 194915391982
a possible interpretation of the apparent interference across the centromere found by callan and montalenti in culex pipiens. 194915408913
[biologic races of culex pipiens]. 194915436000
[genetic study of two characters of pigmentation of culex autogenicus roubaud]. 195024539234
on histamine in the gnat (culex pipiens). 195114829293
biometrical notes on the hybridization of culex pipiens l. and c. quinquefasciatus say. 195114861729
some effects of colchicine on the metamorphosis of culex pipiens linn. 195114936152
[possibility of crossing of the culex pipiens l with culex autogenicus r]. 195214949955
[genetic determinism of sterility in the cross-breeding of various strains of culex autogenicus roubaud]. 195212979357
[a tunisian biotype of the common mosquito culex pipiens l]. 195212988012
comparative development of plasmodium relictum oocysts in anopheles quadrimaculatus, a. albimanus, and culex pipiens. 195313035579
[proboscis/palpi relationship in biotypes of the culex pipiens complex and their hybrids]. 195413181222
sexual isolation between populations of the culex pipiens complex in north america. 195413184369
paper chromatography as a tool for mosquito taxonomy: the culex pipiens complex. 195413185274
egg production in culex pipiens pallens coquillett. i. seasonal changes. 195413211088
egg production in culex pipiens pallens coquillett. ii. influence of light and temperature on activity of females. 195413211089
egg production in culex pipiens pallens coquillett. iii. growth and degeneration of ovarian follicles. 195413211092
egg production in culex pipiens pallens coquillett. iv. influence of breeding conditions on wing length, body weight and follicle production. 195413211093
egg production in culex pipiens pallens coquillett. v. relation to fattening and biting activity. 195413211105
[crossing experiments with european and american strains of the culex pipiens complex]. 195413227354
[new studies on the biotypes of culex pipiens linné]. 195413269100
[new contribution to the study of the culex pipiens complex in tunisia]. 195414378927
[studies on autogenic oviposition of culicidae. i. numerical data on oviposition by the isolated virgin of culex pipiens autogenicus roubaud]. 195513270504
incorporation of phosphorus-32 into the malpighian tubes during the metamorphosis of culex pipiens. 195513272721
[hybrids of the biotypes of culex pipiens linnaeus]. 195513249177
[autogenous and non-autogenous oogenesis in culex pipiens l. with contribution to the problem of differentiation of autogenous and non-autogenous females by the number of egg tubes and by their wing length]. 195613325760
field trials of larvicides for use against culex pipiens fatigans, with a note on the life-cycle of this mosquito. 195613340672
a note on the occurrence of culex (culex) pipiens fatigans in sierra leone. 195613395332
[destruction by ethyl p-nitrophenylphosphonothioic acid of the larvae of the house mosquito, culex pipiens autogenicus]. 195613396520
[the evolutive cycle of culex pipiens fatigans in experimental conditions. i. ovum stage]. 195613494856
[two cases of gynandromorphism in culex autogenicus roubaud]. 195713498538
[studies on oviposition by autogenesis in mosquitoes. ii. statistical data on the act of oviposition of the fertilized culex pipiens autogenicus female]. 195713500711
[notes on the culex pipiens population of the province of latina]. 195713527765
[studies on egg laying by autogenesis in culicidae. iii. numerical data on egg laying by fertilized females of culex pipiens autogenicus roubaud (many females with one male)]. 195713573780
a comparison of food reserves in autogenous and anautogenous culex pipiens populations. 195713424518
the inheritance of autogeny in the culex pipiens complex of mosquitoes. 195713424524
bionomics and control of culex pipiens fatigans wied. in ceylon.the climatic and housing conditions which favour the breeding of culex pipiens fatigans in ceylon, and its life-cycle and resting-habits, are described. the results of the treatment of breeding-places (mainly catch-pits) and the interior of houses with various insecticides of specific action on larvae or adults, in different preparations and concentrations, are given, and suggestions are made for the control of the mosquito on this island. the fundamental measure for successful control is effici ...195713472415
