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Strawberry Seed Beetle

Strawberry Seed Beetle

Harpalus rufipes

A species of Harpalus

Generally a very common species, the strawberry Seed Beetle is a ground beetle that feeds on a wide array of seeds and insects. Adult beetles are considered a serious pest of grain cereals and other plants such as strawberries. It is a nocturnal insect that sometimes enters houses, following the source of light. It has wings, but it rarely seems to fly.

General Info About Strawberry Seed Beetle
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Attributes of Strawberry Seed Beetle
Colors
Brown
Black
Orange
Habitat
Stones and logs in open, dry areas; arable fields
Adult Food Sources
Seeds, fruit, caterpillars, other insects, decaying plant matter
Larva Food Source
Insect larvae, aphids, small arthropods, eggs of other insects, soft-bodied invertebrates
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
Phytophagous
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Chewing mouthparts
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Species Status of Strawberry Seed Beetle
Common
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Distribution Area of Strawberry Seed Beetle
Canada, United States
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Life Cycle of Strawberry Seed Beetle
Egg The small, oval eggs of strawberry Seed Beetle are laid in soil. Color varies from white to pale yellow. They lack mobility and are dependent on the surrounding environment for protection and temperature regulation.
Larva Upon hatching, strawberry Seed Beetle larvae exhibit elongated bodies with distinct segmentation. They lack wings, are often lighter in color than adults, voraciously feed for growth, and molt several times.
Pupal Strawberry Seed Beetle's pupal form is inactive and encased in a protective cocoon or cell underground. This stage shows intermediate characteristics between larva and adult, as tissues and organs undergo reorganization.
Adult Emerging from the pupa, the adult strawberry Seed Beetle'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 Strawberry Seed Beetle
1.4 - 1.6 cm
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Predators of Strawberry Seed Beetle Larvae
Frogs, toads, spiders, insectivorous birds, small mammals
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Predators of Adult Strawberry Seed Beetle
Birds, small mammals, reptiles, larger spiders, centipedes
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Interesting Facts About Strawberry Seed Beetle
Adult strawberry Seed Beetle possess specialized glands that release noxious chemicals to deter predators, an effective defense mechanism seldom seen in their order.
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Scientific Classification of Strawberry Seed Beetle
Tips for Finding Strawberry Seed Beetle
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Youth Habitat of Strawberry Seed Beetle
Forests and Woodlands, Grasslands and Prairies, Urban and Suburban Areas, Agricultural and Cultivated Areas
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Adult Habitat of Strawberry Seed Beetle
Forests and Woodlands, Grasslands and Prairies, Urban and Suburban Areas, Agricultural and Cultivated Areas
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How Can You Attract Strawberry Seed Beetle
No specific trap food is utilized as strawberry Seed Beetle are generalist predators and their diet is not specialized enough to use bait for trapping purposes.
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Habitat Preferences of Strawberry Seed Beetle Through Different Life Stages
Eggs of strawberry Seed Beetle are usually laid in the soil where they can find protection and humidity. Larvae prefer to reside under rocks, leaf litter, or within the top layer of soil where organic matter is abundant for them to feed on. As they progress into pupae, they remain in the soil, but they seek out slightly deeper and safer locations to undergo metamorphosis. When searching for adults, look around fields, gardens, and edges of forests, especially on the ground near sources of plants they consume since this is their preferred habitat for feeding and mating.
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When is the Best Time to Observe Strawberry Seed Beetle
Night-time is the most suitable time to find adult strawberry Seed Beetle, as they are nocturnal and more active during this period.
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What is the Best Weather to Observe Strawberry Seed Beetle
Warm and humid conditions are typically more suitable for finding strawberry Seed Beetle, as these conditions favor the activity and movement of many ground beetles.
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How and Where Can You Find Strawberry Seed Beetle at Different Life Stages
Larva Larvae of strawberry Seed Beetle can be found in the soil or under rocks and leaf litter. One can search for them by gently turning over these objects and inspecting the undersides.
Pupal Pupae of strawberry Seed Beetle are more stationary and are buried in the soil. Locating them requires carefully digging in areas where larvae are found, taking care not to damage the pupae.
Adult Adult strawberry Seed Beetle can be found on the ground in various habitats, including fields, forests, and gardens. Searching for them at night with a flashlight, or using pitfall traps, can increase the chances of observation.
Are Strawberry Seed Beetle harmful?
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Beneficial Effects of Strawberry Seed Beetle
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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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Predators of Pests
Predators of Pests
Stage
Adults, Larvae
Purpose
Feed Itself
Diets
Aphids, Caterpillars
Strawberry Seed Beetle, as a ground beetle, is a voracious predator in both adult and larval stages. It primarily consumes aphids and caterpillars, among other soft-bodied pests. Strikingly, strawberry Seed Beetle targets these pests not only to feed itself, but also to regulate pest populations in their habitats, acting as a biological control agent. This beetle's predation is known for its agility and efficiency in pest reduction.
Common Questions People Also Ask
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