Calliopsis pugionis

Cockerell, 1925

Pugnosed Miner Bee

Calliopsis pugionis is a solitary ground-nesting in the , described by Cockerell in 1925. It is found in North America, where it excavates burrows in sandy soil. The exhibits with females larger than males, and has a female-biased investment sex ratio consistent with local mate competition theory. It serves as the for the cleptoparasitic bee Holcopasites ruthae.

Pronunciation

How to pronounce Calliopsis pugionis: /kəˈlaɪɒpsɪs pjuːdʒiˈoʊnɪs/

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Habitat

Sandy soil for nesting; open supporting plants for foraging.

Distribution

North America.

Diet

Pollen and nectar collected from plants.

Host Associations

Holcopasites ruthae - Holcopasites ruthae is a cleptoparasitic that exploits nests of Calliopsis pugionis, with females entering burrows to lay .

Life Cycle

Solitary nesting: females excavate burrows in sandy soil and provision with pollen and nectar. present with females larger than males. Investment sex ratio is female-biased.

Behavior

Females construct and provision nests solitarily. Nest has been observed. Males are smaller than females and likely nesting areas.

Ecological Role

of flowering plants. Serves as for cleptoparasitic , contributing to bee dynamics.