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Pennsylvania Dingy Ground Beetle

Pennsylvania Dingy Ground Beetle

Harpalus pensylvanicus

A species of Harpalus, Also known as Pennsylvania harp ground beetle

Pennsylvania Dingy Ground Beetle is a helpful beetle that eats plant seeds. It is named for its native Pennsylvania in Eastern USA. Since it prefers the smaller seeds of weeds to those of crops like hay, it helps to prevent weed infestation in arable crops. However, it can damage strawberry fields. If it needs to be controlled, its light sensitivity can be used to attract it to light traps.

General Info About Pennsylvania Dingy Ground Beetle
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Attributes of Pennsylvania Dingy Ground Beetle
Colors
Brown
Black
Red
Habitat
field
Adult Food Sources
Seeds, grains, small insects, worms, decaying plant matter
Larva Food Source
Invertebrate eggs, small insects, larvae of other insects, plant material, organic detritus
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Phytophagous
Not reported
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Chewing mouthparts
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Life Cycle of Pennsylvania Dingy Ground Beetle
Egg At this initial stage, the eggs of pennsylvania Dingy Ground Beetle are usually laid in clusters. They are small, oval, and may vary in color but are often whitish or translucent. Development at this stage is dependent on temperature and humidity, which influences the hatching time. Eggs contain the developing embryos of pennsylvania Dingy Ground Beetle.
Larva Following hatching, the larvae of pennsylvania Dingy Ground Beetle emerge, featuring a segmented body with a hardened exoskeleton. They are markedly larger than the eggs, are voracious feeders, and continuously molt to allow for growth. Larvae tend to be elongated with distinct color variations which change as they develop through several instars.
Pupal The pupal stage is a transition period where pennsylvania Dingy Ground Beetle undergoes a radical transformation. Secure in a pupal case, they are immobile and vulnerable. During this stage, the insect is metamorphosing, with substantial changes in internal and external structures, leading to the adult form. Color and size can change significantly.
Adult Emerging from the pupa, the adult pennsylvania Dingy Ground 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. Adults display marked changes in color and size from previous stages, now resembling the typical pennsylvania Dingy Ground Beetle.
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Predators of Pennsylvania Dingy Ground Beetle Larvae
Frogs and toads, birds, spiders
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Predators of Adult Pennsylvania Dingy Ground Beetle
Birds, small mammals, spiders, rodents
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Interesting Facts About Pennsylvania Dingy Ground Beetle
Pennsylvania Dingy Ground Beetle can create chemicals in its body that serve as antifreeze, allowing it to survive in sub-zero temperatures.
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Scientific Classification of Pennsylvania Dingy Ground Beetle
Tips for Finding Pennsylvania Dingy Ground Beetle
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Adult Habitat of Pennsylvania Dingy Ground Beetle
Forests and Woodlands, Grasslands and Prairies, Urban and Suburban Areas, Agricultural and Cultivated Areas
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Habitat Preferences of Pennsylvania Dingy Ground Beetle Through Different Life Stages
The eggs of pennsylvania Dingy Ground Beetle are typically laid in the soil or under debris in fields and garden areas. Larvae can be found beneath the ground surface where they pursue their worm-like existence, feeding on other small invertebrates. For the pupal stage, searching within the soil where larvae reside would yield results, as they create a cell to pupate. Adult pennsylvania Dingy Ground Beetle prefer open lands such as agricultural fields, gardens, and grasslands, where they hunt on the ground surface for food and can be observed actively running, especially at night.
Are Pennsylvania Dingy Ground Beetle harmful?
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