Its interesting the things we do attract certain bugs, pests, birds etc. . Wanted to demonstrate this after running several experiments and showing you my one succesful finding. So i added different things in 5 gallon buckets to see what mushrooms grew there or pests etc that were drawn to them. I found this bug existing only in the bucket of coffee grounds. No idea what it is or why its attracted to the grounds. The paper plate allows us to see one of them clearer. They are perfectly camouflauged and maybe that was the reason they are there. The point to the experiment is in Kansas we have heavy populations of rabbits and voles because they are attracted to what we do. In the citrus orchards there are heavy rat populations. The experiment inadvertenly we are our own worst enemies causing ourselves problems we dont realize we are causing. Honeycrisp apples draw japanese beetles as example. Are there things we can do to exploit pests weaknesses naturally? Can we repel or attracts pests by natural means? I see @scottfsmith doing a great deal of work on this every year with an environmentally friendly spray schedule. I approach the problem differently but with the same goal of reduced cost and chemicals by growing low or no spray fruits. Tobacco as an example can be an insect repellant and some people use it but it attracts pests as well. Im not the only one working on solutions to replace certain chemicals. This link has an example of uses of neoniotinoids which are controversal at this point.
I neither support nor oppose them just mentioning the existense of these synthetic products. Friends have used them for years What is a neonicotinoid? - Insects in the City
I think a large part of the problem is mass monoculture. A mixed orchard is harder and more inconvenient to tend, but it might not attract so many of the same pests.
Our neolithic ancestors may have had a point with swidden agrigulture - moving on and leaving the pests and disease behind.
A beetle for sure, but a variety of stinkie?
Im not sure ive ever seen a stink bug like that. Its very interesting to see them. Wondered that myself.
My first impression was Carrion Beetle, family Silphidae.
Turns out that genus Aclypea are herbivores which could explain the attraction to coffee grounds.
https://bugguide.net/node/view/167/bgimage?from=72
https://bugguide.net/node/view/148698/bgimage
…or their could be other things in the coffee grounds that attract other species of carrion beetles.
Thanks @LarryGene that looks like them. My attempt to experiment appears to be a success. Im curious what it was that they were actually attracted to and if they can be harmful in anyway.