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Horace's duskywing

Horace's duskywing

Erynnis horatius

A species of Duskywings

Fringes are brown. Upperside of male forewing is dark brown with little contrast and no white overscaling. Upperside of female forewing is light brown with a contrasting pattern and large transparent spots. Underside of hindwing is usually without two spots below the apex. The male has a costal fold containing yellow scent scales; the female has a patch of scent scales on the 7th abdominal segment. The wingspan is 3.5 - 5 cm.

General Info About Horace's duskywing
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Attributes of Horace's duskywing
Colors
Brown
Black
White
Habitat
open woodland and edge; clearing; fencerow; wooded swamp; power-line right-of-way; open field; roadside
Adult Food Sources
Nectar from flowers of the asteraceae family, nectar from flowers of the fabaceae family, nectar from flowers of the lamiaceae family, nectar from various flowering species
Larva Food Source
Leaves of leguminosae family plants, leaves of fabaceae family plants
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
The Horace'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 Horace's duskywing 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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Life Cycle of Horace's duskywing
Egg After being laid by the adult horace's duskywing, the egg is small and spherical. As incubation progresses, a color change often indicates the embryo's growth and approaching hatching time.
Larva Upon hatching, the larva is worm-like with a primary focus on feeding to grow. It periodically molts its exoskeleton to accommodate its increasing size.
Pupal The larva transitions into a pupa, forming a protective casing. Within this structure, the horace's duskywing undergoes a significant transformation, reorganizing its body structures.
Adult Emerging from the pupa, the adult horace's duskywing'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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Adult Size of Horace's duskywing
3.5 - 5 cm
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Predators of Horace's duskywing Larvae
Birds, rodents, spiders, parasitic wasps, parasitic flies, predatory beetles
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Predators of Adult Horace's duskywing
Birds, spiders, insectivorous mammals, reptiles, amphibians
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Interesting Facts About Horace's duskywing
Horace's duskywing has the unique ability to produce a clicking sound, a behavior rarely found in its family, used as a defense mechanism against predators.
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Scientific Classification of Horace's duskywing
Tips for Finding Horace's duskywing
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How Can You Attract Horace's duskywing
Adult horace's duskywing may be attracted to nectar-rich flowers or bait traps containing fermenting fruit or sweet substances.
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Habitat Preferences of Horace's duskywing Through Different Life Stages
The eggs of horace's duskywing are typically deposited on the undersides of host plant leaves. As caterpillars, they feed on these plants and can be found hidden within rolled leaves or leaf shelters they create for protection. When they become pupae, they usually pupate inside these shelters or on nearby vegetation. Adults, the final growth stage, are often found in open, sunny environments that provide ample feeding opportunities on nectar plants. For those seeking to observe the different life stages, searching for the host plants is crucial, beginning with examining the undersides of leaves for eggs, scouting for rolled leaves indicating caterpillar presence, checking for pupal cases within leaf shelters, and finally, looking for adults in sunny areas with nectar-rich flowers.
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When is the Best Time to Observe Horace's duskywing
The best time to find adult horace's duskywing is during their active months, usually in the warm seasons when temperatures are conducive to flight and feeding. For larvae and pupae, time of year may vary based on their life cycle stages and regional climate.
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What is the Best Weather to Observe Horace's duskywing
Adult horace's duskywing are likely to be most active on sunny days with little to no wind, which are ideal conditions for them to fly and feed on nectar. Overcast but warm conditions may also be suitable for observing adults at rest.
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How and Where Can You Find Horace's duskywing at Different Life Stages
Egg Horace's duskywing eggs are typically laid on the host plants. Look for tiny, round or oval eggs on the undersides of leaves, especially on or near flowers where adults horace's duskywing may deposit them.
Larva Horace's duskywing larvae, also known as caterpillars, can be found by carefully inspecting the host plants they feed on. Search for signs of feeding damage, like chewed leaves, and look for the caterpillars along stems and leaf axils during the day.
Pupal Horace's duskywing pupae may be attached to host plants or on nearby structures. Look for a stationary, camouflaged chrysalis that blends in with the surroundings, often at a slightly angled position.
Adult Horace's duskywing adults can be found in areas where host plants and nectar sources are abundant. Search for flying adults during warm parts of the day or resting individuals on plants in the early morning or late afternoon.
Are Horace's duskywing harmful?
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Beneficial Effects of Horace's duskywing
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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
Horace's duskywing plays a vital role in pollination, fluttering from flower to flower seeking nectar. During this process, it inadvertently gathers and transfers pollen, promoting cross-fertilization and supporting biodiversity.
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