Orange Black Stink Bug


Spined Predatory Shield Bug - Oechalia schellenbergii

Family Pentatomidae

This page contains pictures and information about Spined Predatory Shield Bugs that we found in the Brisbane area, Queensland, Australia.

Body length 15mm
The Spined Predatory Shield Bug is mottled brown in colour.  It is easily recognised by the sharp spines on either side of the shoulder.
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The above 1st picture was taken in Brisbane Botanic Garden on early winter 2001. It was on a leaf with leaf-mining pattern. It seemed to us that it was looking for the leaf-mining insect. The bugs feed with piercing-sucking mouthparts on caterpillars and other soft body insects. 
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The Spined Predatory Shield Bug is also a predator of the leaf beetle larvae. In mid-summer 2005, we saw a young gum tree in Karawatha Forest which was heavily infected by the leaf beetle larvae. However, near every group of feeding beetle larvae, there was a Spined Predatory Shield Bug attacking them. 
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Eggs and Nymphs 

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1st instars
There are five nymph stages. They are all brightly coloured black and red.  
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Egg-shell                                                              1st instars 
Their eggs are black in colour and are usually laid in multiples of 14. The nymphs are dark red and brown in colour. 
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5th instars 
Above picture shows the young bug with its prey - the leaf beetle larvae

1. Insects of Australia, CSIRO, Division of Entomology, Melbourne University Press, 2nd Edition 1991, pp 509.
2. Stink Bugs of Australia - FaunaKeys,  Australian Museum online 2003.
3. Oechalia Stål, 1862 - by Gerry Cassis, Emma Betts and Michael Elliott, Stink Bugs, Fauna Net, Australian Museum 2002.   
4. Oechalia schellenbergii (Guérin, 1831) - Australian Biological Resources Study, Department of the Environment and Heritage, Australia 2005. 
5. Plant-feeding and Other Bugs (Hemiptera) of South Australia. Heteroptera-Part I - Gross, G.F. (1975). Adelaide: A.B. James, p229. 
6. Predatory Bugs 1 Shield Bugs - by Charlma Phillips, PIRSA Forestry, 1993.
7. Spined predatory shield bug - Primary Industries & Fisheries, Queensland. 


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Last updated: September 05, 2010.