Insect related marks

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Tbsclmail Oct 22, 2017

So, while this may not be a photo of a bug, I figured this was a good place to have this identified. I am seeing these little dots all over in our garage. On the floor, on shelves, on objects... Some appear slightly raised, while others look flat. I assume some type of droppings, but they are in very tight groupings. Maybe not droppings?? Please let me know if you are familiar with the marks in the images! Thanks in advance!

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Tbsclmail Oct 22, 2017

Sorry, trying photos again!

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Flapdoodle Minot, ND Oct 23, 2017

A cannot be certain from these images, but at least some of the ones indoors might be spider droppings - see http://www.microlabgallery.com/gallery/images/SpiderFrassOnToy3.JPG for an example. The ones in the last image look like spores of artillery fungus - see http://rayhaluchinc.com/getting-rid-of-artillery-fungus/

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Tbsclmail Oct 23, 2017

Thank you! I’m assuming they are droppings only because the last image is on an item right next to the first photos. They are all in a garage, which of course has it’s door open at times, but is usually closed. Additionally, we have no wood mulch and our house was just constructed last year if any of that matters.

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Flapdoodle Minot, ND Oct 23, 2017

Thanks for the clarification re: specific location - I would not have mentioned the spore possibility for the last image if I had known that was an indoor image as well...

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Tbsclmail Oct 23, 2017

Is there any way this is fly related? Otherwise it must be spiders like you said if they leave grouped droppings like this. We’ve had an extreme number of flies in our garage we can’t get rid of. Some with green/gold bodies. We have also had maggots in our garbage cans a couple times in the garage. We were even taking it out frequently trying to avoid it but they showed up anyway. Greatly appreciate your extensive knowledge!

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Flapdoodle Minot, ND Oct 23, 2017

I would not completely rule out fly feces, but these usually have a different appearance - see https://www.extension.umn.edu/agriculture/horse/care/fly-control/img/figure5.jpg for an example.
Finally, if you have a moisture/humidity problem there, a fungus of some kind (but obviously not artillery fungus!) might be a factor. Without being able to physically examine these objects, I hesitate to feel certain about any option.

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Tbsclmail Oct 23, 2017

Thanks again. We do have some humid summers here at times, but with that always having been the case, I feel this problem is new or at least greatly increased. I realize you cannot say for certain without a better examination, so we’ll leave it at that! I have some good information to go forward with - appreciate it!

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