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Yellow Coster

Yellow Coster

Acraea issoria

A species of Acraea

Adorned with a striking orange and black pattern on its wings, yellow Coster is recognized for its multiple broods per year, with the number greatly influenced by geographical location and climatic conditions. The caterpillars exhibit a distinct dietary preference, feeding exclusively on host plants that confer a chemical protection against predators. This specialized diet provides not only sustenance but also deters most natural enemies, giving them a unique survival edge from a tender life stage.

General Info About Yellow Coster
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Attributes of Yellow Coster
Colors
Black
Yellow
Habitat
Evergreen forest; moist deciduous forest
Adult Food Sources
Asteraceae flowers, fabaceae flowers, lamiaceae flowers, apocynaceae flowers, acanthaceae flowers
Larva Food Source
Passiflora species, aristolochia species, vitis species, pararistolochia species, tinospora species
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Pollinator
The Yellow Coster is often found near the corolla, where its fluffy hairs easily pick up pollen, assisting in the pollination of the plant.
Mouthparts Type
Siphoning mouthparts
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Species Status of Yellow Coster
Uncommon
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Distribution Area of Yellow Coster
Bhutan
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Life Cycle of Yellow Coster
Egg Immediately after being laid, the egg of the yellow Coster is small and varies in color. During this phase, the embryo develops within the protective outer shell, which also serves to secure the egg to a leaf or stem.
Larva Upon hatching, the yellow Coster larva, commonly referred to as a caterpillar, emerges as a feeding machine, with its main function being to eat and grow. It periodically molts as it outgrows its skin.
Pupal The caterpillar forms a chrysalis during the pupal stage, where it undergoes a remarkable transformation. The yellow Coster reorganizes its structure, forming wings and adult body parts while encased.
Adult Emerging from the pupa, the adult yellow Coster’s development is marked by the presence of wings and functional reproductive organs. The body is fully formed and hardened, and the adult is mobile, focusing on reproduction.
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Interesting Facts About Yellow Coster
Yellow Coster has specialized scent scales that release pheromones during courtship, which are crucial for attracting mates.
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Scientific Classification of Yellow Coster
Tips for Finding Yellow Coster
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Youth Habitat of Yellow Coster
Forests and Woodlands, Grasslands and Prairies, Savannas
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Adult Habitat of Yellow Coster
Forests and Woodlands, Grasslands and Prairies, Savannas, Agricultural and Cultivated Areas, Tropical Rainforests
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How Can You Attract Yellow Coster
To attract yellow Coster, one could use rotting fruits or fermented baits, which mimic the natural feeding preferences of these creatures in the wild.
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What is the Best Weather to Observe Yellow Coster
Yellow Coster is typically more active in warm, sunny weather, as it provides the thermal energy necessary for their flight. Overly windy, rainy, or cold days may reduce their activity levels.
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How and Where Can You Find Yellow Coster at Different Life Stages
Egg Yellow Coster eggs are often laid on the underside of host plant leaves. To find them, closely examine potential host plants, paying special attention to the undersides of the leaves for small, clustered eggs.
Larva Yellow Coster larvae, or caterpillars, can be found on or near their host plants. Search for them by looking for signs of feeding, such as chewed leaves, and check both sides of the leaves.
Pupal To find yellow Coster pupae, look for them attached to structures near the host plant, such as stems or leaves, or sometimes on nearby walls or fences. They often utilize camouflage, so careful observation is necessary.
Adult Yellow Coster adults can be found flying in areas with flowering plants. To locate them, visit gardens, meadows, or fields that contain their preferred nectar sources during warm and sunny parts of the day.
Are Yellow Coster harmful?
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Are Yellow Coster harmful to humans?

Some larvae of tortoiseshell butterflies feed on milkweed, which is a poisonous plant containing cardiac glycosides, so the larvae are poisonous. Although poisonous, these butterflies will not directly affect humans if not swallowed. Touching the larvae of certain tortoiseshell butterflies may cause a rash.
Harmful Effects of Yellow Coster
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Hurt Plant

Larvae of yellow Coster feed on plant leaves, potentially leading from mild to severe defoliation. Affected plants may exhibit reduced photosynthesis, stunted growth, and compromised fruit production.

More Effects of Yellow Coster

Beneficial Effects of Yellow Coster
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Explore how insects help as pollinators, pest predators, and biocontrol agents. From seed dispersal to decomposition, they play vital roles in our ecosystem.
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Pollinator
Pollinator
Attract Plant Feature
Color, Shape
Pollination Behavior Reason
Eat Pollen Or Nectar
Yellow Coster, with their vividly patterned wings, are not only a spectacle for the eyes but also pivotal actors in the pollination theater. They exhibit a strong affinity for the bright blooms of the Asteraceae family. Primarily drawn by the brilliant colors and alluring shapes of the flowers, yellow Coster delicately unroll their proboscis to sip on nectar while inadvertently dusting themselves with pollen. They accomplish pollination as they flit from flower to flower, driven by their quest for nourishment.
Common Questions People Also Ask
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