Tortoise Beetle and Stink Bug Nymphs from Costa Rica

Subject: Metallic Green Bug
Location: Northern Costa Rica
May 2, 2013 1:58 pm
I encountered these insects on the edge of the forest in Northern Costa Rica. At first I thought they were some sort of beetle, but I found the same plants also had what seem to be nymphs of the same species. Searching for some ID for them online I came up empty. My guess is some sort of shield bug.
Signature: Siggy

Tortoise Beetle
Tortoise Beetle:  Omocerus casta

Dear Siggy,
You have two distinct insect orders represented in your request, and at least two, and possibly three different species.  The “metallic green bug” is actually a Tortoise Beetle, and we believe it is in the genus
Omocerus based on an image we located on The Befuddled Loris (scroll down) and verified on the Coleoptera of Costa Rica where it is identified as Omocerus casta.  This same beetle can also be found on the Smithsonian Tropical Research Institute and Discover Life.

Stink Bug Nymph
Stink Bug Nymph

The other two creatures are Hemipteran nymphs and we believe they are different species.  They are most likely Stink Bugs in the family Pentatomidae.

Stink Bug Nymph
Stink Bug Nymph

Well that clarifies things a bit. I found several of each kind of the insects I sent images of in the same small area, so I thought they must be of the same species. Thanks for taking the time to respond.


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