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Phoebis sennae, the cloudless sulphur, is a mid-sized butterfly in the family Pieridae found in the Americas. There are several similar species such as the clouded sulphur ( Colias philodice ), the yellow angled-sulphur ( Anteos maerula ), which has angled wings, the statira sulphur ( Aphrissa statira ), and other sulphurs , which are much smaller.
Caterpillars are also affected by a range of bacterial, viral and fungal diseases, and only a small percentage of the butterfly eggs laid ever reach adulthood. [79] The bacterium Bacillus thuringiensis has been used in sprays to reduce damage to crops by the caterpillars of the large white butterfly, and the entomopathogenic fungus Beauveria ...
Nymphalis antiopa, known as the mourning cloak in North America and the Camberwell beauty in Britain, is a large butterfly native to Eurasia and North America. The immature form of this species is sometimes known as the spiny elm caterpillar. [2] Other older names for this species include grand surprise and white petticoat. A powerful flier ...
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The adult butterfly emerges (ecloses) from this and expands its wings by pumping haemolymph into the wing veins. [13] Although this sudden and rapid change from pupa to imago is often called metamorphosis, metamorphosis is really the whole series of changes that an insect undergoes from egg to adult.
Once the caterpillar transforms into a butterfly inside the nest, its soft body is vulnerable to the ants who can swarm and dismember intruders. However, as the butterfly quickly moves toward an exit, it is protected by white scales from its new wings; the scales are slippery enough to prevent most ants from getting a foothold and these scales ...
The earliest known butterfly fossils are from the mid Eocene epoch, between 40-50 million years ago. [ 1 ] [ dubious – discuss ] Their development is closely linked to the evolution of flowering plants, since both adult butterflies and caterpillars feed on flowering plants.
A dragonfly in its final moult, undergoing metamorphosis, it begins transforming from its nymph form to an adult. Metamorphosis is a biological process by which an animal physically develops including birth transformation or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation. [1]
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