Window Fly vs Malay Green Lacewing

Side-by-side species comparison

Attribute Window Fly Malay Green Lacewing
Scientific Name Scenopinus fenestralis Mallada basalis
Order Diptera Neuroptera
Family Scenopinidae Chrysopidae
Size 5-7 mm 14-20 mm wingspan
Habitat Indoors Farmland
Diet Predators Predators
Regions Worldwide Southeast Asia, Taiwan, Southern China
Conservation Least Concern Least Concern

Window Fly

A small shiny black fly often found on windowsills inside buildings. Its larvae are beneficial predators of carpet beetle and clothes moth larvae.

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Did You Know?

Despite being found indoors, it is actually beneficial because its larvae eat destructive carpet beetles.

Malay Green Lacewing

A tropical Asian lacewing with a greenish body and dark wing venation. Commercially reared in Taiwan for pest control in greenhouses.

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Did You Know?

Taiwanese farmers release this species in nethouses to protect strawberry and vegetable crops.