序在日本记录的蚜虫,现在已约达七百种,其中约半数寄生在树木上。蚜虫为繁殖力强的昆虫,一般于晚秋出现雄虫及产卵性雌虫并产卵。由该卵孵化出来的蚜虫被称作干母,如发育为成蚜,均为孤雌生殖(单性生殖),通过卵胎生可产若蚜30～70头,多的可达100头。新生的若蚜发育为成蚜仍营孤雌生殖,重复着这样的单性世代,使得在春季 Aphids recorded in Japan are now about 700 species, of which about half are parasitic on trees. Aphids are fertile insects, usually male and oviposition females in the late autumn and lay eggs. Aphids hatched from the egg are called dry mother, such as development into aphids, are parthenogenesis (parthenogenesis), via oviparous can produce as young as 30 to 70, more than 100 up. Emergence of aphids to develop into aphids still camp Parthenogenesis, repeated such a single generation, making the spring