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Grey-backed mining bee

Grey-backed mining bee

Andrena vaga

A species of Mining bees

Embodied by a dense coat of dark and silvery setae, grey-backed mining bee emerges as the warmth of spring beckons, with its activity closely tied to the blooming of willows. Unlike its kin, this species forages predominantly on willow pollen, storing it within specialized structures to nourish its brood. As a solitary forager, each female intricately constructs and provisions her own subterranean nursery, ensuring the next generation prevails.

General Info About Grey-backed mining bee
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Attributes of Grey-backed mining bee
Colors
Black
Yellow
White
Habitat
pasture; meadow; heath land; woody glade; coastal area; vicinity of various species of willows
Adult Food Sources
Nectar, pollen
Larva Food Source
Pollen, nectar
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
The Grey-backed mining bee can induce toxic reactions varying in severity. Nevertheless, these toxins primarily target their prey and predators and are usually not fatal to humans.
Non-poisonous
Not reported
Borer
Not reported
Pollinator
The Grey-backed mining bee is often found near the corolla, where its fluffy hairs easily pick up pollen, assisting in the pollination of the plant.
Pest-Eating Predatory
Not reported
Phytophagous
The Grey-backed mining bee feeds on plants, usually without causing significant harm. However, it's important to take the situation seriously if their numbers begin to increase significantly.
Predatory
The Grey-backed mining bee typically preys on other arthropods and does not directly affect plants.
Biting animal or pet
Yes
Mouthparts Type
Chewing-lapping mouthparts
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Species Status of Grey-backed mining bee
It is a widespread black and greyish-white mining bee in continental Europe. It was once considered extinct in Britain.
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Distribution Area of Grey-backed mining bee
Europe
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Life Cycle of Grey-backed mining bee
Egg The development of grey-backed mining bee begins with the egg, which is often oviposited in protected locations. These eggs are minute and typically oval, with limited to no mobility, and possess only the basic structures necessary for development.
Larva Upon hatching, the larva of grey-backed mining bee is worm-like, with a soft body and a voracious appetite. It's distinctly different in form from adults, lacking wings and reproductive structures, and primarily focuses on growth and food consumption.
Pupal In the pupa stage, grey-backed mining bee undergoes transformation within a protective cocoon. This phase is a period of reorganization where tissues and organs develop. The creature is inactive externally but busy internally as it prepares for adulthood.
Adult Emerging from the pupa, the adult grey-backed mining bee'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 Grey-backed mining bee
1.3 - 1.5 cm
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Predators of Grey-backed mining bee Larvae
Beetles, beetle larvae, earwigs, ant lions, ants, flower bug nymphs, spiders
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Predators of Adult Grey-backed mining bee
Birds, rodents, larger insects, spiders, mammals
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Interesting Facts About Grey-backed mining bee
Grey-backed mining bee can navigate using polarized light when the sun is hidden, allowing them to forage efficiently even on overcast days.
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Scientific Classification of Grey-backed mining bee
Class
Bugs
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Order
Bees
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Tips for Finding Grey-backed mining bee
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Youth Habitat of Grey-backed mining bee
Forests and Woodlands, Grasslands and Prairies, Urban and Suburban Areas, Agricultural and Cultivated Areas
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Adult Habitat of Grey-backed mining bee
Forests and Woodlands, Grasslands and Prairies, Urban and Suburban Areas, Agricultural and Cultivated Areas
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How Can You Attract Grey-backed mining bee
As grey-backed mining bee is a type of solitary bee from the Andrena genus, people might use food bait such as sugary solutions or artificial nectar to attract them, though this is not the most common method due to their preference for foraging on flowers.
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Habitat Preferences of Grey-backed mining bee Through Different Life Stages
During the larvae stage, grey-backed mining bee typically reside underground in individual burrows constructed by their mothers in sandy areas, like riverbanks or dunes. To find these larvae, research sandy soils with loose structures suitable for tunneling by adult grey-backed mining bee. As adults, grey-backed mining bee are predominantly found in flowering meadows and gardens where they gather nectar and pollen. Seeking out these adult grey-backed mining bee involves scanning for them on sunny days when they are actively foraging on flowers, especially willows, their early spring preference.
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When is the Best Time to Observe Grey-backed mining bee
The best time to find grey-backed mining bee is during sunny and warm days, especially during their active months which usually align with the flowering period of plants in their habitat.
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What is the Best Weather to Observe Grey-backed mining bee
Grey-backed mining bee prefers clear, warm weather as they are more active on sunny days when temperatures are favorable for flight and foraging.
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How and Where Can You Find Grey-backed mining bee at Different Life Stages
Adult Grey-backed mining bee adults are often seen foraging on flowers, especially those of the willow, their preferred nectar source. To locate them, visit flowering gardens, meadows, or edges of woods during sunny days when these bees are most active.
Larva Grey-backed mining bee larvae develop in underground burrows constructed by the female. To observe larvae without disturbing them, carefully excavating a small area where grey-backed mining bee has been spotted nesting may reveal the presence of larval cells, but this should be done with caution to avoid harm to the bee or its habitat.
Pupal Grey-backed mining bee pupae are located deep within the nesting tunnels in the soil. Locating grey-backed mining bee in this stage is impractical for the casual observer and should be left to professionals who may use non-invasive techniques to study the developing pupae without excavation.
Are Grey-backed mining bee harmful?
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The grey-backed mining bee can cause toxic reactions with a wide range of severity. However, the toxins are typically targeted at their prey and predators. They are usually not fatal to humans.

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Are Grey-backed mining bee harmful to humans?

Grey-backed mining bee not offensive, only when it defends its eggs will it take the initiative to attack. Its claw needles are not powerful and usually cannot penetrate the skin. After being stabbed, they only feel slight pain.
Beneficial Effects of Grey-backed mining bee
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Pollinator
Pollinator
Prefer Plant Type
Willow
Attract Plant Feature
Color, Smell
Pollination Behavior Reason
Collect Pollen To Feed Offspring
Grey-backed mining bee is a vital pollinator for willow trees, drawn to their flowers by vibrant colors and enticing scents. This bee collects pollen to nourish its young, inadvertently transferring it between blooms, thus playing a crucial role in the reproductive cycle of these plants.
Common Questions People Also Ask
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