Phanagenia

Banks, 1933

Species Guides

1

Phanagenia is a of spider wasps in the tribe Ageniellini, Pompilidae. The genus contains only one in North America, Phanagenia bombycina. These are solitary hunters that construct mud nests to house their offspring, provisioning them with paralyzed spiders.

Phanagenia comes by the Smithsonian. Used under a CC0 license.Phanagenia negritos by the Smithsonian. Used under a CC0 license.Phanagenia negritos by the Smithsonian. Used under a CC0 license.

Pronunciation

How to pronounce Phanagenia: //ˌfænəˈdʒeɪniə//

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Identification

Distinguished from other Ageniellini by its slightly larger size compared to the related Auplopus. Phanagenia bombycina is found east of the Rocky Mountains, whereas Auplopus has a more widespread distribution.

Images

Appearance

Small, thin, and wiry . range from 5 mm to 15 mm in length. Most are black, including Phanagenia bombycina, with iridescent black wings.

Habitat

Woodlands and woodland edges. rarely visit flowers.

Distribution

North America; Phanagenia bombycina occurs east of the Rocky Mountains.

Diet

Spiders (paralyzed and used as larval provisions).

Life Cycle

Females construct mud barrel nests, often inside the abandoned nests of the pipe organ mud dauber (Trypoxylon politum). Each nest is provisioned with paralyzed spiders and contains a single . The larva feeds on the paralyzed prey, pupates, and emerges as an .

Behavior

Solitary nest-building . Females are not aggressive and will not attack humans even while constructing nests. Nests are often built inside pre-existing mud structures rather than constructed de novo.

Ecological Role

of spiders. May serve as for parasitic (specific not well documented).

Human Relevance

Non-aggressive; poses no sting risk to humans. Nests are sometimes destroyed as perceived nuisances, but is encouraged. Nests can be collected for rearing to study - relationships.

Similar Taxa

  • AuplopusAlso in tribe Ageniellini with similar mud-barrel nest construction; Phanagenia is slightly larger and has a more restricted distribution.
  • AgeniellaShares tribe Ageniellini and similar nest provisions; distinguished by and geographic range.
  • ErageniaRelated in same tribe with similar nesting .

More Details

Nest site selection

Phanagenia bombycina frequently reuses the abandoned mud nests of Trypoxylon politum (pipe organ mud dauber), building its own mud inside these pre-existing structures.

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Sources and further reading