Medical arthropoda Very small (1.3-3.5 mm) Hairy body Wings held in a “V” above the body Weak flying insects Sand flies ( 白蛉)Act as vector of Leishmaniasis Life cycle: 6-8 weeks Seasonal existence: Jun-Sept Activity area and distribution Sensitive to insecticidev 3mmandbrownv Laterallycompressedandwinglessv With3pairsofpowerfullegsadaptedforjumping,adultscanjumpabout70cmvertically,30cmhorizontallyFleas ( 蚤)Life cycle and habits Complete metamorphosis Both sexes can take a blood meal Excreting wh