[peri-micropyle structure of the ovum in culex autogenicus of agro pontino]. 195713485490
experimental studies on the role on the house mosquito, culex pipiens pallens in the transmission of bancroftian filariasis. iii. duration of life of filariae in mosquitoes exposed to winter temperatures. 195813625743
[desoxyribonucleic acid content of the nuclei of various tissues from the mosquito culex pipiens pipiens]. 195813639509
[culex pipiens in algeria]. 195813534801
dieldrin resistance in culex pipiens fatigans in malaya.resistance to insecticides in culex pipiens fatigans has already been reported from two areas in malaya. in penang two years' use of bhc as a larvicide resulted in the development of a strain which was found to have acquired a tenfold resistance to bhc, and also to dieldrin to which it had not been exposed. in singapore, when larval control became unsatisfactory after 6 months' use of a dieldrin emulsion, laboratory experiments confirmed that active resistance to dieldrin had developed. the pres ...195813536808
susceptibility of adults of a malayan strain of culex pipiens fatigans wiedemann to ddt and dieldrin. 195813536812
penang bhc-resistant strain of culex pipiens fatigans. 195813536813
comparison of nutritive reserves in males of autogenous and anautogenous populations of culex pipiens. 195813564357
hybridization of culex pipiens fatigans wiedemann from the philippine islands with american strains of the culex pipiens group (diptera: culicidae). 195813571570
dieldrin resistance in culex pipiens fatigans in north eastern tanganyika. 195813831860
the multiplication of st. louis encephalitis virus in two species of mosquitoes: culex quinque-fasciatus say and culex pipiens linnaeus. 195913835549
[resistance of culex pipiens fatigans to chlorinated hydrocarbons in leopoldville (belgian congo)]. 195913808835
the vector of filariasis in djakarta and its bionomics.the authors present the results of an investigation, carried out in 1956-57 in the rawasari district of djakarta, to determine the vector of bancroftian filariasis and to study its bionomics.culex pipiens fatigans was the only species found to harbour the larvae of wuchereria bancrofti in the area surveyed, and even in this mosquito the infection rate was very low. among 24 271 c. p. fatigans dissected, the rate of infection with larvae of all stages was 1.8% and the rate of infection with larva ...195913810041
[observations on the level of sensitivity to insecticides of several mosquitoes of the mediterranean coastal area. presence of a strain of culex pipiens l. resistant to dieldrin]. 195914399368
speciation by cytoplasmic isolation in the culex pipiens-complex. 195914414640
[elongation of the stages and modification of the viability of culex pipiens by experimental refrigeration]. 195914424710
[resistance of culex pipiens fatigans in belem do para (brazil) to chlorinated insecticides (ddt and dieldrin)]. 195914465309
nitrogen partition in excreta of three species of mosquitoes.adults of three species of mosquitoes, aedes aegypti, anopheles quadrimaculatus and culex pipiens, showed essentially similar patterns of nitrogen output as judged by their excretion of total nitrogen and by their excretion of nitrogen as uric acid, urea, ammonia, amino acid, and protein. about 80 percent of their total nitrogen has been accounted for. substances that seem on analysis to be like glycoprotein have been found in the excreta of the three species.195913658962
the effect of temperature and illumination on mating of culex pipiens pipiens l. and c. p. fatigans wied. 196014430478
inheritance of ddt resistance in a philippine population of culex pipiens fatigans wied. 196014439792
[resistance to insecticides in culex pipiens fatigans wied. and problems of urban hygiene in the cameroons]. 196013773216
the susceptibility of fourth-stage larvae of anopheles gambiae, aedes aegypti and culex pipiens fatigans to some phosphoric acid esters. 196013783589
the physiology of hibernation and its role in the geographical distribution of populations of the culex pipiens complex. 196013837317
[autogeny in populations of the "culex pipiens" in the province of latina]. 196114461185
