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Morrison's bumble bee

Morrison's bumble bee

Bombus morrisoni

A species of Bumble bees

Bombus morrisoni is a species of bumblebee. It is native to western North America, including the western United States and British Columbia. It is known commonly as the Morrison bumblebee. This bee lives in open scrub habitat. It nests underground and aboveground in structures and grass hummocks. It feeds at many kinds of plants, including milkweed, milkvetch, rabbitbrush, thistles, bee plants, goldenbushes, sunflowers, and goldenrods. It is an important pollinator of alfalfa in some areas. This species has faced some declines, and has not been found recently in several well-sampled areas in its range. It is secure and common in other areas.

Does the Morrison's bumble bee sting humans?
Human Stinging
General Info About Morrison's bumble bee
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Attributes of Morrison's bumble bee
Colors
Brown
Black
Yellow
Habitat
open scrub area; grass hummock
Adult Food Sources
Nectar, pollen
Larva Food Source
Pollen, nectar
Biting/stinging
The Morrison's bumble bee may bite humans actively. Please stay away from it.
Allergy-causing
Not reported
Defensive attack
The Morrison's bumble bee has special defensive behaviors that can trigger an allergic reaction. If there are serious reactions, seek IMMEDIATE medical attention.
Venomous
The Morrison's bumble 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
Not reported
Pest-Eating Predatory
Not reported
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Life Cycle of Morrison's bumble bee
Egg The egg of morrison's bumble bee is small, cylindrical, and creamy white. Laid by the female, it is deposited in a protected environment. This stage is characterized by embryonic development within the shell.
Larva The larva of morrison's bumble bee is legless, grub-like, and grows through molting. It is voracious, feeding primarily on regurgitated food from adults, which fosters remarkable growth.
Pupal In this stage, morrison's bumble bee is encased in a silken cocoon, undergoing metamorphosis. The creature is immobile, its organs and bodily structure transforming radically.
Adult Emerging from the pupa, the adult morrison's bumble 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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Predators of Morrison's bumble bee Larvae
Beetles, earwigs, hoverflies, mammals (like bears and skunks)
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Predators of Adult Morrison's bumble bee
Birds, rodents, lizards, spiders, insectivorous mammals, predatory wasps
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Interesting Facts About Morrison's bumble bee
Morrison's bumble bee have the remarkable ability to buzz-pollinate, vibrating their bodies vigorously to shake pollen loose from the flower, a technique not all pollinators can perform.
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Scientific Classification of Morrison's bumble bee
Class
Bugs
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Order
Bees
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Tips for Finding Morrison's bumble bee
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How Can You Attract Morrison's bumble bee
To attract morrison's bumble bee, providing a mixture of sugar water or planting native flowering plants known to appeal to morrison's bumble bee can be effective.
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Habitat Preferences of Morrison's bumble bee Through Different Life Stages
The larvae of morrison's bumble bee develop in underground nests where the queen has laid eggs, often in soft, loose soil that allows for easy excavation. Adult morrison's bumble bee are commonly found in areas rich in flowering plants, from which they gather nectar and pollen. To seek out the larvae, one would need to carefully dig near identified nesting sites, which are typically away from frequent human disturbance. Searching for adults, on the other hand, involves visiting gardens, meadows, or fields during blooming seasons, when flowers are abundant and the insects are actively foraging.
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When is the Best Time to Observe Morrison's bumble bee
The best time to find morrison's bumble bee is during warmer months when flowers are in bloom, as morrison's bumble bee are active pollinators and are more visible when foraging.
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What is the Best Weather to Observe Morrison's bumble bee
Ideal weather conditions for finding morrison's bumble bee include mild to warm temperatures with clear, sunny skies, as these insects are less active during cold, rainy, or windy days.
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How and Where Can You Find Morrison's bumble bee at Different Life Stages
Larva Larvae of morrison's bumble bee are located within the nest chambers and are not typically seen outside. To find them, one should look for morrison's bumble bee nests in the ground or within cavities, taking care not to disturb or destroy the nest.
Pupal Pupae of morrison's bumble bee remain within the nests, often in a cocoon-like structure formed by the larvae. Observation is possible by locating morrison's bumble bee nests, but pupae should not be disturbed to avoid harm to the developing insects.
Adult Adult morrison's bumble bee can be found visiting flowers, especially those with ample pollen and nectar. One can look for morrison's bumble bee in gardens, meadows, and anywhere native flowering plants grow. Observing at a distance is advised to avoid accidentally harming individuals or interfering with their activity.
Are Morrison's bumble bee harmful?
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Are Morrison's bumble bee harmful to humans?

Most bees are docile and only sting when they are irritated. The sting needles of bees are sharp and toxic, and people will obviously feel pain after being stung. Some bees may also cause swelling, redness, fever and itching. Some sensitive people may experience more severe symptoms or even death.
Harmful Effects of Morrison's bumble bee
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Human Stinging
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Does the Morrison's bumble bee sting humans?

Morrison's bumble bee typically sting only when provoked, such as when their nest is threatened. Unlike honeybees, morrison's bumble bee can sting multiple times without perishing, as their stingers are not barbed. Stings generally cause pain and swelling in humans, with severity varying based on individual allergic reactions. Females possess stingers and are responsible for stinging, while males lack this ability. Human-bumblebee encounters leading to stings are rare, as morrison's bumble bee are not naturally aggressive towards humans.

More Effects of Morrison's bumble bee

Beneficial Effects of Morrison's bumble bee
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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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Pollinator
Pollinator
Attract Plant Feature
Color, Smell
Pollination Behavior Reason
Collect Pollen To Feed Offspring, Eat Pollen Or Nectar
Morrison's bumble bee is a diligent pollinator, buzzing from flower to flower. Attracted by the vibrant colors and enticing scents, it gathers pollen on its hairy body while feeding on nectar. The pollen is then transferred to other flowers, aiding in plant reproduction. Morrison's bumble bee prefers Asteraceae and fruit trees, playing a crucial role in the ecosystem.
Common Questions People Also Ask
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