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Blue Nawab

Polyura schreiber

A species of Nawab butterflies

Polyura schreiber, the blue nawab, is a butterfly species found in tropical Asia. It belongs to the Charaxinae (rajahs and nawabs) in the brush-footed butterfly family (Nymphalidae). It occurs from south India and Assam through Myanmar, Tenasserim, and Southeast Asia to southern China and to Java, Indonesia.

General Info About Blue Nawab
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Attributes of Blue Nawab
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Siphoning mouthparts
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Species Status of Blue Nawab
Widespread
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Distribution Area of Blue Nawab
Asia
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Life Cycle of Blue Nawab
Egg At this stage, the eggs of blue Nawab are often laid on plants and are miniature in size. Their color can blend with the surroundings to prevent predation. Within these, the developing larvae feed on the egg's nutrients.
Larva As larvae, blue Nawab are worm-like, with a voracious appetite for leaves, growing multiple times their initial size. During this stage, they molt several times, revealing different patterns and colors with each instar.
Pupal The pupal stage of blue Nawab is a time of transformation inside a hardened chrysalis. Their shape is unique and can have varied colors for camouflage. They undergo reorganization into the adult form.
Adult Emerging from the pupa, the adult blue Nawab displays vibrant colors and patterns on its wings. The winged body is well-differentiated with a hardened exoskeleton. The adult focuses on mating and laying eggs.
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Predators of Blue Nawab Larvae
Hymenoptera (wasps, ants), araneae (spiders), mantodea (praying mantises), aves (birds)
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Scientific Classification of Blue Nawab
Tips for Finding Blue Nawab
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Youth Habitat of Blue Nawab
Forests and Woodlands, Tropical Rainforests
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Adult Habitat of Blue Nawab
Forests and Woodlands, Tropical Rainforests
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How Can You Attract Blue Nawab
Not applicable as blue Nawab is not typically attracted by bait but rather found in its natural habitat during various stages of its lifecycle.
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Habitat Preferences of Blue Nawab Through Different Life Stages
The eggs of blue Nawab are typically found on the underside of host plant leaves, while the caterpillars, which voraciously feed, are commonly observed on the leaves of the same plants, often in more concealed parts. The pupae tend to be hidden nearby in sheltered, quiet areas such as under branches or in leaf litter. To find blue Nawab, one might look along forest edges or open woodland where their host plants grow for caterpillars and eggs, and inspect quieter, less disturbed areas with some cover for pupae. Adults, which are more mobile, can be spotted flying in these environments particularly near nectar sources for feeding.
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How and Where Can You Find Blue Nawab at Different Life Stages
Egg Blue Nawab eggs are usually laid on the host plants. Search the leaves for small, rounded or ovate objects that are typically attached to the underside of leaves or stems.
Larva Blue Nawab caterpillars can be found on or near their specific host plants. Look for signs of feeding, such as chewed leaves, and inspect the plant thoroughly.
Pupal Blue Nawab chrysalides are often well-camouflaged and attached to branches or leaves. They can be found by carefully scanning the host plant, checking the underside of leaves, stems or even in the leaf litter.
Adult Blue Nawab butterflies are most easily observed in areas with abundant flowering plants, as they are drawn to nectar. Search in open, sunny areas, gardens, or fields where these plants grow.
Are Blue Nawab harmful?
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Are Blue Nawab 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 Blue Nawab
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Hurt Plant

Larvae of blue Nawab feed on leaves, causing damage ranging from mild to severe. Infested plants display defoliation, compromised photosynthesis, and reduced growth, ultimately affecting their overall health and yield.

More Effects of Blue Nawab

Beneficial Effects of Blue Nawab
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Pollinator
Pollinator
Pollination Behavior Reason
Eat Pollen Or Nectar
Blue Nawab is attracted to flowers by their vivid colors and distinctive shapes. This pollinator consumes pollen for nourishment, while moving from bloom to bloom. During these visits, blue Nawab inadvertently picks up pollen on its body, which is later transferred to other flowers, assisting in plant reproduction.
Common Questions People Also Ask
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