Cotton Harlequin Bug

About 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.

How to Identify Cotton Harlequin Bug

Cotton Harlequin Bug (Tectocoris diophthalmus) belongs to the order Hemiptera, family Scutelleridae. Adults typically measure 15-20 mm.

Cotton Harlequin Bug Habitat

Cotton Harlequin Bug is found in beaches & coastal habitats, particularly across Australia, Oceania. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.

Cotton Harlequin Bug Diet and Feeding

Cotton Harlequin Bug feeds on plant sap by piercing stems and leaves with specialised mouthparts. Sap feeders extract nutrients directly from the plant's vascular system.

Where Is Cotton Harlequin Bug Found?

Cotton Harlequin Bug can be found in Australia, Oceania, where it inhabits beaches & coastal environments. Its distribution is influenced by climate, food availability, and habitat suitability.

Is Cotton Harlequin Bug Dangerous?

Cotton Harlequin Bug is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.

Cotton Harlequin Bug Role in Nature

Cotton Harlequin Bug is part of the food web as a primary consumer, feeding on plant material. It serves as an important food source for birds, bats, amphibians, and other insectivores, connecting plant energy to higher trophic levels.

Seasonal Activity