I General Biology of Mites 1.Reproduction and Development 串 Sexual reproduction Gamogenesis (most of species) Parthenogenesis (a few) Egg larval mite first nymph mite second nymph mite adult mite 是 Some male mites have no second nymph mite. Ⅰ. General Biology of Mites . General Biology of Mites 1. Reproduction and Development 1. Reproduction and Development Sexual reproduction = Gamogenesis (most of Sexual reproduction = Gamogenesis (most of species) species) Parthenogenesis (a few) Parthenogenesis (a few) Egg - larval mite larval mite - first nymph mite first nymph mite – second nymph mite nymph mite – adult mite adult mite Some male mites have no second nymph mite. Some male mites have no second nymph mite