Cotton Harlequin Bug vs Mexican Kissing Bug

Side-by-side species comparison

Attribute Cotton Harlequin Bug Mexican Kissing Bug
Scientific Name Tectocoris diophthalmus Triatoma dimidiata
Order Hemiptera Hemiptera
Family Scutelleridae Reduviidae
Size 15-20 mm 24-32 mm
Habitat Beaches & Coastal Underground
Diet Sap Feeders Blood Feeders
Regions Australia, Oceania Mexico, Central America, Colombia, Ecuador
Conservation Least Concern Least Concern

Cotton Harlequin Bug

One of Australia's most colourful insects, with a brilliant metallic orange and iridescent blue-black shield-shaped body. The colour pattern varies between individuals, with females being larger and more brightly marked.

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Did You Know?

Females guard their eggs and young nymphs, standing over them protectively in a rare display of maternal care for a bug.

Mexican Kissing Bug

A major Chagas disease vector in Central America and Mexico found in both domestic and peridomestic habitats. Adults are attracted to lights and can fly into homes.

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Did You Know?

It is one of the few triatomine species that regularly invades homes by flying toward artificial lights.