Poulton discusses the metallic appearance of insect pupae, which he says is the reason for the name "chrysalis".
Insect pupae are generally considered inactive and quiescent, but some of them generate air-borne sounds and/or substrate-borne vibrations.
Among holometabolous insects the pupa develops in the presence of a very small amount of juvenile hormone.
To the Editor: Woodpeckers normally drill where there are insect larvae or pupae (like carpenter bees) in the wood.
It was found that the survived treated larvaes with commercial silica transferred to adult insects without any pupa malformation closely to the control set (Fig. 5b).
The English zoologist Edward Bagnall Poulton, author of The Colours of Animals (1890) discovered the countershading of various insects, including the pupa or chrysalis of the purple emperor butterfly, Apatura iris, the caterpillar larvae of the brimstone moth, Opisthograptis luteolata and of the peppered moth, Biston betularia.
These arthropods were identified to order or family (in the case of Formicidae only), with the exception of the immature insects which were grouped as "insect larvae and pupae".
While fire negatively affected the abundance of Acari, Araneae, adult Coleoptera, and insect larvae and pupae, it had no significant effect on Colembola, Formicidae, and Thysanoptera (Fig. 4, Table 2).
That for many taxa (Acari, Araneae, Coleoptera, Thysanoptera, and insect larvae and pupae) the differences in abundance between burned and unburned sites were maintained even when controlling for litter availability and quality suggests that these differences were driven by a direct effect of fire on arthropod populations rather than an indirect effect on their resources (litter).
In the baculovirus expression system, not only cultured cells but also insect larvae and pupae can be used for protein production.
