Small ant like bugs with wings that fly/hop

Asked October 9, 2018, 9:32 PM EDT

Can you identify this bug? They came out of no where in my apartments bathroom and I don’t know where they are coming from or how to stop them. I see them mostly at night.

Columbia County Pennsylvania

1 Response

That appears to be some kind of parasitoid wasp, although I'd need to see better photos or specimens to make a more precise ID. If they're emerging in an apartment in large numbers, they may be attacking a pest insect (e.g., cockroaches) so might be indicators of a different issue. Again, knowing the species of the wasp would inform what hosts they might attack. Since you're in Pennsylvania, you can submit specimens to your local county extension office or directly to the PSU Insect ID Lab for identification: