THE CAUSES OF COLOR AND COLOR-CHANGE IN CATERPILLARS OF THE POPLAR AND EYED HAWKMOTHS (LAOTHOE-POPULI AND SMERINTHUS-OCELLATA)
THE CAUSES OF COLOR AND COLOR-CHANGE IN CATERPILLARS OF THE POPLAR AND EYED HAWKMOTHS (LAOTHOE-POPULI AND SMERINTHUS-OCELLATA)
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DOI：
10.1111/j.1095-8312.1989.tb01904.x
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发表时间：
1989-07-01
影响因子：
1.9
通讯作者：
EDMUNDS, M
中科院分区：
文献类型：
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作者：
GRAYSON, J;EDMUNDS, M
在不同条件下饲养杨树毛虫和眼鹰蛾幼虫，以确定幼虫颜色变化的原因。杨树天蛾毛虫通常栖息在树叶的背面。暗绿色和红色斑点毛虫是遗传决定的多态。然而，不是暗绿色的毛虫，在取食白杨时会变成白色，在取食脆弱柳时会变成黄绿色。实验表明，正是树叶的反射特性决定了毛虫发育成什么颜色：如果幼虫看到白色，它就会变成白色，但如果它看到绿色、灰色或黑色，它就会变成黄绿色。在我们照度较低的饲养条件下，幼眼天蛾幼虫总是发育成灰绿色的终龄毛虫，但在白色细布袖子里用野生植物饲养时，它们会变成白绿色。在这个物种中，最后一龄幼虫的颜色似乎也是由幼虫感知到的底物的反射率决定的。
Caterpillars of the poplar and eyed hawkmoths (Laothe populi and Smerinthus ocellata, respectively) were reared under different conditions in order to determine why final instar caterpillars vary in colour. Poplar hawkmoth caterpillars normally rest on the undersides of leaves. Dull green and red-spotted caterpillars are genetically determined polymorphisms. Caterpillars that are not dull green, however, can become white when fed on Populus alba or yellow-green when fed on Salix fragilis. Experiments showed that it is the reflective qualities of the leaves that determines which colour the caterpillar develops: if the young larva sees white then it becomes white, but if it sees green, grey or black then it becomes yellow-green. Young eyed hawkmoth larvae always developed into grey-green final instar caterpillars under our rather poorly-illuminated rearing conditions, but when reared on wild plants in white muslin sleeves they became whitish-green. In this species also it appears that colour of the final instar is determined by the reflectance of the substrate perceived by the young caterpillar.