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Juno longwing

Juno longwing

Dione juno

A species of Dione, Also known as Juno heliconian, Silver-spot butterfly

Dione juno, the Juno silverspot, juno longwing, or Juno heliconian, is a species of butterfly of the subfamily Heliconiinae in the family Nymphalidae found from southern United States to South America.

General Info About Juno longwing
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Attributes of Juno longwing
Habitat
open forest; sunny area; riverbank; rocky slope; roadside
Adult Food Sources
Nectar from plants such as lantana camara, stachytarpheta, buddleja, asclepias, trachelium caeruleum
Larva Food Source
Passiflora species leaves, specifically passiflora edulis, passiflora ligularis, passiflora vitifolia, passiflora suberosa, passiflora alata
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
The Juno longwing can induce toxic reactions varying in severity. Nevertheless, these toxins primarily target their prey and predators and are usually not fatal to humans.
Non-poisonous
Not reported
Borer
Not reported
Pollinator
The Juno longwing is often found near the corolla, where its fluffy hairs easily pick up pollen, assisting in the pollination of the plant.
Pest-Eating Predatory
Not reported
Phytophagous
The Juno longwing feeds on plants, usually without causing significant harm. However, it's important to take the situation seriously if their numbers begin to increase significantly.
Predatory
Not reported
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Species Status of Juno longwing
Not endangered
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Distribution Area of Juno longwing
America
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Predators of Adult Juno longwing
Birds, mammals (like bats), arthropods (like spiders), reptiles (like lizards)
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Interesting Facts About Juno longwing
The juno longwing can taste with its feet, allowing it to determine which plants are suitable for laying eggs.
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Scientific Classification of Juno longwing
Tips for Finding Juno longwing
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Youth Habitat of Juno longwing
Tropical Rainforests
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Habitat Preferences of Juno longwing Through Different Life Stages
To observe the lifecycle stages of juno longwing, start in tropical forests, where the eggs are laid on passionflower vines. Caterpillars hatch and remain on the host plant, camouflaged among leaves. Chrysalides often form on the underside of leaves in the same habitat. Adults typically emerge in those forests too but are more widespread, visiting flowering gardens and moist areas for nectar. When searching, use visual identification and be patient, as the immature stages blend with foliage, while adults may frequently be on the wing, necessitating careful attention to flower visitors.
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When is the Best Time to Observe Juno longwing
The most suitable time to find adult juno longwing would be on sunny days, especially in the middle of the day when temperatures are higher and the butterflies are most active.
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What is the Best Weather to Observe Juno longwing
Adult juno longwing are more likely to be active during warm, sunny weather, as opposed to cold or rainy conditions, which may cause them to seek shelter or become less active.
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How and Where Can You Find Juno longwing at Different Life Stages
Egg Juno longwing eggs are often laid in clusters on the underside of host plant leaves. To find these, closely inspect the designated host plants for small clusters or rows of tiny, round or oblong eggs.
Larva Juno longwing caterpillars will be found on or near their host plants. Look for signs of feeding, like chewed leaves, and carefully check the plant from all angles to find camouflaged caterpillars.
Pupal Juno longwing chrysalides can be harder to spot as they often blend with their surroundings. They are usually hidden in dense foliage or sometimes on the underside of leaves or branches of host or nearby plants.
Adult Adult juno longwing can be found near flowering plants, meadows, or other areas with abundant nectar sources. Sunny, sheltered spots that are protected from the wind are often preferred by foraging adults.
Are Juno longwing harmful?
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Are Juno longwing 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 Juno longwing
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Hurt Plant

Larvae of juno longwing pose a threat to a range of plants, chewing on leaves. Depending on the infestation level, plant health can vary from mildly impacted to severely defoliated, compromising the plant's ability to photosynthesize and ultimately affecting growth.

More Effects of Juno longwing

Beneficial Effects of Juno longwing
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Pollinator
Pollinator
Prefer Plant Type
Passifloraceae
Attract Plant Feature
Color, Smell
Juno longwing visits flowers primarily to feed on nectar. By doing so, this pollinator inadvertently collects pollen on its body, which is then transferred to other flowers, aiding in their pollination. Their attraction to flowers is influenced by visual and olfactory cues, with a particular preference for certain Passifloraceae species.
Common Questions People Also Ask
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