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Triple-spotted pug

Triple-spotted pug

Eupithecia trisignaria

A species of Pugs

Eupithecia trisignaria, the triple-spotted pug, is a moth of the family Geometridae. It is found from across the Palearctic realm from Europe to Siberia. The wingspan is about 20 mm. The ground colour of the forewings is fuscous (brownish-grey, tawny). The darker striae (crosslines) are indistinct and obtusely angulated. The edges of a vague geniculate median band are marked faintly darker, especially as two dark costal spots which form the corners of an equilateral triangle with the discal spot. The forewing fringes are chequered to not chequered. The hindwings are fuscous with only very faint striae and fasciae; even less conspicuously patterned than the forewings but with a clear dark fuscous, shortly linear discal mark. There is one generation per year with adults on wing from June to August. The larvae feed on various Apiaceae species, including Angelica and Heracleum species. Larvae can be found from August to October. It overwinters as a pupa.

General Info About Triple-spotted pug
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Attributes of Triple-spotted pug
Colors
Brown
Black
Gray
White
Habitat
Slope of chalk downland; dense woodland
Adult Food Sources
Floral nectar, honeydew, plant sap, fruit juices, pollinator byproduct
Larva Food Source
Leaves of host plants, flowers, herbs, shrubs, woody plants
Non-poisonous
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Siphoning mouthparts
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Species Status of Triple-spotted pug
Stable population, rare
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Distribution Area of Triple-spotted pug
Palearctic realm, Europe, Siberia
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Life Cycle of Triple-spotted pug
Egg The embryonic phase of triple-spotted pug begins as an egg, typically oval-shaped and diminutive, often possessing a protective outer layer. Eggs are usually laid in clusters and can vary subtly in coloration.
Larva The larva of triple-spotted pug, commonly known as a caterpillar, undergoes several molts shedding its exoskeleton. With each molt, caterpillars increase in size, often altering in color and pattern, which can provide improved camouflage or warning signals to predators.
Pupal The pupa stage is when triple-spotted pug undergoes a dramatic transformation within a chrysalis. The organism is largely immobile during this phase and undergoes significant internal reorganization, resulting in changes to its shape, size, and the development of adult structures.
Adult Emerging from the pupa, the adult triple-spotted pug’s development is marked by the presence of wings and functional reproductive organs. Body coloration often becomes more vibrant and is finalized during this stage, signifying sexual maturity, with wings developed for dispersal and mating.
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Predators of Triple-spotted pug Larvae
Birds, small mammals, spiders, ants, wasps
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Scientific Classification of Triple-spotted pug
Tips for Finding Triple-spotted pug
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Youth Habitat of Triple-spotted pug
Forests and Woodlands, Grasslands and Prairies, Agricultural and Cultivated Areas
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Adult Habitat of Triple-spotted pug
Forests and Woodlands, Grasslands and Prairies, Agricultural and Cultivated Areas, Urban and Suburban Areas
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How Can You Attract Triple-spotted pug
Sweet baits or artificial light may attract triple-spotted pug due to its nocturnal and phototactic behavior.
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Habitat Preferences of Triple-spotted pug Through Different Life Stages
The eggs of triple-spotted pug are typically laid on the host plants where the larvae will feed, such as trees or shrubs in wooded areas. For the caterpillar stage, searching the foliage of these plants, especially at night when they are most active, is the most effective. Pupae are often found hidden in crevices or on the underside of leaves in the same habitats. Adults can usually be found resting on tree bark or flying near the host plants after sunset, as this is when they are most likely to mate and lay eggs. To find triple-spotted pug at different stages, one would examine the host plants and surrounding vegetation in areas where these insects are known to occur.
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How and Where Can You Find Triple-spotted pug at Different Life Stages
Egg Eggs of triple-spotted pug are minutely small and might be found on the underside of host plant leaves. Searching requires careful visual inspection with a magnifying glass.
Larva Triple-spotted pug caterpillars can be camouflaged and resemble twigs or plant stems. Look for them on host plants, gently turning leaves to see both their upper and lower surfaces.
Pupal Pupae of triple-spotted pug may be found in leaf litter or soil near the host plants. They can also be attached to branches or concealed within the bark of trees. Examine these areas closely.
Adult Adult triple-spotted pug can be lured with light traps or sugar baits set up in the evening. They are also found resting on tree trunks or foliage during the day but blend into their surroundings well.
Are Triple-spotted pug harmful?
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