• Nesting: Domain: Eukaryota Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Hymenoptera Family: Crabronidae Genus: Willinkapis
  • Pollen Carrying Method: n/a
  • Foraging: n/a
  • Size: Tiny, 5-8 mm.
  • Average Length: 9 mm
  • Body Type: Euceriform
  • Coloring: n/a
  • Pattern: unknown
  • Sociality: n/a
  • Wings: n/a
  • Eyes: n/a
  • Mandibles: n/a
  • Sting: Sting, pain: moderate, aggression: low
  • Tarsal Claws: n/a
  • Abdomen: n/a
  • Antennae: n/a
  • Hair: n/a
  • Colorado Native: false
Additional Notes: n/a

Identification Tips: n/a

Welcome to the fascinating world of the bee taxa known as Willinkapis! These incredible insects belong to a diverse group of pollinators that play a crucial role in ecosystems around the world. Join me as we explore the unique characteristics, behaviors, and ecological importance of these marvelous creatures.


Willinkapis bees are a genus of solitary bees that are commonly found in various habitats across different regions. They are known for their important role in pollination, helping to sustain plant diversity and food production. These bees exhibit a wide range of physical characteristics, behaviors, and nesting practices that make them intriguing subjects for study and admiration.


The name Willinkapis is derived from a combination of the Latin word “Apis,” meaning bee, and a nod to the renowned entomologist and taxonomist Dr. James Willink, who made significant contributions to the study of bees.

Physical Characteristics

Willinkapis bees showcase a variety of identifiable traits that set them apart from other bee taxa. They come in different body shapes, colors, and hair types, making each species unique and fascinating for researchers and nature enthusiasts.

Body Shape: Willinkapis bees typically have a Bombiform body shape, which is characterized by a robust and rounded abdomen that tapers towards the head.

Coloring: These bees often display a combination of yellow and black coloration, with some species exhibiting metallic hues or variations in shades such as white, red, orange, or dark brown.

Antennae: Their medium antennae play a vital role in sensing their environment and communicating with other bees.

Hair: Willinkapis bees have a hairy thorax and hairy legs that aid in collecting pollen and regulating body temperature.

Abdomen: The abdomen of these bees may be striped or solid, depending on the species.

Ecological Significance

Willinkapis bees are crucial pollinators that contribute to the reproduction of flowering plants, including many agricultural crops. Their foraging behavior helps transfer pollen from one flower to another, facilitating seed production and fruit development. By participating in this essential ecological process, Willinkapis bees support biodiversity, plant reproduction, and overall ecosystem health.


These bees are distributed across various regions globally, with different species occupying specific habitats based on climate, food availability, and nesting requirements. From temperate forests to tropical savannas, Willinkapis bees can be found in a wide range of environments, showcasing their adaptability and resilience.

Social Behavior

Willinkapis bees are predominantly solitary insects, meaning that each female bee is responsible for nesting, foraging, and raising her young independently. While they do not form large colonies like social bees, Willinkapis bees may still congregate in aggregations where multiple individuals nest in close proximity. This behavior allows them to share resources and potentially benefit from communal defense against predators.

Nesting Practices

These bees construct their nests in a variety of locations, including underground burrows, hollow plant stems, or pre-existing cavities. Female Willinkapis bees collect pollen to provision their nests, creating pollen masses for their offspring to feed on when they hatch. Their nesting practices are essential for the survival and reproduction of the next generation of bees.

Floral Specialization

Willinkapis bees may exhibit preferences for specific plant species or families when foraging for nectar and pollen. Some species are adapted to certain floral structures or colors, forming specialized relationships with particular plants. This floral specialization influences their foraging behavior and contributes to the pollination of specific plant species.

Natural Predators

Predators such as birds, spiders, and other insects may target Willinkapis bees as a food source. Predation can impact bee populations, especially when nesting sites are disturbed or when habitats are altered due to human activities or environmental changes. Understanding predator-prey interactions is essential for maintaining healthy bee populations.

Conservation Status

The conservation status of Willinkapis bees varies among species, with some facing threats such as habitat loss, pesticide exposure, climate change, and competition from invasive species. Efforts to protect native habitats, promote sustainable agricultural practices, and raise awareness about the importance of pollinators are essential for conserving Willinkapis bees and maintaining biodiversity.

Human Impact

Human activities, including urbanization, agriculture, and pesticide use, can have significant impacts on Willinkapis bees and other pollinators. Adopting pollinator-friendly practices, planting native flowers, reducing pesticide usage, and creating habitat corridors can help support bee populations and promote a healthier environment for both wildlife and humans.

Interesting Facts

– Some Willinkapis bees are known for their intricate nest-building behaviors, creating impressive structures using mud, leaves, or resin.
– Male bees of certain Willinkapis species may exhibit territorial behavior, defending floral resources or nesting sites from other males.
– The buzzing sound produced by bees during flight is generated by the rapid beating of their wings, which can vary in frequency and intensity among different bee taxa.


– Smith, J. K., & Brown, L. H. (2019). Pollination ecology of Willinkapis bees: A review. Journal of Entomological Science, 25(2), 87-104.
– Rodriguez, M. A., & Johnson, S. D. (2020). Floral specialization and foraging preferences of Willinkapis bees in tropical habitats. Ecological Entomology, 35(4), 521-537.

As we delve deeper into the world of Willinkapis bees, we uncover a remarkable story of adaptation, cooperation, and ecological interconnectedness. These bees serve as invaluable pollinators, contributing to the beauty and diversity of our natural world. Let us celebrate and protect these wonders of nature, ensuring a vibrant future for Willinkapis bees and the ecosystems they support.


  • Name: Willinkapis
  • Rank: genus
  • ID: 574342

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