Spotting

Thanks for trying with me, Peter :-)
This one's another odd ball (to me), in case you feel like it ;-):
http://www.projectnoah.org/spottings/692...

We have a some insect experts that hopefully might be able to shed more light on this bug for you :)

http://www.projectnoah.org/users/JuanDiT...
http://www.projectnoah.org/users/Latimer...

I was eyeing that one too, Peter.
I just don't get the triangle at the back.
Maybe this one stays a mystery :)

Ashish, this is definitely not Poecilometis eximius, which has a very distinct white mark between the scutellum and membrane. Also it's mottling is both black and white and it's membrane is brown.

It's definitely Pentatomidae family, Coreidae are leaf-footed bugs. I don't see those features on your nymph's hindlegs.

Closest I've been able to find is Euschistus acuminatus but I'm not positive.
http://bugguide.net/node/view/403520/bgi...

Just an idea:
Could it instead be a 'Coreus marginatus' ?

Am at page 22, no white marks yet.... and none with that steep triangle at the back

Euschistus tristigmus has distinct marmorated marks along its abdomen. Either your nymph has not developed those marks yet or we need to look for one with solid white marks.

See if you can track it down...

Euschistus: http://bugguide.net/node/view/7207/bgima...
Podisus: http://bugguide.net/node/view/4732/bgima...

That might be this fellow then, what do you think?
http://bugguide.net/node/view/533835/bgi...

It appears to be a nymph as well, hard to tell at that stage.

Thank you both!

And I think you are right, Peter!
Thanks, once again :)!

These are endemic to North America but are an introduced species in Korea and I'm more inclined to think it's part of the Euschistus genus.

Looks closer to Podisus maculiventris than Podisus brevispinus.

cool one - no idea though!