Larger Grain Borer vs Plain-faced Dronefly
Side-by-side species comparison
| Attribute | Larger Grain Borer | Plain-faced Dronefly |
|---|---|---|
| Scientific Name | Prostephanus truncatus | Eristalis arbustorum |
| Order | Coleoptera | Diptera |
| Family | Bostrichidae | Syrphidae |
| Size | 3-4.5 mm | 9-11 mm |
| Habitat | Gardens | Gardens |
| Diet | Omnivores | Nectar Feeders |
| Regions | Africa, Central America | Europe, North America, Asia |
| 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.
Did You Know?
A predatory beetle, Teretrius nigrescens, was introduced to Africa as a biological control agent against it.
Plain-faced Dronefly
A small, dark dronefly with a distinctive bare facial stripe. It is one of the most common hoverflies visiting garden flowers in summer.
Did You Know?
It can be distinguished from other droneflies by the shiny, hairless stripe down the center of its face.