They look like drain flies (aka: sewer flies) to me. Do a bit of image searches and I think that you will agree. I can't think of anything else that looks quite like your image. It's a fly, by the way, and not a moth. I just remembered: sometimes it's called the moth-fly.

I'd take a look at all of your sink and shower drains as a first defence. Do a thorough cleaning with drain cleaner or that tried-and-true remedy of baking soda and vinegar.

Here is a link that might be useful: Click here for more information

Far more effective cleaner for those drains is to use a brush. The various liquids don't do a thing to the slime layer on the walls of the drain -- and that's where the youngsters of the drain fly live.

Nasty job but someone has to do it.

Check your woolens. It may be a clothes moth.

Moth fly has a healthy set of antennae, just like regular moths. Your image is a good match for the moth fly.

Very common around sewage treatment plants, if there are any in your area.

Also common in houses wherever musty stuff congregates/gathers such as in drains, in constantly moist areas such as from leaking plumbing, and if a wet rag was tossed then forgotten.