Larger Grain Borer vs Silvery Blue

Side-by-side species comparison

Attribute Larger Grain Borer Silvery Blue
Scientific Name Prostephanus truncatus Glaucopsyche lygdamus
Order Coleoptera Lepidoptera
Family Bostrichidae Lycaenidae
Size 3-4.5 mm 22-30 mm wingspan
Habitat Gardens Meadows
Diet Omnivores Omnivores
Regions Africa, Central America North America
Conservation Not Evaluated Least Concern

Larger Grain Borer

A devastating pest of stored maize and dried cassava in Africa. It can cause grain weight losses exceeding 30% in untreated stores.

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Did You Know?

A predatory beetle, Teretrius nigrescens, was introduced to Africa as a biological control agent against it.

Silvery Blue

A small silvery-blue butterfly with a neat row of round black spots ringed in white on the grey underside. It is one of the first blue butterflies to emerge in spring.

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Did You Know?

The larvae are frequently attended by ants, which protect them in exchange for sugary honeydew secretions.