Cyclops are the most familiar copepod of class-Crustacea. These crustaceans are found in fresh water ponds, lakes and in slight brakish water of the estuary. They are regarded as zoo-planktons. Cyclops acts as intermediate host of guinea-worm, Dracunculus medinensis. The coiled larvae of Dracunculus are released in water by rupturing the blister of human beings. In case of guinea- worm [...]
The following points highlight the six major diseases caused by mosquitoes. The diseases are: 1. Malaria 2. Filariasis or Elephantiasis 3. Encephalities 4. Dermatobia 5. Dengue 6. Dengue Haemorrhagic Fever. Disease # 1. Malaria: Malarial fever is a serious disease of man which is created by protozoan endoparasite known as Plasmodium. The malarial disease in man is caused by the [...]
Sand flies are of great importance as the transmitters of various kinds of leishmaniasis, of a filtrable virus disease called three-day fever or more commonly sand-fly or papatasi fever and of Oroya fever. These are blood sucking flies and they belong to the genus Phlebotomus. These are small, moth like flies, rarely over 5 mm long. Their bodies and wings [...]