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Annulet

Annulet

Charissa obscurata

A species of Charissa

Charissa obscurata, the annulet or Scotch annulet, is a moth of the family Geometridae. The species was first described by Michael Denis and Ignaz Schiffermüller in 1775. It is found in most of Europe including the European part of Russia and in Asia Minor, the Caucasus , Armenia and Azerbaijan. In the mountains it rises up to 1800 meters. The habitat is rocky dry grasslands, boulder corridors, quarries as well as rocky steppe heaths and wine-growing areas. The wingspan is 27–32 mm. It is a variable species, whose ground colour generally reflects the area it inhabits. It is whitish or pale grey in limestone and chalky districts. Darker forms are found in areas with peaty soils. The circular O marks on all four wings are typical but may be vague. The forewings have strongly toothed lines, whose which continue on the hindwings. The margin of the large hindwing is very heavily ruffled and incised, which differ from other species of Charissa moths. Adults are on wing from July to August. The larvae feed on various herbaceous plants, including Calluna species, Viscaria vulgaris, Sedum telephium and Rubus species.

General Info About Annulet
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Attributes of Annulet
Colors
Black
Gray
White
Habitat
Rocky dry grassland; boulder corridor; quarry; rocky steppe heath; wine-growing area
Adult Food Sources
Flower nectar, honeydew, sap extrusions, decaying organic matter, pollen
Larva Food Source
Lichens, alga, mosses, leaf surface fungal growths, plant leaves
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
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Species Status of Annulet
Widespread in Europe
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Distribution Area of Annulet
Most of Europe
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Predators of Adult Annulet
Bats, birds, rodents, spiders
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Interesting Facts About Annulet
Annulet is known to produce a series of short clicks as a defense mechanism to deter predators, a behavior rarely observed in its order.
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Scientific Classification of Annulet
Tips for Finding Annulet
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Youth Habitat of Annulet
Forests and Woodlands
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Habitat Preferences of Annulet Through Different Life Stages
The larvae of annulet are typically found on or near their host plants, often in moorlands, open woodlands, or heathlands, where they feed on various vegetation. The pupae often reside in concealed locations close to the ground, sometimes in the litter or soil, or within the crevices of bark. Adults preferentially frequent areas with abundant flowering plants, as they are nocturnal and attracted to nectar sources. Searching for these stages involves careful inspection of plant leaves and stems for larvae, checking the ground or beneath bark for pupae, and visiting flowering sites at night or using light traps to attract and locate adult annulet.
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When is the Best Time to Observe Annulet
The best time to find adult annulet is usually at night when they are actively seeking mates and food. The larvae, on the other hand, might be found during the day when they are active on their host plants.
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What is the Best Weather to Observe Annulet
Calm, warm evenings are most suitable for finding adult annulet since they are less active in cold or windy conditions. For larval stages, overcast days might be best as harsh sunlight can cause them to hide.
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How and Where Can You Find Annulet at Different Life Stages
Egg Annulet eggs are often laid on host plants. To find them, look for clusters of tiny eggs on the underside of leaves of known hosts in the area.
Larva Annulet caterpillars blend in with twigs and branches due to their colors and shapes. Examine host plants closely for caterpillars that may be mimicking plant parts.
Pupal Annulet pupae may be attached to twigs or under leaves or may be underground, depending on the species. Look for them in leaf litter or just below the soil surface near host plants.
Adult Annulet are nocturnal and attracted to light, so setting up a light trap with a white sheet can be very effective. They may also visit sugar baits.
Are Annulet harmful?
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Common Questions People Also Ask
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