Trypoxylon

Trypoxylon

Classification

Pronunciation

How to pronounce Trypoxylon: /triːˈpɒksɪlən/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Images

Organ-pipe Mud-dauber Wasps (Trypoxylon politum) - London, Ontario 2015-07-16 (01) by Ryan Hodnett. Used under a CC BY-SA 4.0 license.
Square-headed wasp (Crabronidae, Trypoxylon texense) (28419802672) by Insects Unlocked
. Used under a CC0 license.
Square-headed wasp (Crabronidae, Trypoxylon texense (Saussure)) (36296561305) by Insects Unlocked
. Used under a CC0 license.
Square-headed wasp (Crabronidae, Trypoxylon texense) (28419802502) by Insects Unlocked
. Used under a CC0 license.
Square-headed wasp (Crabronidae, Trypoxylon spinosum (Cameron)) (36164272181) by Insects Unlocked
. Used under a CC0 license.
Organ-pipe Mud-dauber Wasp (Trypoxylon politum) Nest - Great Swamp National Wildlife Refuge, New Jersey 2023-02-25 (02) by Ryan Hodnett. Used under a CC BY-SA 4.0 license.

Summary

Trypoxylon is a genus of mud daubers within the Crabronidae family, known for their unique hunting behavior of paralyzing spiders to feed their larvae and their distinctive nesting strategies.

Physical Characteristics

The 'notched' eyes and clavate (club-shaped) abdomen are very distinctive features of the Trypoxylon genus.

Identification Tips

Look for the notched eyes and body shape, which is typical for the genus.

Habitat

The species nest in pre-existing tunnels like beetle borings or construct their nests from mud in various environments.

Distribution

Represented worldwide, with significant numbers in the Palearctic, Nearctic, Afrotropic, Neotropic, Australasia, and Indomalayan realms. 28 species in the US, 16 in Canada.

Diet

Active hunters of spiders, which they paralyze with venom for provisioning their larvae.

Life Cycle

Females build nests and provide paralyzed spiders as food for the larvae.

Reproduction

Nest construction varies; some species create mud nests, while others use existing cavities and seal them with mud.

Ecosystem Role

Trypoxylon wasps play a role in controlling spider populations by hunting them.

Collecting Methods

  • Netting adults
  • Excavating nests
  • Observational field study

Preservation Methods

  • Pinning
  • Alcohol preservation
  • Embedding in resin

Misconceptions

They are often confused with other wasps due to their predatory nature and nesting habits.

Tags

  • Trypoxylon
  • Hymenoptera
  • Crabronidae
  • Mud Daubers