红锯蛱蝶生物学特性研究

描述了红锯蛱蝶4个虫态的形态特征；通过室内饲养和野外观察，研究了该蝶的生物学特性：在西双版纳该蝶1年7代，以第7代3龄幼虫越冬，越冬时间从每年的12月起至次年2月中旬止．其余各代历期35～40d，室内21～28℃下，卵期8～11d，幼虫期12～16d，蛹期8～9d，雌虫寿命12～18d，雄虫寿命6～10d．幼虫共4龄，l～2龄幼虫取食嫩叶，喜群集；3～4龄幼虫取食嫩叶、嫩枝和老叶；4龄幼虫还取食茎的绿色表皮，其食量占整个幼虫期的78．98％．幼虫喜食三开瓢，成虫喜访马缨丹、仙丹花、九重葛等有花植物．在人工饲养条件下，成虫的交配率和产卵量与网室的大小和蝴蝶的密度有关．

A Study on the Biological Habits of Cethosia bibles

Cethosia bibles is a butterfly with high aesthetic value. The morphological characteristics of its egg, larva, pupa and adult were described in this paper, and the biological habits of the butterfly were also studied based on breeding indoors and observation outdoors. Annually, the species has 7 generations in Xishuangbanna, and it over-winters by the 7th generation of larva in the 3rd instar stage. The period of over-wintering begins in Dec. and ends in the following Feb.. The period of each generation lasts for 35 to 40 days, the periods of the egg, larva and pupa lasts for 8 to 11 days, 12 to16 days and 8 to 9 days respectively. The lifespan of female adult is around 12 to 18 days and that of male adult is 6 to 10 days. The larva stage has 4 instars. The 1st and the 2nd instars feed on tender leaves gregariously. The 3rd and the 4th instars live on tender leaves, young shoots or old leaves. The 4th instar also feeds on the green cuticle of the stem and its feeding quantity occupies 78.98% of the total during the larva period. The larvae like eating Adenia parviflora, and the adults like visiting many flowerers such as Lantana camara, Ixora chinensis, Bougainvillea glabra , and so on. The mating ratio and the number of oviposition of the adults under human feeding condition are correlative with both the size of the net room and the density of the butterflies.