Possible shield bug.

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Aussie Phil
Posts: 17
Joined: Mon Dec 19, 2016 2:53 pm

Possible shield bug.

Post by Aussie Phil »

Four of a series I shot yesterday, out on the back deck creeper, which is proving to be a mine of interesting beasties as summer progresses.

Possibly a shield bug, genus cermatulus? I have yet to properly identify it. It's covered in the wax "hairs" of Leafhopper nymphs, which it preys on.

Micro Nikkor 55m f2.8 at 1:1 with PK-13 extension tube. Shot with pop-up flash and foam diffuser mounted on lens.



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MarkSturtevant
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Joined: Sat Nov 21, 2015 6:52 pm
Location: Michigan, U.S.A.
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Post by MarkSturtevant »

Very good pictures!
That is certainly a reasonable possible ID, but shield bugs, a.k.a. stink bugs, belong to the family Pentatomidae. This critter belongs to the closely related family known as the assassin bugs (family Reduviidae). Pentatomids include predatory species (although not all of them are), and assassin bugs are always predatory. The contrasting bright and dark colors on this one is probably a warning that it is not to be messed with.
As far as I have seen, one can pick up a stink bug without much concern about being defensively pierced by their proboscis. But I would not pick up an assassin bug, not even a small one. They are much more bitey, and wow, do they hurt!
Mark Sturtevant
Dept. of Still Waters

Aussie Phil
Posts: 17
Joined: Mon Dec 19, 2016 2:53 pm

Post by Aussie Phil »

MarkSturtevant wrote:Very good pictures!
That is certainly a reasonable possible ID, but shield bugs, a.k.a. stink bugs, belong to the family Pentatomidae. This critter belongs to the closely related family known as the assassin bugs (family Reduviidae). Pentatomids include predatory species (although not all of them are), and assassin bugs are always predatory. The contrasting bright and dark colors on this one is probably a warning that it is not to be messed with.
As far as I have seen, one can pick up a stink bug without much concern about being defensively pierced by their proboscis. But I would not pick up an assassin bug, not even a small one. They are much more bitey, and wow, do they hurt!
Thanks!

Once I had the right family, Reduvidae, I was able to quickly narrow it down to being Gminatus Australis, using a local Tasmanian insect online guide. As for the warning about assassin bugs, well these ones are apparently very painful if they impale you with their rostrum, something I was unaware of when gently encouraging it to move for a better shot!

Must add, as someone who had Latin thumped into him at school, it's a delight to be able to use it occasionally. Rostrum is of course Latin for a bird's beak or an animals snout, but also the ram of a warship and so gave it's name to the speakers platform in the Forum Romanum, the Rostra (pl), which was adorned with six rams of Latin galleys captured at the battle of Antium in 338BC...and so on to our use of it as a speaker's podium.

So I shall now equate assassin bugs with a mental picture of a trireme smashing through an enemy's hull and take all due care. :D

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