Vanhorniidae

Classification

Phylum: Arthropoda
Subphylum: Hexapoda
Class: Insecta
Order: Hymenoptera
Superfamily: Proctotrupoidea
Family: Vanhorniidae

Pronunciation

How to pronounce Vanhorniidae: /vænˈhɔrn.i.aɪ.iːd/

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Summary

Vanhorniidae is a family of parasitic wasps with only two extant genera, native to the Northern Hemisphere, serving as parasitoids of beetle larvae from the Eucnemidae family.

Physical Characteristics

Body size ranges from 4.0 to 6.7 mm. Strong exodont mandibles are a characteristic feature.

Identification Tips

Identification can often be made through examination of mandibles and body size.

Habitat

Native to the Northern Hemisphere, where they inhabit areas hosting their beetle hosts.

Distribution

Primarily found in the Northern Hemisphere.

Diet

Larvae of beetles belonging to the family Eucnemidae, as they are parasitoids.

Life Cycle

Life cycle is typical of parasitic wasps, involving an egg stage followed by larval development within the host beetle larvae.

Reproduction

Reproduces through parasitism, with females laying eggs in or on host larvae.

Ecosystem Role

Acts as a biological control agent by parasitizing beetle larvae.

Collecting Methods

Sampling hosts
Light trapping

Preservation Methods

Ethanol preservation
Pinning specimens

Similar Taxa

Misconceptions

Some may confuse them with other non-parasitic wasps due to their size and appearance.