Spotted Cucumber Beetle vs Secondary Screwworm Fly

Side-by-side species comparison

Attribute Spotted Cucumber Beetle Secondary Screwworm Fly
Scientific Name Diabrotica undecimpunctata Cochliomyia macellaria
Order Coleoptera Diptera
Family Chrysomelidae Calliphoridae
Size 5-7mm 8-12 mm
Habitat Farmland Farmland
Diet Root Feeders Carrion Feeders
Regions North America North America, South America
Conservation Least Concern Least Concern

Spotted Cucumber Beetle

A yellowish-green beetle with eleven black spots on its elytra. It is a significant agricultural pest of cucurbits, corn, and other crops.

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Did You Know?

Its larvae are known as corn rootworms and can cause billions of dollars in crop damage annually.

Secondary Screwworm Fly

A blow fly that breeds in carrion and occasionally infests wounds in livestock. It is widely used in forensic studies in the Americas.

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Did You Know?

Unlike the primary screwworm, it only feeds on dead tissue rather than living flesh.