susceptibility tests in trinidad with anopheles aquasalis curry, aedes aegypti (l.) and culex pipiens fatigans wiedemann, using the standard who mosquito adult test kit.malaria, yellow fever and filariasis eradication programmes in many parts of the world have in recent years become largely dependent on the use of ddt, dieldrin, gamma-bhc and organophosphorus insecticides. it is of vital importance for the success of such programmes, often costly when undertaken on a nation-wide basis, that the insecticides being used are effective against the vectors of these diseases.during 1958 and 1959, susceptibility tests carried out in trinidad using the standard world h ...196113730936
[appearance of autogenesis in the breeding of culex pipiens berbericus roubaud]. 196113741807
members of the culex pipiens series in new caledonia and the new hebrides. 196113758345
the susceptibility of culex pipiens fatigans wiedemann larvae to insecticides in malaya.the levels of susceptibility of c. p. fatigans larvae from four different localities in malaya to ddt, dieldrin, malathion, fenthion, diazinon and sevin have been studied; their toxicity was: diazinon > fenthion > malathion > dieldrin > ddt > sevin.larvae from different localities showed a wide range of susceptibility to the chlorinated hydrocarbon insecticides, dieldrin (40x) and ddt (10x), but the organophosphorus compounds and the carbamate compound, sevin, gave consistent results from all lo ...196213981115
follicular relics in wild-caught culex pipiens fatigans wiedemann in ceylon. 196213991285
the susceptibility of culex pipiens fatigans to residual insecticides with particular reference to the taveta-pare area of east africa.observations have been made on culex pipiens fatigans in the taveta-pare area in east africa from 1954 to 1961, during which time dieldrin was applied to local houses over a 3(1/2)-year period as part of an experiment in malaria control. at the end of the period of residual spraying the numbers of c. p. fatigans had been reduced by two-thirds in the taveta area, but in the south pare area, only some 160 km away, this mosquito was twice as numerous as before spraying. the results of susceptibilit ...196213993106
the transmission of brugia sp. through culex pipiens fatigans. the effect of age and prior non-infective blood meals on the infection rate. 196213885755
population increases in culex pipiens fatigans wiedemann. a review of present knowledge.the author reviews the growing body of evidence that urban populations of culex pipiens fatigans have increased extensively during recent years in both africa and asia. two main factors seem to be responsible-the spread of urbanization, providing favourable habitats for this essentially urban mosquito; and the increasing use of residual insecticides, leading to disregard of conventional sanitary measures and a consequent proliferation of suitable culicine breeding-places. in addition, it is poss ...196213933890
some considerations relating to the role of culex pipiens fatigans wiedemann in the transmission of human filariasis.this paper is concerned mainly with the relationship between microfilarial periodicity and vector periodicity. the so-called "non-periodic" pacific form of wuchereria bancrofti in fact shows a well-marked and relatively constant periodicity. the amplitude of this periodicity is low, which may account for the difficulty of detecting it in small clinical samples. the periodicity is well adapted to the biting cycle of aëdes polynesiensis, though less so than that of the "semi-periodic" brugia malay ...196213933891
cross-tolerances of dieldrin-resistant flies and mosquitos to various cyclodiene insecticides.nineteen cyclodiene insecticides incorporating major and minor structural variations of the chlorinated bridged bicycloheptene structure were evaluated against susceptible and dieldrin-resistant houseflies, and against larvae and adults of susceptible culex pipiens quinquefasciatus say and dieldrin-resistant anopheles albimanus wied. determinations of ld(50) or lc(50) values demonstrated cross-resistance to all of the cyclodienes studied. this cross-resistance was very marked for most compounds, ...196213935172
