Order : Hemiptera (True Bugs)
Family : Coreidae
Common Name : Shield Bugs
Pentatomoidea is a superfamily of insects in the Heteroptera suborder of the Hemiptera order and, as such, share a common arrangement of sucking mouthparts. They are commonly referred to as shield bugs. They get their name because when viewed from above, have a distinctive shield-like shape. Shield bugs have glands in their thorax between the first and second pair of legs which produce a foul smelling liquid. This liquid is used defensively to deter potential predators and is sometimes released when the bugs are handled carelessly. For this reason, they are also referred to as stink bugs.
Pycanum rubenss is a species of shield bug in the family of Tessaratomidae. It is probably the most commonly found shield bug in Singapore. The adult is about 3 cm long and they are usually spotted on Simpoh air (Dillenia suffruticosa), their host plant.
The nymphs look quite different from adults. They are smaller in size and without wings. The nymphs have 3 colours form ie. light green, orange and red. I had only seen the red form so far.
Cantao ocellatus s a species of shield bug in the family of Scutelleridae. They are often found on the native plant, balek angin, Mallotus paniculatus. I had seen this colourful shield bug twice, at the forest edge of Rifle Range Road and a canal in Jurong Woods.
Palomena prasina is a green shield bug belonging to the family of Pentatomidae. They are uncommon and I had spotted it only once near a canal in Jurong Woods.
An unknown shield bug with a human face on the back of its shield was spotted at Kranji Nature Trail. Please let me know if you know its ID.
Another unknown shield bug photographed in Fraser’s Hill, Malaysia.
2. National University of Singapore’s Publication on Cantao ocellatus