在22、25、28、31、34℃下研究了红火蚁(Solenopsis invicta Buren)工蚁卵、幼虫和蛹的发育历期、发育起点温度和有效积温。结果表明,红火蚁的发育历期受温度影响显著,随着温度的升高,各虫态发育历期缩短;幼虫的发育历期最长,其次为蛹,卵的历期最短。红火蚁工蚁卵、幼虫和蛹的发育起点温度分别为19.2℃、20.1℃和18.4℃,有效积温分别为66.7日·度、119.0日.度和99.1日·度。 The developmental duration, developmental onset temperature and effective accumulated temperature of eggs, larvae and pupae of Solenopsis invicta Buren were studied at 22,25,28,31,34 ℃. The results showed that the developmental duration of the red imported fire ant was significantly affected by temperature. With the increase of temperature, the developmental duration of each insect was shortened. The larvae had the longest development period, followed by the pupae and the shortest period of eggs. The onset temperatures of the eggs, larvae and pupae of the red imported fire ant workers were 19.2 ℃, 20.1 ℃ and 18.4 ℃, respectively. The effective accumulated temperatures were 66.7 days, 119.0 days and 99.1 days, respectively.