Mitchell's Diurnal Cockroach vs Narrow-winged Bee Fly

Side-by-side species comparison

Attribute Mitchell's Diurnal Cockroach Narrow-winged Bee Fly
Scientific Name Polyzosteria mitchelli Systoechus vulgaris
Order Blattodea Diptera
Family Blattidae Bombyliidae
Size 30-40 mm 7-10 mm
Habitat Deserts & Drylands Deserts & Drylands
Diet Herbivores Nectar Feeders
Regions Australia Europe, Asia, North Africa
Conservation Least Concern Least Concern

Mitchell's Diurnal Cockroach

A large, flightless cockroach with a shiny dark blue-black body found in arid Australia. Unlike most cockroaches, it is active during the day.

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Did You Know?

Its bold daytime activity is thought to be possible because its dark, hard body deters predators.

Narrow-winged Bee Fly

A small, hairy bee fly with a rounded body and a short proboscis compared to Bombylius species. It hovers at flowers in arid habitats, frequently visiting low-growing composites.

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Did You Know?

Its larvae are important natural enemies of grasshoppers, entering and consuming their egg pods in the soil.