Shield bugs

Discuss natural history subjects not strictly related to birds. Reports of interesting mammal, reptile, and invertebrate sightings are welcome.
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David Riddell
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Re: Shield bugs

Postby David Riddell » Wed Dec 12, 2018 11:09 am

Slowly working my way through the shield bugs, though still a few to find! (Hopefully never a marmorated...). Waiting in the car for the Cook Strait ferry in Picton on Sunday afternoon I found this pittosporum shield bug (Monteithiella humeralis) crawling on my arm. Not sure when it joined the trip - had stayed the night in Upper Moutere, then done some stops unsuccessfully looking for wood ducks around Mapua, don't remember any pittosporums.
Picton shield bug 2.jpg
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Picton shield bug 1.jpg
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flossiepip
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Re: Shield bugs

Postby flossiepip » Thu Dec 13, 2018 4:42 pm

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I'd forgotten about this thread!
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David Riddell
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Re: Shield bugs

Postby David Riddell » Fri Dec 14, 2018 8:40 am

Great photos as always, flossiepip. So the first one is a brown soldier bug (Cermatulus nasalis), and the third is a forest shield bug (Oncacontias vittatus), but what's that one in the middle???
flossiepip
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Re: Shield bugs

Postby flossiepip » Fri Dec 14, 2018 10:47 am

Sorry David, its Rhopalimorpha lineolaris-Family Acanthosomatidae. A shield bug! Not my id I'm not that clever. Its a very handsome, striking bug though I think. You did brilliantly on the other id's.
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David Riddell
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Re: Shield bugs

Postby David Riddell » Fri Dec 14, 2018 5:02 pm

Argh, so there's another shield bug family?! Just checked the NZ Inventory of Biodiversity, looks like only four local species in 2 genera, so not too hard to get to grips with...
Beautiful animal, where did you find it?
EDIT: Looking again, O. vittatus is also an acanthosomatid and not a pentatomid, so the two families really do look very similar to the nonspecialist eye.
flossiepip
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Re: Shield bugs

Postby flossiepip » Fri Dec 14, 2018 10:28 pm

Far North, Northland.
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David Riddell
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Re: Shield bugs

Postby David Riddell » Fri Mar 20, 2020 9:18 am

After more than two years of looking out for them, finally spotted my first native green shield bug, Glaucias amyoti, in my vegetable garden! Don't seem to be many shield bugs around here this year, possibly because of the drought, but this one stood out as being a very pretty bright shiny green, with the main diagnostic feature being the lack of the three pale dots across the back. It didn't seem to like the attention I was paying it, and held its outer wing cases out and fluttered its inner wings, and as it did so I got a distinct whiff of shield bug smell.
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shield bug 20200319 2.jpg
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shield bug 20200319 3.jpg
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