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Digrammia irrorata

Digrammia irrorata

Digrammia irrorata

A species of Digrammia

Digrammia irrorata is a moth of the family Geometridae first described by Alpheus Spring Packard in 1876. It is found in the western United States and south-western Canada (from Oklahoma to California, north to British Columbia and Alberta). The wingspan is 23–26 mm. Adults are on wing from March to June in the northern part of the range. There are several generations in the south. The larval food plant is unknown.

General Info About Digrammia irrorata
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Attributes of Digrammia irrorata
Colors
Brown
Black
Yellow
Habitat
dryland
Adult Food Sources
Nectar from flowering plants, nectar from clover, nectar from dandelions, nectar from milkweeds, nectar from goldenrods
Venomous
Not reported
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 Digrammia irrorata
Uncommon but widespread
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Distribution Area of Digrammia irrorata
Western United States, south-western Canada
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Life Cycle of Digrammia irrorata
Egg The round to oval eggs of digrammia irrorata are often laid on host plants. Here, they remain until they hatch, with the embryo developing and growing inside the protective casing.
Larva Upon hatching, the caterpillar phase begins. The larva of digrammia irrorata is primarily focused on feeding and growth, molting several times, and dramatically increasing in size with each stage (instar).
Pupal After the final larval instar, digrammia irrorata enters the pupal stage. Enclosed in a chrysalis, the organism undergoes significant transformation, reshaping its organs and body structure in preparation for adulthood.
Adult The adult digrammia irrorata, emerging from the chrysalis, displays fully developed wings and reproductive organs. Its body, now hardened and colored for survival, embarks on a life centered around reproduction and dispersal.
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Interesting Facts About Digrammia irrorata
Digrammia irrorata uses its distinctive patterning to blend seamlessly with bark, a defense mechanism keeping it hidden from predators.
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Scientific Classification of Digrammia irrorata
Tips for Finding Digrammia irrorata
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Youth Habitat of Digrammia irrorata
Forests and Woodlands, Urban and Suburban Areas, Agricultural and Cultivated Areas
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Adult Habitat of Digrammia irrorata
Forests and Woodlands, Urban and Suburban Areas, Agricultural and Cultivated Areas
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When is the Best Time to Observe Digrammia irrorata
The best time to find adult digrammia irrorata is usually at night as they are nocturnal, while larvae can be found during the day on their host plants.
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What is the Best Weather to Observe Digrammia irrorata
Dry and warm nights are ideal for finding adult digrammia irrorata, while mild, sunny days are best for searching for larvae and eggs.
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How and Where Can You Find Digrammia irrorata at Different Life Stages
Egg Eggs of digrammia irrorata are laid on the underside of leaves. Inspect host plants carefully, looking under leaves for small clusters or rows of eggs.
Larva Digrammia irrorata larvae are often found on host plants, blending in with the foliage. Look for them by inspecting both sides of the leaves and along the branches.
Pupal Pupae of digrammia irrorata can be hidden in leaf litter or in the crevices of bark. Search ground debris and tree trunks near known larval food sources.
Adult Adult digrammia irrorata are typically active at night. Use a light trap with a UV light or hang a white sheet with a backlight to attract them for observation and identification.
Are Digrammia irrorata harmful?
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Harmful Effects of Digrammia irrorata
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Hurt Plant

Digrammia irrorata causes harm to host plants primarily through the act of feeding. These insects chew on the foliage, resulting in the removal of plant tissues. The damage typically appears as holes or notches on leaves, which can disrupt the plant's ability to photosynthesize efficiently, potentially leading to reduced growth and vigour.

More Effects of Digrammia irrorata

Common Questions People Also Ask
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