Asaphes

Pronunciation

How to pronounce Asaphes: /əˈseɪfiːz/

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Summary

Asaphes is a genus of small metallic wasps in the family Pteromalidae. They are known for their role as parasitoids, particularly in controlling aphid populations and other pests.

Physical Characteristics

Asaphes species range from 1-3 mm in size. They have metallic coloration and five-segmented tarsi.

Identification Tips

Look for small metallic-colored wasps with five-segmented tarsi and distinctive wing venation including a marginal vein.

Habitat

Cosmopolitan, found in virtually all habitats due to their wide ecological adaptations.

Distribution

Found globally, with a concentration of around 5 species in specific regions.

Diet

Larvae feed on larval parasitoids of aphids and larval hoverfly predators of aphids. They are hyperparasitoids of aphids.

Life Cycle

Asaphes develop through a life cycle characterized by parasitism, often targeting other insects.

Reproduction

Reproductive modes vary, including solitary and gregarious species. They can be both ecto- and endoparasitoids.

Predators

Predation data specific to Asaphes is limited; however, they may be preyed upon by larger insect species and other parasitoids.

Ecosystem Role

Act as biological control agents by parasitizing pests such as aphids.

Economic Impact

They may aid in controlling populations of agricultural pests, thus beneficial for crop protection.

Evolution

The Pteromalidae family, which includes Asaphes, underwent significant taxonomic revision in 2022, leading to recognition of multiple families from the previously polyphyletic group.

Misconceptions

There is a common misconception that all small wasps are dangerous; however, many are harmless and beneficial in agriculture.

Tags

• Hymenoptera
• Pteromalidae
• Asaphes
• biological control
• parasitoids