Platygastroidea

Classification

Phylum: Arthropoda
Subphylum: Hexapoda
Class: Insecta
Order: Hymenoptera
Superfamily: Platygastroidea

Pronunciation

How to pronounce Platygastroidea: /ˌplætɪɡæˈstrɔɪdiə/

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Summary

Platygastroidea is a superfamily of parasitoid wasps recognized as independent since 1977, comprising approximately 4000 described species. It includes several families such as Platygastridae and Scelionidae, and has diverse evolutionary history connected with various insect hosts.

Physical Characteristics

Typically 0.45-4 mm in body length; forewings with 2 or fewer cells enclosed by tubular veins, and may lack a tubular vein on the basal part of the anterior margin. The head lacks a dark H-shaped mark, with toruli often closer together than to the eyes. The hind wing is not stalked and the pronotum typically extends posteriorly to the tegula. Metasomal segments may vary in shape and length; some species have elongated segments and a body under 3 mm long.

Identification Tips

Look for the unique forewing venation, absence of a dark H-shaped mark on the head, and specific characteristics of the pronotum; antennal bases are inserted close to the mouth, and in some species, the metasoma is lens-shaped in cross-section.

Habitat

Commonly found in moist areas.

Distribution

Widespread, with species present in North America and other regions.

Diet

Exclusively parasitic, with ancestral hosts primarily being orthopterans, and various lineages switching to other insect hosts.

Life Cycle

Life cycle details are not provided, but generally involves parasitism on host insects.

Reproduction

Details on reproductive strategies are not provided in the data.

Predators

Predation data is not specified.

Conservation Status

Not specified.

Ecosystem Role

Plays a role in controlling insect populations as parasitoids.

Economic Impact

Not specified; however, they may have roles in pest management.

Cultural Significance