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Swollen-thighed blood bee

Sphecodes crassus

A species of Blood bees

Sphecodes crassus, common name swollen-thighed blood bee, is a species of bee. It was described by Carl Gustaf Thomson in 1870.

General Info About Swollen-thighed blood bee
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Attributes of Swollen-thighed blood bee
Adult Food Sources
Floral nectar, pollen, honeydew, plant exudates, water
Larva Food Source
Host bee larvae provisions (nectar and pollen)
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
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Species Status of Swollen-thighed blood bee
Common and widespread
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Distribution Area of Swollen-thighed blood bee
Norway
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Life Cycle of Swollen-thighed blood bee
Egg The egg phase represents the very beginning of the swollen-thighed blood bee's life cycle, starting as a tiny, often oval-shaped structure. The egg's size, color, and shape vary but generally are laid discreetly to avoid predators.
Larva After hatching, the larva emerges; this stage of swollen-thighed blood bee is primarily focused on feeding and growth. Larvae often bear little resemblance to adults, lacking functional wings and reproductive organs. They are worm-like in shape and voracious eaters.
Pupal In this stage, the swollen-thighed blood bee is encased within a pupal casing, undergoing significant transformation. This static phase is marked by the reorganization of the larval body into an adult form. The creature is usually immobile and vulnerable.
Adult Emerging from the pupa, the adult swollen-thighed blood 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 Swollen-thighed blood bee Larvae
Birds, spiders, insectivorous mammals
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Predators of Adult Swollen-thighed blood bee
Birds, spiders, preying mantises, lizards
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Scientific Classification of Swollen-thighed blood bee
Class
Bugs
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Order
Bees
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Tips for Finding Swollen-thighed blood bee
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Youth Habitat of Swollen-thighed blood bee
Grasslands and Prairies, Forests and Woodlands, Urban and Suburban Areas, Agricultural and Cultivated Areas
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Adult Habitat of Swollen-thighed blood bee
Grasslands and Prairies, Forests and Woodlands, Urban and Suburban Areas, Agricultural and Cultivated Areas
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How Can You Attract Swollen-thighed blood bee
Since swollen-thighed blood bee are bees, one might use a mixture of sweet substances like sugar water or floral-based attractants to lure them into a trap.
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Habitat Preferences of Swollen-thighed blood bee Through Different Life Stages
To find the larvae of swollen-thighed blood bee, search in underground nests constructed by female bees, often in sunny, well-drained soils where vegetation is sparse. Adults are typically found on or near flowers in meadows, gardens, and woodland edges, with a preference for those in sunny locations where they gather nectar and pollen. Pupae of swollen-thighed blood bee will be ensconced in the brood cells within their birth nests, requiring excavation, while eggs are less conspicuous but will be located in nesting chambers constructed by females, usually in similar environments as for larvae.
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When is the Best Time to Observe Swollen-thighed blood bee
The best time for finding adult swollen-thighed blood bee is during warm and sunny weather when flowers are blooming, typically in the daytime from late morning to early evening when they are most active.
Are Swollen-thighed blood bee harmful?
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Are Swollen-thighed blood bee harmful to humans?

Swollen-thighed blood bee is an expert in brewing honey, and generally does not actively attack people, but it also has stings like other bees. When it is threatened or the nest is destroyed, it will take the initiative to attack. There will be slight pain after being stung, and some sensitive people will appear red and swollen.
Beneficial Effects of Swollen-thighed blood bee
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Pollinator
Pollinator
Attract Plant Feature
Color, Smell
Swollen-thighed blood bee is a diligent pollinator, often seen buzzing from flower to flower. Attracted by the vivid colors and enticing scents, it collects pollen on its hairy body to feed its offspring. As it moves, pollen is transferred, aiding in the fertilization of plants.
Common Questions People Also Ask
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