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Great basin wood-nymph

Great basin wood-nymph

Cercyonis sthenele

A species of Wood-nymphs, Also known as Little wood-nymph

It is dark brown with two eyespots on the forewing with the upper larger than the lower. The wingspan measures 39–44 mm (1.5–1.7 in). Its flight period is from late June to late August.

General Info About Great basin wood-nymph
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Attributes of Great basin wood-nymph
Adult Food Sources
Flower nectar, asteraceae flowers, fabaceae flowers
Larva Food Source
Grasses, poaceae species
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
The Great basin wood-nymph is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
The Great basin wood-nymph 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
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Distribution Area of Great basin wood-nymph
Ranges over much of the western United States and reaches to southern British Columbia, Canada.
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Life Cycle of Great basin wood-nymph
Egg The egg phase is the beginning of the great basin wood-nymph's life cycle. Eggs are typically laid on plant leaves and are small, oval, and vary in color. This stage is a dormant period before the larva emerges.
Larva Upon hatching, the larva of great basin wood-nymph is worm-like with a primary focus on feeding and growth. It possesses a segmented body with chewing mouthparts and will molt multiple times, increasing in size with each stage.
Pupal The great basin wood-nymph enters the pupal stage encased within a chrysalis. This is a transition phase where the insect undergoes significant transformation, with tissues and organs rearranging to form the adult structures.
Adult Emerging from the pupa, the adult great basin wood-nymph'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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Predators of Great basin wood-nymph Larvae
Birds, rodents, insects such as ants and wasps
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Scientific Classification of Great basin wood-nymph
Tips for Finding Great basin wood-nymph
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Youth Habitat of Great basin wood-nymph
Grasslands and Prairies
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Adult Habitat of Great basin wood-nymph
Grasslands and Prairies, Forests and Woodlands
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Habitat Preferences of Great basin wood-nymph Through Different Life Stages
To observe the larvae of great basin wood-nymph, you should look for grassy areas, meadows, or open woodlands where their host plants, grasses, are abundant. As for the eggs, check the underside of grass leaves as females lay eggs singly here. Pupae might be a bit trickier to find; they are often concealed in plant litter or soil near the host plants. Adults prefer open sunny areas where they can be seen fluttering close to the ground, especially where there are plenty of nectar sources like wildflowers. For effective searching, gentle sweeping through grass or examining the base of plants for pupae, while checking for adult great basin wood-nymph requires a slow walk through suitable habitats on sunny days.
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How and Where Can You Find Great basin wood-nymph at Different Life Stages
Egg Great basin wood-nymph eggs are typically laid on the underside of host plant leaves. To find them, carefully inspect these areas, particularly on plants known to be favored by great basin wood-nymph.
Larva Great basin wood-nymph larvae, also known as caterpillars, can be found by looking on or near their host plants. They may be seen feeding on leaves, so check for signs of chewing or frass (caterpillar droppings).
Pupal To find great basin wood-nymph chrysalides, search in sheltered places near the larval food sources, as great basin wood-nymph often pupate in concealed areas like underneath leaves or in crevices on a host plant.
Adult Great basin wood-nymph can be observed feeding on nectar from flowers, basking in the sun, or seeking mates. To find adults, visit meadows, fields, or gardens with abundant flowering plants during calm, sunny days.
Are Great basin wood-nymph harmful?
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Are Great basin wood-nymph 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.
Beneficial Effects of Great basin wood-nymph
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Pollinator
Pollinator
Attract Plant Feature
Color, Smell
Great basin wood-nymph is attracted to flowers through visual and olfactory cues, as they are drawn to colorful blooms and their fragrances. While feeding on pollen, which is a food resource for them, they inadvertently transfer pollen from one flower to another, aiding in the cross-pollination of various plants.
Common Questions People Also Ask
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