Bathyplectes infernalis

(Gravenhorst, 1820)

Bathyplectes infernalis is a in the . It is a agent of the (), a major agricultural pest in western North America. The has been and released in the United States as part of programs. It is one of several Bathyplectes species used to manage in alfalfa fields.

Bathyplectes infernalis by John Abrams. Used under a CC BY 4.0 license.

Pronunciation

How to pronounce Bathyplectes infernalis: /ˌbæθɪˈplɛktiːz ˌɪnfərˈneɪlɪs/

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

Identification

As a small , B. infernalis can be distinguished from similar by its association with and its geographic distribution. It may be confused with the related B. anurus, which also parasitizes alfalfa weevil but exhibits distinctive -spinning and jumping behaviors in the larval stage. Accurate identification typically requires examination of morphological characters by a .

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Habitat

Alfalfa fields and agricultural landscapes where its , the , occurs. The is associated with cultivated Medicago sativa (alfalfa) stands rather than natural or undisturbed .

Distribution

to Europe (Denmark, Norway). and established in the conterminous 48 United States, where it is present in alfalfa-growing regions.

Diet

The larval stage develops as a within () , eventually killing the . feed on , including that produced by in alfalfa fields.

Host Associations

Hypera postica - primary Larval ; to North America specifically for of this pest

Ecological Role

agent that reduces of the , an economically significant pest of alfalfa. Its presence can decrease reliance on chemical in programs. Interactions with other in alfalfa agroecosystems include indirect benefits from , which supports survival and may enhance rates.

Human Relevance

Used in programs to protect alfalfa from damage. Its effectiveness contributes to reduced , though practices (reduced spraying, strips, flowering ) can further support .

Similar Taxa

Bathyplectes anurusAlso parasitizes and has been released for in western North America. B. anurus is distinguished by larval -spinning and jumping behaviors, which B. infernalis does not exhibit.
Bathyplectes curculionisAnother Bathyplectes used in ; morphological differentiation requires examination.