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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 ...
Euthalia aconthea (baron butterfly) caterpillar found in India Caterpillar of Papilio machaon A monarch butterfly (Danaus plexippus) caterpillar feeding on an unopened seed pod of swamp milkweed. Caterpillars (/ ˈ k æ t ər p ɪ l ər / KAT-ər-pil-ər) are the larval stage of members of the order Lepidoptera (the insect order comprising ...
The caterpillar undergoes metamorphosis and emerges a butterfly. In the adult stage, within a few hours of emerging, the butterfly's wings dry and expand, allowing it to fly. During this stage, the butterfly focuses on reproduction and finding a mate. Once the female is fertilized, the cycle begins again.
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In both caterpillar and butterfly forms, monarchs are aposematic, warding off predators with a bright display of contrasting colors to warn potential predators of their undesirable taste and poisonous characteristics. One monarch researcher emphasizes that predation on eggs, larvae, or adults is natural since monarchs are part of the food chain ...
Fleshy spine-like tubercles line the caterpillars' backs, and their bodies are dark red to brown and velvety black. Some species have tubercles of contrasting colours, often red, or pale "saddle" markings. Like other members of their family, birdwing caterpillars possess a retractable organ behind their heads called an osmeterium.
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 ...
The head of a small white butterfly (Pieris rapae). Note the upward pointing labial palpi on both sides of the coiled proboscis. Comparison of moth and butterfly dorsal anatomy. Adult Essex skipper (Thymelicus lineola) Pupa of a sphingid moth Caterpillar of the subfamily Arctiinae Eggs of the buff-tip (Phalera bucephala), a notodontid moth