Friday, 29 January 2021

What are these? Small black beetles found swimming very quickly in a FREEZING creek. Ambient temp was mid teens (f). They were active all night. When I got up at 5 am they were still very active. I had no idea there would be surface aquatic insects feeding in late January in northern LP Michigan.

What are these? Small black beetles found swimming very quickly in a FREEZING creek. Ambient temp was mid teens (f). They were active all night. When I got up at 5 am they were still very active. I had no idea there would be surface aquatic insects feeding in late January in northern LP Michigan. submitted by /u/mean_ass_raccoon
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source https://www.reddit.com/r/Entomology/comments/l86cht/what_are_these_small_black_beetles_found_swimming/

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