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Juvenal's duskywing

Juvenal's duskywing

Erynnis juvenalis

A species of Duskywings

Erynnis juvenalis is a butterfly from the family of Erynnis juvenalis (Hesperiidae). The scientific name of the species was first validly published in 1793 by Fabricius.

General Info About Juvenal's duskywing
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Attributes of Juvenal's duskywing
Colors
Brown
Black
Habitat
oak wood or scrub and associated edge or field
Adult Food Sources
Nectar from flowers such as butterfly bush (buddleia spp.), milkweeds (asclepias spp.), red clover (trifolium pratense), new england aster (symphyotrichum novae-angliae), and joe-pye weed (eutrochium spp.)
Venomous
Not reported
Non-poisonous
The Juvenal's duskywing is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Borer
Not reported
Pollinator
The Juvenal's duskywing 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 Juvenal's duskywing 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
Biting animal or pet
Not reported
Mouthparts Type
Siphoning mouthparts
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Species Status of Juvenal's duskywing
It is found in central and North America.
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Adult Size of Juvenal's duskywing
3.5 - 5 cm
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Predators of Juvenal's duskywing Larvae
Birds, rodents, reptiles, arachnids, larger insects
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Predators of Adult Juvenal's duskywing
Birds, spiders, mammals, reptiles, amphibians
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Interesting Facts About Juvenal's duskywing
Despite being a skilled flyer, juvenal's duskywing can camouflage flawlessly into the bark of trees, hiding in plain sight from predators and researchers alike.
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Scientific Classification of Juvenal's duskywing
Tips for Finding Juvenal's duskywing
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Youth Habitat of Juvenal's duskywing
Forests and Woodlands, Grasslands and Prairies
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Habitat Preferences of Juvenal's duskywing Through Different Life Stages
Eggs of juvenal's duskywing are laid singly on the underside of host plant leaves, typically found in sunny, open habitats. Caterpillars primarily reside within folded or rolled leaves of their host plants, favoring woodlands and adjacent areas. Pupae are generally well-concealed within leaf shelters, also in semi-wooded or grassy locales. When searching for juvenal's duskywing, check the sunny edges of forests and open areas for eggs on host foliage, and inspect leaf rolls or folds in woodlands for caterpillars. To find pupae, examine sheltered spots within leaf debris close to the ground, especially in areas that caterpillars frequent.
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When is the Best Time to Observe Juvenal's duskywing
The adult juvenal's duskywing is best found on warm, sunny days when butterflies are most active, typically in the late morning or early afternoon. Caterpillars can be found throughout the day on host plants.
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What is the Best Weather to Observe Juvenal's duskywing
Weather conditions should be dry and preferably sunny, as juvenal's duskywing and other species of Lepidoptera are less active in rainy or overly windy conditions.
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How and Where Can You Find Juvenal's duskywing at Different Life Stages
Egg Eggs of juvenal's duskywing are typically laid on the underside of leaves of the host plants. Search by carefully examining the underside of leaves, especially those of plants that are known to be a food source for the caterpillars.
Larva Caterpillars of juvenal's duskywing can often be found on or near host plants they consume. Look for chewed leaves or frass (caterpillar droppings) underneath the plant as indicators of their presence.
Pupal Pupae of juvenal's duskywing might be found attached to host plants, nearby structures, or sometimes in leaf litter. Search near the caterpillar's food sources, and check walls, fences, and dead branches.
Adult Juvenal's duskywing adults are attracted to flowers and open, sunny areas within their habitat. Spotting these butterflies may be easiest by identifying and visiting wildflowers or gardens they are known to frequent.
Are Juvenal's duskywing harmful?
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Harmful Effects of Juvenal's duskywing
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Hurt Plant

Juvenal's duskywing larvae damage oak and related tree species by chewing on the leaves. This feeding activity leads to the creation of holes in the foliage and may cause defoliation. Severe infestation can stress the trees, potentially reducing their growth and weakening their overall health.

More Effects of Juvenal's duskywing

Beneficial Effects of Juvenal's duskywing
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Pollinator
Pollinator
Attract Plant Feature
Color, Shape
Juvenal's duskywing is a known pollinator which visits several blossoms for nectar. During these visits, pollen grains stick to their bodies and are subsequently transferred to other flowers, aiding in cross-pollination. The vibrant colors and distinct shapes of flowers attract juvenal's duskywing, which collects pollen primarily to feed on it.
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