Friday 8 April 2016

zoology - Identification of an insect from midwest US


I have been seeing them more and more frequently indoors. I am currently in the Midwest United States, weather has been unusually warm for December, and there are many trees nearby. Can someone please help identify this?


The pictures are of the same bug, but from different angles.


BUG!!!!!!!!!!BUG!!!!



Answer



Brown marmorated stink bug (Halyomorpha halys):



bmsb-http://bugguide.net


See here, here, here or here for information.


These have become hugely invasive in the Northeast and Mid-Atlantic (and slowly Southeast) portions of the U.S. as well as along the West Coast.


The brown marmorated stink bug (Halyomorpha halys) is native to Eastern Asia, and likely 1st started spreading around the U.S. in Pennsylvania in the early 2000s.


bmsb map - wikipedia.com


Finally, you can see an image of the life stages of H. halys here.


Update:


Just for clarification, other brown stink bugs do exist and can be easily confused with H. halys. This article from UF IFAS, for example, demonstrates how to differentiate H. halys from Euschistus servus:


enter image description here


See here and here for additional ID tips and further reading.



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