Western Boxelder Bug vs Sergenti Sandfly

Side-by-side species comparison

Attribute Western Boxelder Bug Sergenti Sandfly
Scientific Name Boisea rubrolineata Phlebotomus sergenti
Order Hemiptera Diptera
Family Rhopalidae Psychodidae
Size 11-14 mm 2-3 mm
Habitat Woodlands Woodlands
Diet Seed Feeders Blood Feeders
Regions Western North America Mediterranean, Middle East, Central Asia, North Africa
Conservation Least Concern Least Concern

Western Boxelder Bug

A red and black bug very similar to the eastern boxelder bug but found in western North America. It forms large overwintering aggregations on buildings and fences near boxelder trees. It is a nuisance pest but causes no structural damage.

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Did You Know?

When crushed, it stains fabrics and surfaces with a reddish-orange dye from its body fluids, which is why it should be vacuumed rather than squashed when found indoors.

Sergenti Sandfly

A small sandfly with a broad geographic range across the Old World, serving as the vector of Leishmania tropica, which causes anthroponotic cutaneous leishmaniasis. It is adapted to both urban and periurban environments. It breeds in rubble, stone walls, and rodent burrows.

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Did You Know?

Cutaneous leishmaniasis transmitted by this fly was historically called 'Aleppo boil' or 'Baghdad boil' after the cities where it was common.