a review of the role of mosquitoes in the transmission of malayan and bancroftian filariasis in japan.malayan filariasis is found in japan only on the small island of hachijo-koshima and is transmitted there by aëdes togoi and probably by culex pipiens pallens.bancroftian filariasis is widely distributed in the three main islands, and is of particularly high endemicity in the south. of the ten mosquito species proved experimentally susceptible to wuchereria bancrofti, only aëdes togoi and culex p. pallens seem to be responsible for transmission of the disease. the former species is of importance ...196213940117
dieldrin susceptibility: partial restoration in anopheles selected with a carbamate.selection of dieldrin-resistant anopheles albimanus wied. and normal culex pipiens quinquefasciatus say with m-isopropylphenyl methylcarbamate for 21 and 30 generations, respectively, resulted only in vigor tolerance to this and other aryl methylcarbamates. however, it caused substantial restoration of dieldrin- and ddt-susceptibility in anopheles by increasing the frequency of homozygous susceptible phenotypes from 10 to 83 percent.196313947242
the behavior of murray valley encephalitis virus in culex tritaeniorhynchus giles and culex pipiens quinquefasciatus say. 196314044755
biological and taxonomical studies on some colonies of pallens and fatigans forms of the house mosquito, culex pipiens s. l., from eastern and southern japan. 196314047863
[experimental transmission and conservation of the myxomatous virus by culex pipiens berbericus roubaud]. 196314081592
a red eye colour mutation in culex pipiens after x-irradiation. 196314096095
persistence of rous sarcoma virus in the mosquito culex pipiens pipiens. 196414103239
the comparative toxicity of phosphoramidothionates and phosphoramidates to susceptible and insecticide-resistant houseflies and mosquitos.studies of the comparative toxicity of a number of homologous x-chlorophenyl phosphoramidothionates and phosphoramidates and related analogues to susceptible and insecticide-resistant houseflies (musca domestica l.) and mosquitos (culex pipiens quinquefasciatus say and anopheles albimanus wied.) have shown that the 2,4,5-trichlorophenyl series is the most active and the 4-chlorophenyl series the least active. toxicity decreases in general with increasing chain length of the alkoxy and alkylamido ...196414122443
ddt-resistance and dieldrin-resistance in culex pipiens fatigans wiedemann. 196414183104
the in vitro cultivation of tissues from the mosquito, culex pipiens var. molestus. 1. cultivation of ovary tissues in vitro. 196414194462
the intake of microfilariae of wuchereria bancrofti by culex pipiens fatigans in british guiana. 196414212890
studies on autogeny in culex pipiens populations in nature. i. reproductive isolation between autogenous and anautogenous populations. 196414215828
[observations on the sensitivity of culex pipiens molestus to ddt in the rumanian people's republic]. 196414219173
problems of establishing and maintaining colonies of subspecies of culex pipiens. 196414272440
the monofactorial inheritance of resistance to dieldrin in larval and adult culex quinquefasciatus say.a susceptible and a resistant strain were isolated from an originally heterogeneous laboratory colony of culex quinquefasciatus say (= culex pipiens fatigans wiedemann) by use of discriminating concentrations of dieldrin on fourth-instar larvae. by cross-breeding, hybrids of intermediate susceptibility were obtained. by repeated cross-breeding and elimination of susceptibles the authors have shown that resistance to dieldrin is controlled by a single inheritable factor which is neither fully rec ...196414278004
[differences in the pairing of homologous chromosomes in different culex pipiens strains and in hybrids (prophase of somatic reduction)]. 196414324027
[a red-eyed mutant of culex pipiens l]. 19645856354
culex pipiens molestus as a laboratory vector of brugia pahangi. 19655857281
acriflavin-induced loss of kinetoplast deoxyribonucleic acid in crithidia fasciculata (culex pipiens strain). 19655884646
development and characterization of resistance to o-isopropoxyphenyl methylcarbamate in the mosquito culex pipiens quinquefasciatus say. 19655885961
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