Black non-biting insect

Asked June 30, 2020, 9:28 PM EDT

Every spring these black (not a beetle) are on my blades of grass, dock, deck. They do not bite, have wings and are slow moving. I think they are the insects that lay eggs on my pontoons and dock pipes. The seagulls love them. Top of the mitt in michigan

Presque Isle County Michigan

1 Response

That description could fit a lot of different sorts of insects. Without a photo to work from, I can only guess that they might be adult stoneflies. See the information at Unfortunately, there are few pictures of the adults at this site. I have seen many in the 3/8 to 1/2 range that are black or very darkly colored.