Proctacanthus

Proctacanthus

Classification

Pronunciation

How to pronounce Proctacanthus: /prɒk.təˈkænθəs/

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

Images

Proctacanthus nearno by the Smithsonian. Used under a CC0 license.
Proctacanthus occidentalis by the Smithsonian. Used under a CC0 license.
Proctacanthus occidentalis by the Smithsonian. Used under a CC0 license.
Proctacanthus occidentalis by the Smithsonian. Used under a CC0 license.
Proctacanthus coquilletti by the Smithsonian. Used under a CC0 license.
Proctacanthus coquilletti by the Smithsonian. Used under a CC0 license.

Summary

Proctacanthus is a genus of robber flies comprising around 18 species, recognizable for their large size and distinctive beards. They are present from Canada to Brazil and demonstrate predatory behaviors during both the larval and adult stages while primarily inhabiting soil-rich environments.

Physical Characteristics

Large robber flies with a prominent beard.

Identification Tips

Look for size and distinct beard; species may vary in coloration and size.

Habitat

Typically found in areas with open soil, often near vegetation since larvae require soil.

Distribution

Canada to Brazil; throughout the US and southern Canada, with 11 species noted in the eastern US.

Diet

Larvae are predatory on soil insects; may also consume roots and decaying plant matter.

Life Cycle

Eggs are laid in crevices in the soil; larvae may take over one year to reach maturity; pupation occurs in soil.

Reproduction

Eggs are laid in the soil; specific details on mating behaviors are not provided.

Ecosystem Role

As predators, adult and larval stages can help control pest populations in their habitats.

Collecting Methods

  • Net capture of adults during active periods on sunny days.
  • Collecting larvae from soil samples.

Preservation Methods

  • Drying specimens for taxonomic studies.
  • Alcohol preservation for larvae.

Tags

  • Proctacanthus
  • Giant Robber Fly
  • Spine-tailed Robber Fly
  • Asilidae
  • Predatory Insects