Alfalfa Weevil Parasitoid vs Two-spotted Stink Bug

Side-by-side species comparison

Attribute Alfalfa Weevil Parasitoid Two-spotted Stink Bug
Scientific Name Bathyplectes curculionis Perillus bioculatus
Order Hymenoptera Hemiptera
Family Ichneumonidae Pentatomidae
Size 2-4 mm 9-12 mm
Habitat Farmland Farmland
Diet Parasitoids Predators
Regions Europe, North America North America
Conservation Least Concern Least Concern

Alfalfa Weevil Parasitoid

A small parasitoid wasp that attacks alfalfa weevil larvae in North America. It was introduced from Europe as a classical biological control agent.

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Did You Know?

This wasp reduced alfalfa weevil populations by over 75% in some areas after its introduction.

Two-spotted Stink Bug

A colorful predatory stink bug with bold red or orange and black markings. It is particularly valued for its appetite for Colorado potato beetle larvae. The color pattern is variable but always includes two dark spots on the pronotum.

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Did You Know?

It can consume up to 100 Colorado potato beetle eggs per day, making it one of the most effective natural predators of this major crop pest.