development of filarial parasites in mosquitos in north-east tanzania. | natural populations of 6 species of mosquito-anopheles tenebrosus, taeniorynchus (mansonioides) africanus, taeniorynchus (mansonioides) uniformis, anopheles coustani, anopheles ziemanni, and anopheles pharoensis-were examined for filarial parasites. infective stages of dirofilaria immitis were found in the first 3 of these species, which are therefore considered vectors. laboratory studies to see whether or not any of the 6 could potentially transmit wucheria bancrofti showed only a. tenebrosus ... | 1973 | 4151063 |
preliminary field trials with culicinomyces clavosporus against some egyptian mosquitoes in selected habitats. | culicinomyces clavosporus was isolated from diseased larvae of culex pipiens collected from brackish water habitat. pure cultures of the fungus were grown on nutrient agar media. in the laboratory, the egyptian isolate of the fungus was bioassayed against first instar larvae of aedes caspius, cx. antennatus and cx. pipiens. the estimated lc50's for ae. caspius, cx. antennatus and cx. pipiens were 4.4 x 10(2), 7.6 x 10(2) and 11.8 x 10(2) conidia/ml, respectively. field studies were undertaken in ... | 2003 | 12739818 |
entomological characteristics of malaria transmission in manhiça, a rural area in southern mozambique. | from october 1997 to september 1998, an entomological survey was carried out in manhiça, mozambique, to describe the anopheline population and intensity of malaria transmission. ten different huts were randomly selected for entomological surveillance throughout the year. cdc light trap collections were conducted during three nights each month. additional knockdown spraying catches were carried out in the morning, after the last catch. a total of 17,245 culicinae and 1,251 anophelinae were collec ... | 2005 | 15799528 |
Mosquitoes (Diptera: Culicidae) in relation to the risk of disease transmission in El Ismailia Governorate, Egypt. | Mosquito were surveyed (Nov. 2009 - March 2010) in El Ismailia Governorate. Nine species were reported: Culex pipiens, Cx. perexiguus, Cx. antennatus, Anopheles tenebrosus, An. pharoensis, An. multicolor, Ochlerotatus detritus, Oc. caspius and Culiseta longiareolata. Culex pipiens was the predominant species (ca. 87% larvae and 57% adults). For the 3 common species, Cx. pipiens, Cx. perexiguus, and Cx. antennatus the following were examined: (1) the type and characteristics (temperature and pH) ... | 2011 | 21980773 |
effects of salinity on the larvae of some afrotropical anopheline mosquitoes. | laboratory experiments showed that the larvae of some freshwater-breeding afrotropical anopheline species exhibit various degrees of tolerance to 25% sea-water. at 24 degrees c, survival rates from egg to fourth instar larva were significantly less in salt-water than in freshwater for four species: 39.5% versus 55.4% for anopheles tenebrosus dönitz, 31.9% versus 86.2% for an. mousinhoi de meillon & pereira, 3.5% versus 67.9% for an. pharoensis theobald and 3.9% versus 41.9% for an. quadriannulat ... | 1988 | 2980197 |