Hibiscus Harlequin Bug

Scientific Name: Tectocoris diophthalmus

Order & Family: Hemiptera: Scutelleridae

Size: 15mm to 20mm in length

Hibiscus Harlequin Bug

Natural Habitat

Found in urban gardens, coastal scrub, and forests, particularly on plants within the Malvaceae family.

Diet & Feeding

Herbivorous; it uses piercing-sucking mouthparts to feed on young shoots, flower buds, and seeds of hibiscus, cotton, and bottle trees.

Behavior Patterns

They undergo incomplete metamorphosis. Females are known to exhibit maternal care by guarding their egg clusters until they hatch, protecting them from predators and parasitic wasps.

Risks & Benefits

Considered a minor pest to ornamental hibiscus and commercial cotton crops. While they do not bite humans, they can emit a foul-smelling chemical deterrent if handled.

Identified on: 4/10/2026